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1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
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2 "http://www.w3.org/TR/html4/transitional.dtd">
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3 <html>
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4 <head>
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5 <link rel="stylesheet" type="text/css" href="logo.css" >
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6 <title>CodonLogo - User's Manual</title>
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7 <meta name="author" content="Gavin E. Crooks" >
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8
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9 <style type="text/css">
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10 </style>
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11 </head>
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12
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13 <body style="align:center">
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14
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15 <table width="80%" border = '0' cellspacing='0' cellpadding='1' align="center">
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16 <tr><td >
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17 <h1>CodonLogo 1.0: User's Manual</h1>
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18
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19 </td><td align = "right" >
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20 ·
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21 <a href="./">about</a> ·
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22 <a href="create.cgi">create</a> ·
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23 <a href="examples.html">examples</a> ·
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24 <a class="selected" href="manual.html">manual</a> ·
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25 <br>
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26 <span style="font-size:small"> </span>
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27
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28 </td></tr>
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29
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30 <tr><td colspan="2" class="discourse">
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31
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32 <h4>Contents</h4>
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33
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34 <img alt="Sequence logo example."
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35 src="img/example.png" align="right" vspace="5" hspace="10">
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36 <!--
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37 <img alt="WebLogo: Create" width="499" height="633"
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38 src="img/weblogo_create.png" align="right" border='1' vspace="10" hspace="10"></a>
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39 -->
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40
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41 <ul>
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42 <li><a href="#intro">Introduction</a>
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43 </li><li><a href="#create">Creating Sequences Logos using the Web interface</a>
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44 </li><li><a href="#download">Downloading and Installing CodonLogo</a>
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45 </li><li><a href="#CLI"> Command Line Interface (CLI)</a>
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46 </li><li><a href="#API"> Application Programmer Interface (API)</a>
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47 </li><li><a href="#dev"> Development and Future Features</a>
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48 </li><li><a href="#misc">Miscellanea</a>
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49 </li>
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50 </ul>
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51
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52
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53 <a name="intro" ></a><h2>Introduction</h2>
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54
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55
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56 <p>
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57 <strong>CodonLogo</strong>
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58 is a web based application designed to make the
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59 <a href="create.cgi">generation</a> of
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60 codon sequence logos as easy and painless as possible.
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61 It is almost entirely based on the application WebLogo.
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62 </p>
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63
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64
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65 <p>
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66 <a href="http://www.lecb.ncifcrf.gov/~toms/sequencelogo.html">Sequence logos</a>
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67 are a graphical representation of an amino acid
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68 or nucleic acid multiple sequence alignment.
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69 Each logo consists of stacks of symbols, one stack for each position in the
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70 sequence. The overall height of the stack indicates the sequence conservation
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71 at that position, while the height of symbols within the stack indicates the
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72 relative frequency of each amino or nucleic acid at that position. The width of the stack is proportional to the fraction of valid symbols in that position. (Positions with many gasp have thin stacks.) In general, a sequence logo provides a richer and more precise description of, for example,
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73 a binding site, than would a consensus sequence.
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74 </p>
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75
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76
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77
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78
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79
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80
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81
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82 <!-- ============================================================== -->
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83
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84 <h4>References</h4>
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85
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86
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87 <p>
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88 <a href="http://bespoke.lbl.gov/">Crooks GE</a>,
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89 <a href="http://compbio.berkeley.edu/">Hon G</a>,
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90 <a href="http://compbio.berkeley.edu/">Chandonia JM</a>,
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91 <a href="http://compbio.berkeley.edu/people/brenner/">Brenner SE</a>
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92 WebLogo: A sequence logo
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93 generator,
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94 <em>Genome Research</em>, 14:1188-1190, (2004)
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95 [<a href="http://bespoke.lbl.gov/pubs/fulltext/Crooks2004a-GR-WebLogo.pdf">Full Text</a> ]
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96 </p>
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97
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98 <p>
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99 Schneider TD, Stephens RM. 1990.
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100 <a class="out" href="http://www.lecb.ncifcrf.gov/~toms/paper/logopaper/">Sequence Logos: A New Way to Display Consensus Sequences.</a>
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101 <em>Nucleic Acids Res.</em> <em>18</em>:6097-6100
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102 </p>
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103
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104
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105
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106
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107
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108
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109
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110 <a name="create" ></a>
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111 <h2>Creating Sequences Logos using the Web interface</h2>
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112
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113
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114 <h4>Sequence Data</h4>
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115 Enter your multiple sequence alignment here, or select a file to upload. Supported file formats include CLUSTALW, FASTA, plain flatfile, MSF, NBRF, PIR, NEXUS and PHYLIP. All sequences must be the same length, else CodonLogo will return an error and report the first sequence that differed in length from previous sequences.
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116
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117 <h4>Output format</h4>
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118
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119 <ul>
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120 <li> PNG : (600 DPI) Print resolution bitmap
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121 </li><li> PNG : (low res, 96 DPI) Screen resolution bitmap
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122 </li><li> JPEG :Screen resolution bitmap
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123 </li><li> EPS : Encapsulated postscript
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124 </li><li> PDF : Portable Document Format
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125 </li>
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126 </ul>
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127 Generally speaking, vector formats (EPS and PDF) are better for printing, while bitmaps (JPEG and PNG) are more suitable for displaying on the screen or embedding into a web page.
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128
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129 <h4>Logo size</h4>
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130 The physical dimensions of the generated logo.
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131 Specifically, controls the size of individual symbols stacks.
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132 <ul>
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133 <li> small : 5.4 points wide (Same as 9pt Courier), aspect ratio 5:1
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134 </li><li> medium : Double the width and height of small.
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135 </li><li> large : Triple the width and height of small.
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136 </li>
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137 </ul>
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138 The choices have been limited to promote inter-logo consistency. Small logos can fit 80 stacks across a printed page, or 40 across a half page column. The <a href="#CLI">command line interface</a> provides greater control, if so desired.
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139
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140 <h4>Stacks per line</h4>
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141 If the length of the sequences is greater than this maximum number of stacks per line, then the logo will be split across multiple lines.
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142
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143 <h4>Sequence type</h4>
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144 The type of biological molecule.
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145 <ul>
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146 <li> auto: Automatically guess sequence type from the data
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147 </li><li> protein
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148 </li><li> dna
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149 </li><li> rna
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150 </li>
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151 </ul>
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152
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153 <h4>Ignore lower case</h4>
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154 Disregard lower case letters in the and only count
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155 upper case letters in sequences?
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156
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157 <h4>Units</h4>
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158 The units used for the y-axis.
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159 <ul>
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160 <li> probability: Show residue probabilities, rather than information content. If <a href="#CA">compositional adjustment</a> is disabled, then these are the raw residue frequencies.
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161 </li><li> bits: Information content in bits
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162 </li><li> nats: Natural units, 1 bit = ln 2 (0.69) nats
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163 </li><li> kT : Thermal energy units in natural units (Numerically the same as nats)
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164 </li><li> kJ/mol : Thermal energy (Assuming T = 300 K)
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165 </li><li> kcal/mol : Thermal energy (Assuming T = 300 K)
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166 </li>
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167 </ul>
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168
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169
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170 <h4>First position number</h4>
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171 The numerical label of the first residue in the multiple sequence alignment. The label must be an integer. Residue labels for the logo will be relative to this number. (See also: Logo Range)
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172 <h4>Logo range</h4>
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173 By default, all sequence data is displayed in the Sequence Logo. With this option, you can instead show a subrange of the entire sequence. Start and end positions are included, and the numbering of positions is relative to the sequence number of the first position. (See also: First Position Number ) Thus, if the first position number is "2", start is "5" and end is "10", then the 4th through 9th (inclusive) sequence positions will be displayed, and they will be numbered "5", "6", "7", "8", "9" and "10".
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174
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175 <a name="CA"></a>
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176 <h4>Composition</h4>
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177 <p>
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178 The background composition of the genome or proteome from which the sequences have been drawn. The default, automatic option is to use equiprobable background for nucleic acids and a typical amino acid usage pattern for proteins. However, you may also explicitly set the expected CG content for nucleic acid sequences, insists on equiprobable background distributions, or turn off composition adjustment altogether.
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179 </p>
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180 <p>
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181 Compositional adjustment has two effects. First, the information content of a site is defined as the relative entropy of the monomers at that site to the background distribution. Consequentially, rare monomers have higher information content (when they occur) than relatively common monomers.
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182 </p>
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183 <p>
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184 Secondly, the background composition is used in the small sample correction of information content. Briefly, if only a few sequences are available in the multiple sequence alignment, then sites typically appear more conserved than they really are. Small samples bias the relative entropy upwards. To compensate, we add pseudocounts to the actual counts, proportional to the expected background composition. These pseudocounts smooth the data for small samples, but become irrelevant for large samples. The proportionality constant is set to 4 for nucleic acid sequences, and 20 for proteins (These numbers have been found to give reasonable results in practice).
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185 </p>
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186 <p>
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187 Behind the scenes, things are more complex. We do a full Bayesian calculation, starting with explicit Dirichlet priors based on the background composition, to which we add the data and then calculate both the posterior mean relative entropy (the stack height) and Bayesian 95% confidence intervals for error bars. These interesting details will be explained elsewhere.
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188 </p>
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189
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190 <h4>Scale stack width</h4>
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191 Scale the visible stack width by the fraction of symbols in the column? (i.e. columns with many gaps or unknown residues are narrow.)
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192
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193 <h4>Error bars</h4>
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194 Display error bars. These indicate an approximate, Bayesian 95% confidence interval.
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195
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196 <h4>Title</h4>
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197 Give your logo a title.
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198
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199 <h4>Figure label</h4>
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200 An optional figure label, added to the top left (e.g. '(a)')
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201
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202 <h4>X-axis</h4>
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203 Add a label to the x-axis, or hide axis altogether.
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204
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205 <h4>Y-axis</h4>
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206 The vertical axis indicates the information content of a sequence position. Use this option to toggle the y-axis and override the default axis label.
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207
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208 <h4>Y-axis scale</h4>
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209 The height of the y-axis in designated units. The automatic option will pick reasonable defaults based on the sequence type and axis unit.
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210
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211 <h4>Y-axis tic spacing</h4>
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212 The distance between major tic marks on the Y-axis.
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213
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214 <h4>Sequence end labels</h4>
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215 Choose this option to label the 5' & 3' ends of nucleic acid or the N & C termini of amino acid sequences.
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216
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217 <h4>Version fineprint</h4>
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218 Toggle display of the CodonLogo version information in the lower right corner.
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219
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220 <h4>Color Scheme</h4>
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221 <ul>
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222 <li> auto : use Base Pairing for nucleic acids (NA), Hydrophobicity for amino acids (AA).
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223 </li><li> monochrome: All symbols black
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224 </li><li> Base Pairing (NA default) :
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225 <table border="1" cellpadding="2" cellspacing="0" >
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226 <tr><td>2 Watson-Crick hydrogen bonds</td><td>TAU</td><td style="color:darkorange">dark orange</td></tr>
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227 <tr><td>3 Watson-Crick hydrogen bonds</td><td>GC</td><td style="color:blue"> blue</td></tr>
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228 </table>
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229
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230 </li><li> Classic (NA) : WebLogo (version 1 and 2) and makelogo default color scheme for nucleic acids: G, orange; T & U, red; C, blue; and A, green.
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231 <table border="1" cellpadding="2" cellspacing="0" >
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232 <tr><td>G</td><td style="color:orange"> orange</td></tr>
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233 <tr><td>TU</td><td style="color:red"> red</td></tr>
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234 <tr><td>C</td><td style="color:blue">blue</td></tr>
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235 <tr><td>A</td><td style="color:green">green</td></tr>
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236 </table>
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237
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238 </li><li> Hydrophobicity (AA default) :
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239 <table border="1" cellpadding="2" cellspacing="0" >
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240 <tr><td>Hydrophobic</td><td>RKDENQ</td><td style="color:black"> black</td></tr>
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241 <tr><td>Neutral</td><td>SGHTAP</td><td style="color:green"> green</td></tr>
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242 <tr><td>Hydrophilic</td><td>YVMCLFIW</td><td style="color:blue">blue</td></tr>
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243 </table>
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244
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245 </li><li> Chemistry (AA): Color amino acids according to chemical properties. WebLogo (version 1 and 2) and makelogo default color.
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246 <table border="1" cellpadding="2" cellspacing="0" >
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247 <tr><td>Polar</td><td>G,S,T,Y,C,Q,N</td><td style="color:green"> green</td></tr>
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248 <tr><td>Basic</td><td>K,R,H</td><td style="color:blue"> blue</td></tr>
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249 <tr><td>Acidic</td><td>D,E</td><td style="color:red">red</td></tr>
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250 <tr><td>Hydrophobic</td><td>A,V,L,I,P,W,F,M</td><td style="color:black">black</td></tr>
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251 </table>
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252
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253 </li><li> Charge (AA) :
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254 <table border="1" cellpadding="2" cellspacing="0" >
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255 <tr><td>Positive</td><td>KRH</td><td style="color:blue"> blue</td></tr>
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256 <tr><td>Negative</td><td>DE</td><td style="color:red"> red</td></tr>
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257 </table>
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258
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259
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260
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261
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262 </li><li> Custom : A custom color scheme can be specified in the input field below. Specify colors on the left and associated symbols on the right. Colors are entered using <a href="http://www.w3.org/TR/REC-CSS2/syndata.html#color-units">CSS2 (Cascading Style Sheet)</a> syntax. (e.g. 'red', '#F00', '#FF0000', 'rgb(255, 0, 0)', 'rgb(100%, 0%, 0%)' or 'hsl(0, 100%, 50%)' for the color red.)
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263 </li>
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264 </ul>
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265
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266 <h4>More Options</h4>
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267 The CodonLogo <a href="#CLI">command line client</a>, <code>codonlogo</code>, provides many more options and greater control over the final logo appearance.
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268
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269
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270
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271
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272
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273
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274 <!-- ========================================================= -->
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275 <a name="download" ></a>
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276 <h2>Installing CodonLogo</h2>
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277
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278
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279 <h4>Dependencies</h4>
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280 <p>
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281 CodonLogo is written in python. It is necessary to have <a href="http://www.python.org/download/">python 2.3, 2.4 or 2.5</a> and the
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282 extension packages <a href="http://www.scipy.org/Download">numpy</a> and
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283 <a href="http://code.google.com/p/corebio">corebio</a>
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284 installed before WebLogo will run. WebLogo also requires a recent version of <a href="http://www.cs.wisc.edu/~ghost/">ghostscript</a> to create PNG and PDF output.
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285 </p>
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286
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287 <!--
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288 <h4> Download and Installation</h4>
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289 <p>
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290 If the python package <a href="http://peak.telecommunity.com/DevCenter/setuptools"><code>setuptools</code></a> has been installed, then WebLogo and its dependancies can be downloaded and installed with a single command:
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291 <pre>
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292 sudo easy_install weblogo
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293 </pre>
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294 </p>-->
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295 <!--
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296 <p>
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297 Alternatively, CodonLogo and its dependancies can be installed manually.
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298 The CodonLogo source code can be downloaded from
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299 <a href="http://code.google.com/p/weblogo/">http://code.google.com/p/weblogo/</a>.
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300 This code is distributed under various <a href="http://www.opensource.org/docs/definition">open source licenses</a>. Please consult the <code>LICENSE.txt</code> file in the source distribution for details.
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301 </p>-->
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302
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303 <p>
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304 After unpacking the CodonLogo tarfile, it should be possible to immediately create
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305 logos using the command line client (Provided that python, numpy, corebio and ghostscript have already been installed).
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306 </p>
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307 <pre>
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308 ./codonlogo --format PNG < htdocs/examples/cap_hth.fa > cap_hth.png
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309 </pre>
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310 <p>
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311 Please consult the file <code>build_examples.sh</code> for more examples.
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312 </p><p>
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313 To run CodonLogo as a stand alone web service, run the logo server command :
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314 </p>
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315 <pre>
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316 ./codonlogo --serve
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317 </pre>
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318 <p>
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319 It should now be possible to access CodonLogo at <a href="http://localhost:8080/">http://localhost:8080/</a>.
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320 </p>
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321
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322 <p>
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323 The command line client and WebLogo libraries can be permanently installed using the supplied <code>setup.py</code> script.
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324 <pre>
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325 sudo python setup.py install
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326 </pre>
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327 Run <code>python setup.py help</code> for more installation options. For example, to specifically install the CodonLogo script to /usr/local/bin
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328 <pre>
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329 sudo python setup.py install_scripts --install-dir /usr/local/bin
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330 </pre>
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331 </p>
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332
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333
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334 </p>
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335 <h4>Web App</h4>
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336
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337 <p>
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338 To use CodonLogo as a web application, first install the weblogo dependancies and libraries as above, then
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339 place (or link) the <code>weblogolib/weblogo_htdocs</code> directory
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340 somewhere within the document root of your webserver. The webserver
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341 must be able to execute the CGI script <code>create.cgi</code>. For Apache, you may have to add an <code>ExecCGI</code>
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342 option and add a cgi handler in the <code>httpd.conf</code> configuration file.
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343 Something like this:
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344 </p>
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345 <pre>
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346 <Directory "/home/httpd/htdocs/weblogo/">
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347 Options FollowSymLinks MultiViews ExecCGI
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348 AllowOverride None
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349 Order allow,deny
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350 Allow from all
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351 </Directory>
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352 ...
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353 # To use CGI scripts outside of ScriptAliased directories:
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354 # (You will also need to add "ExecCGI" to the "Options" directive.)
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355 #
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356 AddHandler cgi-script .cgi
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357 </pre>
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358 It may also be necessary to set the <code>PATH</code> and <code>PYTHONPATH</code> environment variables.
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359 <pre>
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360 SetEnv PYTHONPATH /path/to/weblogo/libraries
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361 </pre>
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362 The cgi script also has to be able to find the '<code>gs</code>' ghostscript executable. If ghostscipt is installed in a non-standard location add the following environment variable.
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363 <pre>
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364 SetEnv COREBIOPATH /path/to/gs
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365 </pre>
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366 The maxium bytes of uploaded sequecne data can be controlled with the <code>WEBLOGO_MAX_FILE_SIZE</code> environment variable.
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367 <pre>
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368 SetEnv WEBLOGO_MAX_FILE_SIZE 1000000
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369 </pre>
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370
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371
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372
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373
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374 <!-- ================================================================== -->
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375 <a name="CLI" ></a>
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376 <h2><code>codonlogo</code>, The CodonLogo Command Line Interface (CLI)</h2>
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377 The command line client has many options not available through the web interface. Please consult the bundled <code>build_examples.sh</code> script for inspiration.
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378 <pre >
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379 Usage: codonlogo [options] < sequence_data.fa > sequence_logo.eps
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380
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381 Create sequence logos from biological sequence alignments.
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382
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383 Options:
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384 --version show program's version number and exit
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385 -h --help show this help message and exit
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386
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387 Input/Output Options:
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388 -f --fin FILENAME Sequence input file (default: stdin)
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389 --fin-format FORMAT Multiple sequence alignment format: (clustal,
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390 fasta, plain, msf, genbank, nbrf, nexus,
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391 phylip, stockholm, intelligenetics, table,
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392 array)
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393 -o --fout FILENAME Output file (default: stdout)
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394 -F --format FORMAT Format of output: eps (default), png,
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395 png_print, pdf, jpeg, txt
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396
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397 Logo Data Options:
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398 -A --sequence-type TYPE The type of sequence data: 'protein', 'rna' or
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399 'dna'.
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400 -a --alphabet ALPHABET The set of symbols to count, e.g. 'AGTC'. All
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401 characters not in the alphabet are ignored. If
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402 neither the alphabet nor sequence-type are
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403 specified then weblogo will examine the input
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404 data and make an educated guess. See also
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405 --sequence-type, --ignore-lower-case
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406 --ignore-lower-case YES/NO
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407 Disregard lower case letters and only count
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408 upper case letters in sequences? (Default: No)
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409 -U --units NUMBER A unit of entropy ('bits' (default), 'nats',
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410 'digits'), or a unit of free energy ('kT',
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411 'kJ/mol', 'kcal/mol'), or 'probability' for
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412 probabilities
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413 --composition COMP. The expected composition of the sequences:
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414 'auto' (default), 'equiprobable', 'none' (Do
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415 not perform any compositional adjustment), a
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416 CG percentage, a species name (e.g. 'E. coli',
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417 'H. sapiens'), or an explicit distribution
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418 (e.g. {'A':10, 'C':40, 'G':40, 'T':10}). The
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419 automatic option uses a typical distribution
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420 for proteins and equiprobable distribution for
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421 everything else.
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422 --weight NUMBER The weight of prior data. Default: total
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423 pseudocounts equal to the number of monomer
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424 types.
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425 -i --first-index INDEX Index of first position in sequence data
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426 (default: 1)
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427 -l --lower INDEX Lower bound of sequence to display
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428 -u --upper INDEX Upper bound of sequence to display
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429
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430 Logo Format Options:
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431 These options control the format and display of the logo.
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432
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433 -s --size LOGOSIZE Specify a standard logo size (small, medium
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434 (default), large)
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435 -n --stacks-per-line COUNT Maximum number of logo stacks per logo line.
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436 (default: 40)
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437 -t --title TEXT Logo title text.
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438 --label TEXT A figure label, e.g. '2a'
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439 -X --show-xaxis YES/NO Display sequence numbers along x-axis?
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440 (default: True)
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441 -x --xlabel TEXT X-axis label
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442 -S --yaxis UNIT Height of yaxis in units. (Default: Maximum
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443 value with uninformative prior.)
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444 -Y --show-yaxis YES/NO Display entropy scale along y-axis? (default:
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445 True)
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446 -y --ylabel TEXT Y-axis label (default depends on plot type
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447 and units)
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448 -E --show-ends YES/NO Label the ends of the sequence? (default:
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449 False)
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450 -P --fineprint TEXT The fine print (default: weblogo version)
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451 --ticmarks NUMBER Distance between ticmarks (default: 1.0)
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452 --errorbars YES/NO Display error bars? (default: True)
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453
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454 Color Options:
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455 Colors can be specified using CSS2 syntax. e.g. 'red', '#FF0000', etc.
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456
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457 -c --color-scheme SCHEME Specify a standard color scheme (auto, base
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458 pairing, charge, chemistry, classic,
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459 hydrophobicity, monochrome)
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460 -C --color COLOR SYMBOLS DESCRIPTION
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461 Specify symbol colors, e.g. --color black AG
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462 'Purine' --color red TC 'Pyrimidine'
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463 --default-color COLOR Symbol color if not otherwise specified.
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464
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465 Advanced Format Options:
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466 These options provide fine control over the display of the logo.
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467
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468 -W --stack-width POINTS Width of a logo stack (default: 10.8)
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469 -H --stack-height POINTS Height of a logo stack (default: 54.0)
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470 --box YES/NO Draw boxes around symbols? (default: no)
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471 --resolution DPI Bitmap resolution in dots per inch (DPI).
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472 (default: 96 DPI, except png_print, 600 DPI)
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473 Low resolution bitmaps (DPI<300) are
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474 antialiased.
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475 --scale-width YES/NO Scale the visible stack width by the fraction
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476 of symbols in the column? (i.e. columns with
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477 many gaps of unknowns are narrow.) (default:
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478 yes)
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479 --debug YES/NO Output additional diagnostic information.
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480 (default: False)
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481
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482 CodonLogo Server:
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483 Run a standalone webserver on a local port.
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484
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485 --serve Start a standalone CodonLogo server for creating
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486 sequence logos.
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487 --port PORT Listen to this local port. (Default: 8080)
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488 </pre >
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489 <!-- ===================================================================== -->
|
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490 <a name="API" ></a>
|
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|
491 <h2>WebLogo Application Programmer Interface (API)</h2>
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492
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493 The WebLogo python libraries provide even greater flexibility than the command line client. The code is split between two principle packages, <code>weblogo</code> itself, which contains specialized sequence logo generation code, and <code>corebio</code>, a package that contains code of more general utility.
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494 Please consult the <a href="http://weblogo.googlecode.com/svn/trunk/apidocs/index.html">WebLogo</a> and <a href="http://corebio.googlecode.com/svn/tags/0.5.0/apidocs/index.html">CoreBio</a> API documentation.
|
|
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495
|
|
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496
|
|
|
497
|
|
|
498 <!-- ================================================================== -->
|
|
|
499 <a name="dev" ></a>
|
|
|
500 <h2>WebLogo Development and Future Features</h2>
|
|
|
501 <p>
|
|
|
502 The development project is hosted at
|
|
|
503 <a href="http://code.google.com/p/weblogo/">http://code.google.com/p/weblogo</a>.
|
|
|
504
|
|
|
505 If you wish to extend WebLogo or to contribute code, then you should download the full source code development package directly from the subversion repository.
|
|
|
506 </p>
|
|
|
507 <pre>
|
|
|
508 > svn checkout http://weblogo.googlecode.com/svn/trunk/ weblogo
|
|
|
509 > cd weblogo
|
|
|
510 > ./weblogo < cap.fa > cap.eps
|
|
|
511 </pre>
|
|
|
512 <p>
|
|
|
513 Please consult the developer notes, <code>DEVELOPERS.txt</code> and software license <code>LICENSE.txt</code>
|
|
|
514 </p>
|
|
|
515
|
|
|
516 <p> Outstanding bugs and feature requests are listed on the <a href="http://code.google.com/p/weblogo/issues/list">WebLogo issue tracker.</a>
|
|
|
517 </p>
|
|
|
518
|
|
|
519 <a name="misc" ></a>
|
|
|
520 <h2>Miscellanea</h2>
|
|
|
521 <h4> Release Notes and Known Bugs</h4>
|
|
|
522 The <a href="weblogo_changelog.txt">WebLogo release notes</a> detail changes to WebLogo and known issues with particular versions.
|
|
|
523
|
|
|
524 <h4>WebLogo 2</h4>
|
|
|
525 The legacy WebLogo 2 sever can be found <a href="http://weblogo.berkeley.edu/">here.</a>
|
|
|
526
|
|
|
527
|
|
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528
|
|
|
529 <h4>Acknowledgments</h4>
|
|
|
530
|
|
|
531 <p>
|
|
|
532 WebLogo was created by
|
|
|
533 <a href="http://threeplusone.com/">Gavin E. Crooks</a>,
|
|
|
534 <a href="http://compbio.berkeley.edu/">Liana Lareau</a>,
|
|
|
535 <a href="http://compbio.berkeley.edu/">Gary Hon</a>,
|
|
|
536 <a href="http://compbio.berkeley.edu/">John-Marc Chandonia</a> and
|
|
|
537 <a href="http://compbio.berkeley.edu/people/brenner/">Steven E. Brenner</a>.
|
|
|
538 <a href="weblogo_changelog.txt">Many others</a> have provided suggestions, bug fixes and moral support.
|
|
|
539 </p>
|
|
|
540
|
|
|
541 <p>
|
|
|
542 WebLogo was originally based upon the programs
|
|
|
543 <a href="http://www.lecb.ncifcrf.gov/~toms/delila/alpro.html">alpro</a> and
|
|
|
544 <a href="http://www.lecb.ncifcrf.gov/~toms/delila/makelogo.html">makelogo</a>,
|
|
|
545 both of which are part of Tom Schneider's
|
|
|
546 <a href="http://www.lecb.ncifcrf.gov/~toms/delila.html">delila</a> package. Many thanks
|
|
|
547 are due to him for making this software freely available and for encouraging its use.
|
|
|
548 </p>
|
|
|
549
|
|
|
550
|
|
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551
|
|
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552
|
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553
|
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|
554 </td></tr>
|
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|
555 </table>
|
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556
|
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557
|
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558 <script type="text/javascript">
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|
559 var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
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|
560 document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
|
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|
561 </script>
|
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|
562 <script type="text/javascript">
|
|
|
563 var pageTracker = _gat._getTracker("UA-5951066-1");
|
|
|
564 pageTracker._trackPageview();
|
|
|
565 </script>
|
|
|
566 </body>
|
|
|
567 </html>
|
|
|
568
|
|
|
569
|
|
|
570
|
|
|
571
|
|
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572
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573
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574
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575
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576
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