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author iracooke
date Sun, 06 Jan 2013 20:03:20 -0500
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<tool id="proteomics_search_omssa_1" name="OMSSA MSMS Search" version="1.0.0">
	<requirements>
		<requirement type="package">protkgem</requirement>
	</requirements>
	
	<description>Run an OMSSA MS/MS Search</description>
		
	<command>#if $database.source_select=="built_in":
		omssa_search.rb -d $database.dbkey 
		#else #omssa_search.rb -d $database.fasta_file
		#end if
		
		--var-mods='
		$variable_mods
		'
		
		--fix-mods='
		$fixed_mods
		'
		
		--searched-ions='
		$searched_ions
		'
		
		$input_file -o $output -r --enzyme=$enzyme --precursor-ion-tol-units=$precursor_tolu -v $missed_cleavages -f $fragment_ion_tol -p $precursor_ion_tol --num-peaks-for-multi-isotope-search $multi_isotope $use_average_mass $respect_precursor_charges --max-hit-expect $max_hit_expect --intensity-cut-off $intensity_cut_off

	</command>
	

	<inputs>	
		<conditional name="database">
			<param name="source_select" type="select" label="Database source">
				<option value="built_in">Built-In</option>
				<option value="input_ref">Uploaded fasta file</option>
			</param>
			<when value="built_in">
				<param name="dbkey" type="select" format="text" >
					<label>Database</label>
					<options from_file="pepxml_databases.loc">
						<column name="name" index="0" />
						<column name="value" index="2" />
					</options>
				</param>
			</when>
			<when value="input_ref">
				<param name="fasta_file" type="data" format="fasta" label="Uploaded FASTA file" />
			</when>
		</conditional>
		
		<param name="input_file" type="data" format="mgf" multiple="false" label="MSMS File" help="An mgf file with MS/MS data"/>		

		<param name="variable_mods" format="text" type="select" multiple="true" label="Variable Modifications" help="Hold the appropriate key while
			clicking to select multiple items">
			<options from_file="omssa_mods.loc">
				<column name="name" index="0" />
				<column name="value" index="2" />
			</options>
		</param>		

		<param name="fixed_mods" format="text" type="select" multiple="true" label="Fixed Modifications" help="Hold the appropriate key while
		clicking to select multiple items">
			<options from_file="omssa_mods.loc">
				<column name="name" index="0" />
				<column name="value" index="2" />
			</options>
		</param>

		
		<param name="missed_cleavages" type="select" format="text" help="Allow peptides to contain up to this many missed enzyme cleavage sites">
			<label>Missed Cleavages Allowed</label>
		    <option value="0">0</option>		
			<option value="1">1</option>
			<option value="2">2</option>
		</param>

		<param name="enzyme" type="select" format="text">
		    <label>Enzyme</label>
		    <option value="0">Trypsin</option>
			<option value="1">Arg-C</option>
			<option value="2">CNBr</option>
			<option value="3">Chymotrypsin (FYWL)</option>
			<option value="4">Formic Acid</option>
			<option value="5">Lys-C</option>
			<option value="6">Lys-C, no P rule</option>
			<option value="7">Pepsin A</option>
			<option value="8">Trypsin+CNBr</option>
			<option value="9">Trypsin+Chymotrypsin (FYWLKR)</option>
			<option value="10">Trypsin, no P rule</option>
			<option value="11">Whole protein</option>
			<option value="12">Asp-N</option>
			<option value="13">Glu-C</option>
			<option value="14">Asp-N+Glu-C</option>
			<option value="15">Top-Down</option>
			<option value="16">Semi-Tryptic</option>
			<option value="17">No Enzyme</option>
			<option value="18">Chymotrypsin, no P rule (FYWL)</option>
			<option value="19">Asp-N (DE)</option>
			<option value="20">Glu-C (DE)</option>
			<option value="21">Lys-N (K)</option>
			<option value="22">Thermolysin, no P rule</option>
			<option value="23">Semi-Chymotrypsin (FYWL)</option>
			<option value="24">Semi-Glu-C</option>
		</param>

		<param name="fragment_ion_tol" help="Fragment Ion Tolerance in Daltons" type="float" value="0.65" min="0" max="10000" label="Fragment ion tolerance"/>
		<param name="max_hit_expect" help="Expect values less than this are considered to be hits. Use a large value, eg 10000 when results will be processed downstream with Peptide Prophet" type="float" value="1.0" min="0" max="10000000" label="Maximum Expect value allowed in the hit list"/><!-- -he-->
		<param name="intensity_cut_off" help="Peak intensity cut-off as a fraction of maximum peak intensity" type="float" value="0.0005" min="0" max="1" label="Peak intensity cut-off"/><!-- -ci-->


		<param name="precursor_ion_tol" help="Precursor Ion Tolerance (Da or ppm)" type="float" value="100" min="0" max="10000" label="Precursor ion tolerance"/>
		<param name="precursor_tolu" type="select" format="text">
		    <label>Precursor Ion Tolerance Units</label>
		    <option value="ppm">ppm</option>		
			<option value="Da">Da</option>
		</param>
		
		<param name="use_average_mass" type="boolean" label="Use average precursor masses" help="Match precursor to average mass of the parent ion instead of its monoisotopic mass" truevalue="-a average" falsevalue=""/>
		<param name="respect_precursor_charges" type="boolean" label="Respect precursor charges" help="Use precursor charge information in input file rather than OMSSA's inferred value" truevalue="--respect-charges" falsevalue=""/>
		
		<param name="multi_isotope" type="select" format="text" help="Include this many neighbouring peaks when searching for a match to the precursor mass. Only used when doing monoisotopic search">
			<label>Multi-isotope search.</label>
		    <option value="0">0</option>
			<option value="1">1</option>
			<option value="2">2</option>
			<option value="3">3</option>
			<option value="4">4</option>
		</param>

		<param name="searched_ions" display="checkboxes" type="select" multiple="true" format="text" label="Ions included in search" help="">
		    <option selected="true" value="0">a</option>
			<option selected="true" value="1">b</option>
			<option value="2">c</option>
			<option selected="true" value="3">x</option>
			<option selected="true" value="4">y</option>
			<option value="5">zdot</option>
			<option value="10">adot</option>
			<option value="11">x-CO2</option>
			<option value="12">adot-CO2</option>
		</param>
		
	</inputs>

	<outputs>
		<data format="raw_pepxml" name="output" metadata_source="input_file" label="omssa_vs_${database.dbkey if $database.has_key('dbkey') else $database.fasta_file.display_name}.${input_file.display_name}.pepXML"/>
	</outputs>

	<help>
**What it does**

Runs an MS/MS database search using the OMSSA search engine. Output is in the form of a pepXML file containing identified peptides along with their raw search scores.

----

**Citation**

If you use this tool please read and cite the paper describing OMSSA. 

Geer L. Y., et al. “Open mass spectrometry search algorithm” *J. Proteome Res.* 3(5), 958-964 (2004).

	</help>
</tool>