What it does

This tool will calculate several properties for each given input sequence. The result will contain the following columns:

• ID of the sequence
• Molecular weight
• Isoelectric point
• gravy according to Kyte and Doolittle
• Length of the sequence
• Instability index, according to Guruprasad, 1990. (Any value above 40 means the protein is unstable (has a short half life))
• Aromaticity, according to Lobry, 1994. (It is simply the relative frequency of Phe+Trp+Tyr)
• Sequence (as given in the input)

For more information see the BioPython ProteinAnalysis documentation.