PERCEPTRON-PTMKB v2

Tool

Propensity calculator

How likely is a residue to carry a given modification, judged from its neighbouring residues? Enter a window of 13 to 21 residues and a modification; the score is backed by thousands of experimentally verified sites.

Calculate propensity

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One-letter codes of the 20 standard amino acids. The residue in the middle is the one scored.

Examples:

Enter a valid subsequence to see which modifications apply to its middle residue.

Examples:

Positional matrix viewer

Browse the positional matrices behind the calculator. Each one is built from experimentally verified sites of one modification on one residue type, and shows how often each amino acid occurs at each position from −10 to +10 around the site.