The web-server PHYPred was developed to identify the phage enzymes and hydrolases based on the sequence information. The analysis of variance was used to seek optimized g-gap dipeptide. In jackknife cross-validation, our method can discriminate the bacteriophage enzymes from non-enzymes with maximum overall accuracy of 84.3% and can further discriminate phage hydrolase from non-hydrolases with maximum overall accuracy of 93.5%. All data can be downloaded from the Data window of this web-server.

Caveat

(1) For each submission, the number of protein sequences is limited at 100 or less;

(2) The input sequences must be in FASTA format; i.e., each protein sequence should start with a greater-than symbol (" > ") in the first column. The words right after the " > " symbol in the single initial line are optional and only used for the purpose of identification and description.

(3) If a query sequence contains any illegal character, the prediction will be stopped.