PBONDisawebserverthatpredictstheconformationofthepeptidebondbetweenanytwoaminoacids.PBONDclassifiesthepeptidebondsintooneoutoffourclasses,namelycisimide(cis-Pro),cisamide(cis-nonPro),transimide(trans-Pro)andtransamide(trans-nonPro).Moreover,foreverypredictionareliabilityindexiscomputed.Theunderlyingstructureoftheserverconsistsofthreestages:(1)featureextraction,(2)featureselectionand(3)peptidebondclas-sification.PBONDcanhandlebothsinglesequencesaswellasmultiplesequencesforbatchprocessing.Thepredictionscaneitherbedirectlydownloadedfromthewebsiteorreturnedviae-mail.ThePBONDwebserverisfreelyavailableathttp://195.251.198.21/pbond.html.
