PhosphoBase, a database of phosphorylation sites: release 2.0

PhosphoBase contains information about phosphorylated residues in proteins and data about peptide phosphorylation by a variety of protein kinases. The data are collected from literature and compiled into a common format. The current release of PhosphoBase (October 1998, version 2.0) comprises 414 ph osphoprotein entries covering 1052 phosphorylatable serine, threonine and t yrosine residues. The kinetic data from peptide phosphorylation assays for similar to 330 oligopeptides is also included. The database entries are cro ss-referenced to the corresponding records in the Swiss-Prot protein databa se and literature references are linked to MedLine records. PhosphoBase is available via the WWW at http://www.cbs.dtu.dk/databases/ PhosphoBase/.