Scansite

Scansite searches for motifs within proteins that are likely to be phosphorylated by specific protein kinases or bind to domains. The current release version 2.0 includes 62 motifs characterizing the binding and/or substrate specificities of many families of Ser/Thr- or Tyr-kinases, SH2, SH3, PDZ, 14-3-3 and PTB domains, together with signature motifs for PtdIns(3,4,5)P(3)-specific PH domains
See reference.