PTM - PHOSIDA Symbol Accession Code Position Surrounding Sequence Type Kif21b IPI00135132 S 1150 AQMKAVpSAECLGP phosphorylation Kif21b IPI00135132 S 1217 RGATDTpSPLTRRK phosphorylation Kif21b IPI00135132 S 1242 MGFTPPpSSPPTRP phosphorylation Kif21b IPI00135132 S 1243 GFTPPSpSPPTRPR phosphorylation Kif21b IPI00135132 S 969 EHLQAEpSPEEEKG phosphorylation Kif21b IPI00135132 T 1239 STDMGFpTPPSSPP phosphorylation Kif21b IPI00135132 T 1621 NYVPGLpTPCLPRR phosphorylation