PTM - CPLM Gene Name UniProt ID Type Position Code KIF21B; KIAA0449 O75037 Acetylation 677 K KIF21B; KIAA0449 O75037 Acetylation 702 K KIF21B; KIAA0449 O75037 Ubiquitination 205 K KIF21B; KIAA0449 O75037 Ubiquitination 1051 K

PTM - dbPAF Gene Name UniProt ID Position Type Species KIF21B; KIAA0449 O75037 1149 S Homo sapiens(Human) KIF21B; KIAA0449 O75037 1167 S Homo sapiens(Human) KIF21B; KIAA0449 O75037 1197 S Homo sapiens(Human) KIF21B; KIAA0449 O75037 1215 S Homo sapiens(Human) KIF21B; KIAA0449 O75037 1222 S Homo sapiens(Human) KIF21B; KIAA0449 O75037 1231 S Homo sapiens(Human) KIF21B; KIAA0449 O75037 1232 T Homo sapiens(Human) KIF21B; KIAA0449 O75037 1237 T Homo sapiens(Human) KIF21B; KIAA0449 O75037 1240 S Homo sapiens(Human) KIF21B; KIAA0449 O75037 1241 S Homo sapiens(Human) KIF21B; KIAA0449 O75037 1244 T Homo sapiens(Human) KIF21B; KIAA0449 O75037 1257 T Homo sapiens(Human) KIF21B; KIAA0449 O75037 1258 S Homo sapiens(Human) KIF21B; KIAA0449 O75037 1261 S Homo sapiens(Human) KIF21B; KIAA0449 O75037 1264 S Homo sapiens(Human) KIF21B; KIAA0449 O75037 1269 S Homo sapiens(Human) KIF21B; KIAA0449 O75037 1272 S Homo sapiens(Human) KIF21B; KIAA0449 O75037 1274 S Homo sapiens(Human) KIF21B; KIAA0449 O75037 1275 S Homo sapiens(Human) KIF21B; KIAA0449 O75037 1421 S Homo sapiens(Human) KIF21B; KIAA0449 O75037 1490 T Homo sapiens(Human) KIF21B; KIAA0449 O75037 417 Y Homo sapiens(Human) KIF21B; KIAA0449 O75037 501 S Homo sapiens(Human) KIF21B; KIAA0449 O75037 562 S Homo sapiens(Human) KIF21B; KIAA0449 O75037 830 S Homo sapiens(Human) KIF21B; KIAA0449 O75037 932 T Homo sapiens(Human)

PTM - PhosphositePlus UniProt ID MOD_RSD Type SITE_+/-7_AA O75037 K702-ac Acetylation MECYTEEkANKIKAD O75037 R1201-m1 Methylation RTVsLPTrGSTFPRQ O75037 Y417-p Phosphorylation GEDGAEGySDLFREN O75037 S501-p Phosphorylation ESEAMNEsLRRSLSR O75037 S562-p Phosphorylation EVRQRRKsPEKEAFK O75037 S739-p Phosphorylation ARLLKNQsRYERELK O75037 S830-p Phosphorylation RRLAKPMsERVAGRA O75037 T932-p Phosphorylation DIVMQRMtIVNLEAD O75037 S1137-p Phosphorylation HDDFKFKsEPKLSAQ O75037 S1149-p Phosphorylation SAQMKAVsAECLGPP O75037 S1167-p Phosphorylation STKNITKsLASLVEI O75037 S1197-p Phosphorylation DRVSRTVsLPTrGST O75037 S1215-p Phosphorylation QSRATETsPLTRRKs O75037 S1222-p Phosphorylation sPLTRRKsYDRGQPI O75037 T1237-p Phosphorylation RSTDVGFtPPssPPt O75037 S1240-p Phosphorylation DVGFtPPssPPtRPR O75037 S1241-p Phosphorylation VGFtPPssPPtRPRN O75037 T1244-p Phosphorylation tPPssPPtRPRNDRN O75037 S1258-p Phosphorylation NVFSRLTsNQsQGSA O75037 S1261-p Phosphorylation SRLTsNQsQGSALDK O75037 S1269-p Phosphorylation QGSALDKsDDsDSsL O75037 S1272-p Phosphorylation ALDKsDDsDSsLSEV O75037 S1275-p Phosphorylation KsDDsDSsLSEVLRG O75037 S1285-p Phosphorylation EVLRGIIsPVGGAKG O75037 S1421-p Phosphorylation QINQIALsPSGTMLY O75037 T1490-p Phosphorylation FELGECVtGTIGPTH O75037 K1051-ub Ubiquitination KGLQVAQkEAQIRLL

PTM - dbPTM UniProt ID Position Code Type Resources References O75037 1237 T Phosphorylation Swiss-Prot 1010711 18669648;19690332 O75037 1241 S Phosphorylation Swiss-Prot 1010711 19690332 O75037 1244 T Phosphorylation Swiss-Prot 1010711 18669648 O75037 1241 S Phosphorylation PhosphoELM.10011 18669648 O75037 1237 T Phosphorylation PhosphoELM.10011 18669648 O75037 1244 T Phosphorylation PhosphoELM.10011 18669648 O75037 1149 S Phosphorylation Phosphositeplus.1010730 22115753 O75037 1167 S Phosphorylation Phosphositeplus.1010730 21406692;22115753 O75037 1241 S Phosphorylation Phosphositeplus.1010730 19690332;22115753 O75037 1269 S Phosphorylation Phosphositeplus.1010730 22115753 O75037 1272 S Phosphorylation Phosphositeplus.1010730 22115753 O75037 1237 T Phosphorylation Phosphositeplus.1010730 18669648;19690332;21406692;22115753 O75037 932 T Phosphorylation Phosphositeplus.1010730 21406692 O75037 1241 S Phosphorylation HPRD 9.0 18669648 O75037 1237 T Phosphorylation HPRD 9.0 18669648 O75037 1244 T Phosphorylation HPRD 9.0 18669648

PTM - HPRD Symbol Position Code Type References KIF21B 1237 T Phosphorylation 18669648 KIF21B 1241 S Phosphorylation 18669648 KIF21B 1244 T Phosphorylation 18669648

PTM - Phospho.ELM UniProt Position Code PMIDs Kinase Source Type O75037 1241 S 18669648 HTP Phosphorylation O75037 1244 T 18669648 HTP Phosphorylation O75037 1237 T 18669648 HTP Phosphorylation

PTM - UniProt UniProt ID Position Type PMIDs O75037 1149 Phosphoserine 23186163 O75037 1167 Phosphoserine 21406692;23186163 O75037 1215 Phosphoserine 23186163 O75037 1237 Phosphothreonine 18669648;19690332;21406692 O75037 1241 Phosphoserine 19690332