PTM - CPLM Gene Name UniProt ID Type Position Code TRIM21; RNF81; RO52; SSA1 P19474 Ubiquitination 260 K

PTM - dbPAF Gene Name UniProt ID Position Type Species TRIM21; RNF81; RO52; SSA1 P19474 265 T Homo sapiens(Human) TRIM21; RNF81; RO52; SSA1 P19474 266 S Homo sapiens(Human) TRIM21; RNF81; RO52; SSA1 P19474 393 Y Homo sapiens(Human) TRIM21; RNF81; RO52; SSA1 P19474 447 S Homo sapiens(Human) TRIM21; RNF81; RO52; SSA1 P19474 469 S Homo sapiens(Human)

PTM - PhosphositePlus UniProt ID MOD_RSD Type SITE_+/-7_AA P19474 K138-m1 Methylation AAQEYQEkLQVALGE P19474 R324-m1 Methylation SIPGNEErFDSYPMV P19474 S256-p Phosphorylation IVLERSEsWNLkDLD P19474 S266-p Phosphorylation LkDLDITsPELRSVC P19474 S362-p Phosphorylation DLGVCRDsVRRKGHF P19474 Y393-p Phosphorylation QKYEAGTyPQTPLHL P19474 S447-p Phosphorylation GPLRPFFsPGFNDGG P19474 S469-p Phosphorylation LCPLNIGsQGSTDY_ P19474 K260-ub Ubiquitination RSEsWNLkDLDITsP

PTM - dbPTM UniProt ID Position Code Type Resources References P19474 266 S Phosphorylation Swiss-Prot 1010711 18669648 P19474 266 S Phosphorylation PhosphoELM.10011 18669648 P19474 324 R Methylation Phosphositeplus.1010730 18247584 P19474 138 K Methylation Phosphositeplus.1010730 18247584 P19474 266 S Phosphorylation Phosphositeplus.1010730 18669648;20068231;21406692 P19474 393 Y Phosphorylation Phosphositeplus.1010730 22479513 P19474 266 S Phosphorylation HPRD 9.0 17322306,18669648,20068231 P19474 266 S Phosphorylation SysPTM 1.1 18669648

PTM - HPRD Symbol Position Code Type References TRIM21 266 S Phosphorylation 17322306,18669648,20068231

PTM - Phospho.ELM UniProt Position Code PMIDs Kinase Source Type P19474 266 S 18669648 HTP Phosphorylation

PTM - UniProt UniProt ID Position Type PMIDs P19474 266 Phosphoserine 18669648;20068231;21406692;23186163

PTM - PHOSIDA Symbol Accession Code Position Surrounding Sequence Type TRIM21 IPI00018971 S 268 KDLDITpSPELRSV phosphorylation

PTM - BioGRID Entrez Gene BioGRID ID Position Code Type PMIDs 6737 112615 - K Ubiquitination 18312418 6737 112615 - K Ubiquitination 12127959 6737 112615 - K Ubiquitination 16403452 6737 112615 - K Ubiquitination 16335966 6737 112615 - K Ubiquitination 21183682 6737 112615 - K Ubiquitination 19201866 6737 112615 - K Ubiquitination 21987572 6737 112615 - K Ubiquitination 22505724 6737 112615 - K FAT10ylation 22797925 6737 112615 - K FAT10ylation 23862649 6737 112615 - K Ubiquitination 24816145 6737 112615 - K Ubiquitination 16297862 6737 112615 - K Ubiquitination 16316627