PTM - CPLM Gene Name UniProt ID Type Position Code USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 Ubiquitination 331 K USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 Ubiquitination 194 K USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 Ubiquitination 19 K USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 Ubiquitination 835 K USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 Ubiquitination 803 K USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 Ubiquitination 203 K USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 Ubiquitination 487 K USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 Ubiquitination 425 K USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 Ubiquitination 906 K

PTM - dbPAF Gene Name UniProt ID Position Type Species USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 103 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 104 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 105 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 112 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 132 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 134 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 206 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 207 Y Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 211 T Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 212 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 214 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 227 Y Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 258 T Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 263 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 265 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 266 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 277 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 279 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 285 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 304 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 305 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 309 T Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 333 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 339 T Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 341 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 368 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 371 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 372 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 373 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 377 T Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 390 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 394 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 406 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 407 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 408 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 413 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 420 S Homo sapiens(Human) USP20; KIAA1003; LSFR3A; VDU2 Q9Y2K6 430 S Homo sapiens(Human)

PTM - PhosphositePlus UniProt ID MOD_RSD Type SITE_+/-7_AA Q9Y2K6 K553-m1 Methylation FFAADELkGDNMYSC Q9Y2K6 S103-p Phosphorylation LAAPLLGsSSKFSEQ Q9Y2K6 S112-p Phosphorylation SKFSEQDsPPPSHPL Q9Y2K6 S132-p Phosphorylation AVADEGEsEsEDDDL Q9Y2K6 S134-p Phosphorylation ADEGEsEsEDDDLKP Q9Y2K6 S206-p Phosphorylation VWHKKRPsYVVPTSL Q9Y2K6 Y227-p Phosphorylation VNPMFRGyAQQDTQE Q9Y2K6 S263-p Phosphorylation ALTEARDsDssDTDE Q9Y2K6 S265-p Phosphorylation TEARDsDssDTDEKR Q9Y2K6 S266-p Phosphorylation EARDsDssDTDEKRE Q9Y2K6 S277-p Phosphorylation EKREGDRsPsEDEFL Q9Y2K6 S279-p Phosphorylation REGDRsPsEDEFLsC Q9Y2K6 S285-p Phosphorylation PsEDEFLsCDSSSDR Q9Y2K6 S305-p Phosphorylation QGRGGGSsQAETELL Q9Y2K6 S333-p Phosphorylation RMKDRKFsWGQQRtN Q9Y2K6 T339-p Phosphorylation FsWGQQRtNsEQVDE Q9Y2K6 S341-p Phosphorylation WGQQRtNsEQVDEDA Q9Y2K6 S368-p Phosphorylation PAEAQPPsPRsssPC Q9Y2K6 S371-p Phosphorylation AQPPsPRsssPCRtP Q9Y2K6 S372-p Phosphorylation QPPsPRsssPCRtPE Q9Y2K6 S373-p Phosphorylation PPsPRsssPCRtPEP Q9Y2K6 T377-p Phosphorylation RsssPCRtPEPDNDA Q9Y2K6 S390-p Phosphorylation DAHLRSSsRPCsPVH Q9Y2K6 S394-p Phosphorylation RSSsRPCsPVHHHEG Q9Y2K6 S406-p Phosphorylation HEGHAKLsssPPRAs Q9Y2K6 S407-p Phosphorylation EGHAKLsssPPRAsP Q9Y2K6 S408-p Phosphorylation GHAKLsssPPRAsPV Q9Y2K6 S413-p Phosphorylation sssPPRAsPVRMAPs Q9Y2K6 S420-p Phosphorylation sPVRMAPsyVLKkAQ Q9Y2K6 Y421-p Phosphorylation PVRMAPsyVLKkAQV Q9Y2K6 S430-p Phosphorylation LKkAQVLsAGSRRRK Q9Y2K6 S854-p Phosphorylation RIAQVKGsGHVQLKQ Q9Y2K6 K425-ub Ubiquitination APsyVLKkAQVLsAG Q9Y2K6 K906-ub Ubiquitination ENLHGEQkIEAETRA

PTM - dbPTM UniProt ID Position Code Type Resources References Q9Y2K6 132 S Phosphorylation Swiss-Prot 1010711 17081983;18669648;18691976;19690332 Q9Y2K6 134 S Phosphorylation Swiss-Prot 1010711 17081983;18669648;18691976;19690332 Q9Y2K6 258 T Phosphorylation Swiss-Prot 1010711 17081983 Q9Y2K6 263 S Phosphorylation Swiss-Prot 1010711 17081983 Q9Y2K6 368 S Phosphorylation Swiss-Prot 1010711 19690332 Q9Y2K6 373 S Phosphorylation Swiss-Prot 1010711 18669648 Q9Y2K6 377 T Phosphorylation Swiss-Prot 1010711 18669648 Q9Y2K6 406 S Phosphorylation Swiss-Prot 1010711 18669648 Q9Y2K6 407 S Phosphorylation Swiss-Prot 1010711 18691976 Q9Y2K6 413 S Phosphorylation Swiss-Prot 1010711 18669648;18691976 Q9Y2K6 132 S Phosphorylation PhosphoELM.10011 18669648;17081983 Q9Y2K6 134 S Phosphorylation PhosphoELM.10011 18669648;17081983 Q9Y2K6 373 S Phosphorylation PhosphoELM.10011 18669648;17081983 Q9Y2K6 406 S Phosphorylation PhosphoELM.10011 18669648 Q9Y2K6 407 S Phosphorylation PhosphoELM.10011 18669648 Q9Y2K6 413 S Phosphorylation PhosphoELM.10011 18669648 Q9Y2K6 377 T Phosphorylation PhosphoELM.10011 18669648;17081983 Q9Y2K6 132 S Phosphorylation Phosphositeplus.1010730 17081983;18669648;18691976;19276368;19690332;20068231;20164059;20363803;21406692;21659604;22115753 Q9Y2K6 134 S Phosphorylation Phosphositeplus.1010730 17081983;18669648;18691976;19276368;19690332;20068231;20164059;20363803;21406692;21659604;22115753 Q9Y2K6 265 S Phosphorylation Phosphositeplus.1010730 20363803 Q9Y2K6 333 S Phosphorylation Phosphositeplus.1010730 19276368 Q9Y2K6 341 S Phosphorylation Phosphositeplus.1010730 19690332 Q9Y2K6 368 S Phosphorylation Phosphositeplus.1010730 19690332 Q9Y2K6 407 S Phosphorylation Phosphositeplus.1010730 18691976 Q9Y2K6 408 S Phosphorylation Phosphositeplus.1010730 19276368;20363803 Q9Y2K6 413 S Phosphorylation Phosphositeplus.1010730 18669648;18691976;19276368;20363803;22115753 Q9Y2K6 339 T Phosphorylation Phosphositeplus.1010730 19690332 Q9Y2K6 377 T Phosphorylation Phosphositeplus.1010730 18669648 Q9Y2K6 227 Y Phosphorylation Phosphositeplus.1010730 18083107;18180459 Q9Y2K6 132 S Phosphorylation HPRD 9.0 17081983,18669648,18691976,19651622,20068231 Q9Y2K6 134 S Phosphorylation HPRD 9.0 17081983,18669648,18691976,19651622,20068231 Q9Y2K6 263 S Phosphorylation HPRD 9.0 17081983 Q9Y2K6 372 S Phosphorylation HPRD 9.0 17081983 Q9Y2K6 373 S Phosphorylation HPRD 9.0 17081983,18669648 Q9Y2K6 406 S Phosphorylation HPRD 9.0 18669648 Q9Y2K6 407 S Phosphorylation HPRD 9.0 18669648,18691976 Q9Y2K6 413 S Phosphorylation HPRD 9.0 18669648,18691976 Q9Y2K6 258 T Phosphorylation HPRD 9.0 17081983 Q9Y2K6 377 T Phosphorylation HPRD 9.0 18669648 Q9Y2K6 132 S Phosphorylation SysPTM 1.1 17081983;18669648;18691976 Q9Y2K6 134 S Phosphorylation SysPTM 1.1 17081983;18669648;18691976 Q9Y2K6 263 S Phosphorylation SysPTM 1.1 17081983 Q9Y2K6 371 S Phosphorylation SysPTM 1.1 17081983 Q9Y2K6 372 S Phosphorylation SysPTM 1.1 17081983 Q9Y2K6 373 S Phosphorylation SysPTM 1.1 17081983;18669648 Q9Y2K6 406 S Phosphorylation SysPTM 1.1 18669648 Q9Y2K6 407 S Phosphorylation SysPTM 1.1 18691976 Q9Y2K6 413 S Phosphorylation SysPTM 1.1 18669648;18691976 Q9Y2K6 258 T Phosphorylation SysPTM 1.1 17081983 Q9Y2K6 377 T Phosphorylation SysPTM 1.1 18669648

PTM - HPRD Symbol Position Code Type References USP20 132 S Phosphorylation 17081983,18669648,18691976,19651622,20068231 USP20 134 S Phosphorylation 17081983,18669648,18691976,19651622,20068231 USP20 258 T Phosphorylation 17081983 USP20 263 S Phosphorylation 17081983 USP20 372 S Phosphorylation 17081983 USP20 373 S Phosphorylation 17081983,18669648 USP20 377 T Phosphorylation 18669648 USP20 406 S Phosphorylation 18669648 USP20 407 S Phosphorylation 18669648,18691976 USP20 413 S Phosphorylation 18669648,18691976

PTM - Phospho.ELM UniProt Position Code PMIDs Kinase Source Type Q9Y2K6 407 S 18669648 HTP Phosphorylation Q9Y2K6 134 S 18669648 HTP Phosphorylation Q9Y2K6 134 S 17081983 HTP Phosphorylation Q9Y2K6 377 T 18669648 HTP Phosphorylation Q9Y2K6 377 T 17081983 HTP Phosphorylation Q9Y2K6 132 S 18669648 HTP Phosphorylation Q9Y2K6 132 S 17081983 HTP Phosphorylation Q9Y2K6 413 S 18669648 HTP Phosphorylation Q9Y2K6 373 S 18669648 HTP Phosphorylation Q9Y2K6 373 S 17081983 HTP Phosphorylation Q9Y2K6 406 S 18669648 HTP Phosphorylation

PTM - UniProt UniProt ID Position Type PMIDs Q9Y2K6 112 Phosphoserine 23186163 Q9Y2K6 132 Phosphoserine 18691976;21406692;23186163;24275569 Q9Y2K6 134 Phosphoserine 18691976;21406692;23186163;24275569 Q9Y2K6 258 Phosphothreonine 17081983 Q9Y2K6 305 Phosphoserine 23186163 Q9Y2K6 377 Phosphothreonine 18669648;23186163 Q9Y2K6 408 Phosphoserine 23186163 Q9Y2K6 413 Phosphoserine 18669648;23186163

PTM - PHOSIDA Symbol Accession Code Position Surrounding Sequence Type USP20 IPI00328285 S 132 VADEGEpSESEDDD phosphorylation USP20 IPI00328285 S 134 DEGESEpSEDDDLK phosphorylation USP20 IPI00328285 S 263 LTEARDpSDSSDTD phosphorylation USP20 IPI00328285 S 373 PSPRSSpSPCRTPE phosphorylation USP20 IPI00328285 S 407 GHAKLSpSSPPRAS phosphorylation USP20 IPI00328285 S 413 SSPPRApSPVRMAP phosphorylation USP20 IPI00328285 T 258 VATVALpTEARDSD phosphorylation USP20 IPI00328285 T 377 SSSPCRpTPEPDND phosphorylation

PTM - BioGRID Entrez Gene BioGRID ID Position Code Type PMIDs 10868 116077 - K Ubiquitination 22118674