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Liu J, Hao Y, Wang C, Jin Y, Yang Y, Gu J, Chen X. An Optimized Isotopic Photocleavable Tagging Strategy for Site-Specific and Quantitative Profiling of Protein O-GlcNAcylation in Colorectal Cancer Metastasis. ACS chemical biology 2022 17(3) 35254053
Abstract:
O-linked-β-N-acetylglucosamine (O-GlcNAc) glycosylation is a ubiquitous protein post-translational modification of the emerging importance in metazoans. Of the thousands of O-GlcNAcylated proteins identified, many carry multiple modification sites with varied stoichiometry. To better match the scale of O-GlcNAc sites and their dynamic nature, we herein report an optimized strategy, termed isotopic photocleavable tagging for O-GlcNAc profiling (isoPTOP), which enables quantitative and site-specific profiling of O-GlcNAcylation with excellent specificity and sensitivity. In HeLa cells, ∼1500 O-GlcNAcylation sites were identified with the optimized procedures, which led to quantification of ∼1000 O-GlcNAcylation sites with isoPTOP. Furthermore, we apply isoPTOP to probe the O-GlcNAcylation dynamics in a pair of colorectal cancer (CRC) cell lines, SW480 and SW620 cells, which represent primary carcinoma and metastatic cells, representatively. The stoichiometric differences of 625 O-GlcNAcylation sites are quantified. Of these quantified sites, many occur on important regulators involved in tumor progression and metastasis. Our results provide a valuable database for understanding the functional role of O-GlcNAc in CRC. IsoPTOP should be applicable for investigating O-GlcNAcylation dynamics in various pathophysiological processes.
O-GlcNAc proteins:
A0A0B4J203, A0A0C4DFX4, RBM47, E2F8, WDR27, SBNO1, CNOT1, P121B, P121C, H0YAE9, H0YHG0, H7C469, K7ELQ4, M0QZ24, PDLI1, HAX1, TAF4, BCL9, CAC1A, DDX3X, NFIB, PPP6, MA2B1, ARI1A, SOCS7, ABLM1, KMT2D, GBRD, RGRF2, TX1B3, HGS, MYPT1, SYN3, ZN609, TRI66, PDZD2, MAST4, SC16A, SET1A, CASC3, FOXP2, MOT4, P4HA2, ARPC5, CLOCK, MAFG, PER1, KDM6A, TET3, SI1L1, TGFI1, M3K7, MCA3, PRPF3, TPD54, SYNJ1, IF4G3, E41L2, WIPF1, FOXO3, TGM5, RNF13, SPY2, PLRG1, ZN207, AKAP8, CALU, ORC5, MYPT2, GANP, OGA, CCNT1, BUB1B, PLOD3, PLIN3, MOT2, MAFK, PQBP1, BRD4, TBL1X, PP1RB, NBN, MITF, SRGP2, N4BP1, ROCK2, PP6R2, CNOT3, ANR17, FLNB, NCOR1, SF3B1, REM1, CREG1, CRTAP, SYUG, CYTF, TOX4, TOX, SUN1, PCF11, AGFG2, UBE4B, CAC1H, SVIL, SC24A, SC24B, CNOT4, EYA4, ZMYM6, BAG3, LATS1, DDAH2, TXD12, ONEC2, CLPT1, ABL1, CRYAB, LMNA, TFR1, CATA, GBA1, FUCO, ALDOA, GCR, G3P, CPNS1, HSPB1, RLA2, RLA0, ITB1, K1C18, NPM, CATL1, CATB, MCR, BGLR, ITA5, NFIC, VIME, SNRPA, FGR, ATX1L, DERPC, ZN865, GLI2, MYBB, CLUS, PPAL, MPRI, PABP1, TPR, BMP3, SKIL, ENPL, PO2F1, PLAK, ATF2, ZEP1, RS2, TFE2, F261, ITB4, ZNF23, ZNF25, JUNB, ATF7, TPH1, DDX5, EGR1, SON, NELFE, ATF1, ATF6A, CADH2, ICAL, CSRP1, FLNA, RFX1, CBL, SFPQ, COF1, IF4B, GATA2, APC, DDX6, ARNT, MAP4, LYOX, HXD9, MZF1, CLIP1, 5HT1F, HXA11, ZEP2, ELF1, CTNB1, FBN1, ADDA, BASI, NU214, VGFR2, SRP14, NUP62, SYUA, VATA, CUX1, TXLNA, STAT3, LAP2A, EPS15, HELZ, MATR3, SSRA, SSRB, KI67, ATRX, MAP1B, YAP1, UTRN, STT3A, SC6A8, RFX5, SOX2, PRC2A, HSP13, NR2C2, NASP, CDK8, DHE4, YLPM1, NU153, RBP2, TAF6, MRE11, EMD, MXI1, MAP2, TOB1, PPT1, TCPQ, PAPOA, HCFC1, GDS1, AGFG1, CRIP2, NUP98, SMTN, SC24C, HIRA, ATX1, ATN1, AFAD, AF10, AF17, DSRAD, SEC13, NU107, ZN445, CSN2, RL37, WDR5, TIM10, F193A, RBM6, PITX1, IF4G2, PHC1, ADA17, KGD4, RL19, FOXK1, DAB2, RHG04, RBM10, HNRPU, SPTB2, FOXK2, RUNX1, MEF2A, SP2, SP3, PLOD1, KMT2A, TF65, IF4G1, NOTC2, TLE3, TLE4, PTN12, CALD1, MEF2C, P5F1B, GABPA, ZO1, ACK1, EP300, AHNK, FCHO2, HMGX3, SRBP2, FOXO1, ASPH, TROAP, BPTF, FSTL1, NFIA, DPYD, TP53B, FOXC1, ECH1, ROA0, DDX10, TBX2, GPS2, G3BP1, PABP4, ADAM9, PICAL, NAB1, SERC3, RIPK1, IQGA2, STIM1, CUL4B, ASPP2, CAC1S, RUNX2, NFYC, CDK13, TOB2, VEZF1, UBP2L, GIT2, SRC8, CAPR1, LAGE3, PUM1, MDC1, EPN4, TTLL4, RRP1B, NCOA6, GSE1, MEF2D, LASP1, MYPC3, ZN638, NUMA1, SART3, CND1, R3HD1, KIF14, WDR43, PLCL1, PLEC, NOMO1, NONO, RCN1, RYR3, KS6A1, RBMS2, TAF1C, SF01, MED1, JHD2C, TRIP6, T22D1, ELF2, TAB1, HERC1, NCOA1, VAS1, ZFHX3, ZYX, ADRM1, SYPL1, TAF9, DREB, DGKD, CGT, GEN, LY6K, RFX7, QSER1, AAK1, PRSR3, QRIC1, MA7D1, WDR72, TBRG1, TB10B, TPRN, FIL1L, SVEP1, AMOT, EPC2, CRTC2, PAN3, HS904, YIF1B, AG10A, IGS11, ZN628, BCORL, FIGN, K2026, SH319, TGO1, PRC2B, TOIP1, CEP78, P4R3B, HP1B3, CE170, ZN362, FKB15, AKND1, ZEP3, LRIF1, SWT1, RHG21, UBAP2, RBM26, DEP1A, OGRL1, AHDC1, F222A, RPRD2, RN220, ZN318, TASO2, ZMYM4, PAPD7, TENS2, KANK2, ARID2, USF3, RHG17, CYTSA, ANR40, BICRL, JADE1, PKHA7, NIPBL, LIN54, TET2, RINT1, CRCDL, ZNT6, TTC41, RHGBA, NFRKB, RSBNL, KCD18, NCEH1, MDEAS, ZC3HE, LARP1, NHS, CRTC3, SAS6, MCAF1, BCOR, MPRIP, DNMBP, GGYF2, THADA, BNC2, NFXL1, NBEL2, CO039, SRCAP, CBAR2, UBN2, XIRP1, RAPH1, LARP4, HAKAI, ASXL2, SPT6H, KDM3B, ZCCHV, KANL1, RGPD4, POGZ, ZFY16, NUFP2, MAVS, CLAP1, EMSY, I2BP2, SRGP1, RBBP6, SH3R1, HUWE1, YTHD3, NPM2, ILDR1, KAISO, MYPN, LDB1, LYRIC, BCL9L, LUZP1, NRAP, RTTN, PRSR1, DDX42, CEP57, CD20B, CACL1, P66A, HIPK1, KCC1D, RN135, MY18B, AHNK2, FOXP4, NAV3, NAV2, MISP, ARI3B, IPRI, TEX2, MGAP, CC28A, Z3H7A, ANKH1, SUGP1, RPAP2, MILK2, SRRM1, ZZZ3, GAR4, PHAR4, RTKN2, DCP1B, XRN1, PELP1, CKLF8, TENS4, SPART, RPTOR, NUP93, ZN687, DOCK4, RHG24, RUSC2, SYNPO, FNBP4, D2HDH, RP25L, ATPF2, CPSF7, ARFG1, ENAH, SPOT1, SUMF1, KCNH5, SLAI1, TNR6A, PHC3, DRC6, CBPC3, NAV1, VP37A, KMT2C, ZMIZ2, BD1L1, ARI1B, FLCN, NUP35, TOIP2, TNIP2, KNL1, OR2L2, PUM2, CC110, TBC15, STT3B, ZN507, ALMS1, DLG5, KCNV2, BRX1, DOT1L, GEMI5, PARD3, ZN384, SMAP2, IASPP, TM263, ZFN2B, NUDC2, PCNP, TRUB1, LMO7, ATX2L, PALLD, P66B, BBX, ZCH14, GBF1, SMG7, RTF1, NICA, PHF3, MAML1, ZN592, LAR4B, TFG, TAF4B, RREB1, SC65, CBP, SYMPK, DDX17, GPKOW, FUBP2, UBP7, LPP, LSM10, NCLN, MRTFA, FUBP1, TTC17, PBIP1, TTC28, TOM6, PF21A, INT12, REPS1, ESS2, MBD6, ELP4, SGF29, RBM33, ZN503, P121A, TONSL, PDLI5, ERO1A, DOCK6, FUBP3, RSRC1, ZN594, VCIP1, ZN462, LCOR, PDLI2, CLP1L, Z512B, ZFR, EP400, MRFL, H6ST2, TIGD1, NOL4L, DOCK7, RPR1A, RBM14, ADCYA, QKI, LENG8, TRNT1, PP1RA, PHF12, CIC, MED15, ERBIN, HMCN1, LMF1, PIGS, WRIP1, SIN3A, MINT, HTF4, EYA3, POP1, TEAD3, TTC1, CSN8, ATX2, ARI3A, ANM1, PKP2, TEP1, DPH2, WAC, DIDO1, HNRL1, RBM4, SSBP4, PRR14, SSBP3, YTHD1, KPCD2, ZCHC2, TB182, AMRA1, CE295, TANC1, ZC12C, CEP44, STRAB, SP130, BRD8, RGAP1, SMG9, APC1, I2BPL, TMX4, KI13A, WDR13, EPC1, ADNP, ZN106, TM245, FOXP1, PABP3, WNK1, E41L1, ZHX3, BICC1, PEAK1, PPR3E, ZN703, PKHA5, CLSPN, BCDO1, RC3H2, ZFYV1, TAF9B, EMAL4, ZBT20, NCOA5, TANC2, ZN532, NCK5L, TNR6C, CHD8, FBSL, APMAP, DMAP1, UBN1, DCP1A, INCE, ANLN, GEPH, PDLI7, TULP4, HOME2, SLX9, DIAP3, BMP2K, RBM12, STAU2, DDX28, CWC25, CARF, ETAA1, ABI2, HXC10, BCLF1, TAB2, CELR3, CDK12, GRHL1, SACS, ITSN2, BICRA, CNOT2, TMEM9, CAC1I, CAMP3, DAPLE, RCC2, DIP2B, MBD5, CT2NL, F135A, KANL3, RERE, SE1L1, TRM7, YM012, KDM5B, LIMD1, TCF20, SUN2, LIMA1, SEPT9, UBQL2, TRPS1, S30BP, NRBP, BAZ2B, SIX4, HOOK1, CDC23, TASOR, GMEB2, TNIK, PARP4, NUP50, ZHX1, CDV3, MCTS1, KCNH3, LRFN2, MRTFB, ZBT21, PRR12, YETS2, HECD1, ZMYD8, NOTC3, SPAT2, SOX13, G3BP2, MAGD2, MINP1, MACF1, CP131, SCAF8, TRI33, PHF8, LIMC1, TNR6B, SRRM2, SCML2, ZN148, POLH, INVS, ICE1, R3HD2, MAN1, TR150, WBP11, ZN281, STA13, WNK2, HBS1L, ARIP4, MTCL1, DCAF1, RPGF2, IRS2, CRBG1, HYOU1, SAM50, PRC2C, YTHD2, NCOR2, GMEB1, DC1L1, EPN1, NCOA3, ZHX2, S23IP, U3KPZ7, V9GYH0
Species: Homo sapiens
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Poulose N, Forsythe N, Polonski A, Gregg G, Maguire S, Fuchs M, Minner S, Sauter G, McDade SS, Mills IG. VPRBP Functions Downstream of the Androgen Receptor and OGT to Restrict p53 Activation in Prostate Cancer. Molecular cancer research : MCR 2022 20(7) 35348747
Abstract:
Androgen receptor (AR) is a major driver of prostate cancer initiation and progression. O-GlcNAc transferase (OGT), the enzyme that catalyzes the covalent addition of UDP-N-acetylglucosamine (UDP-GlcNAc) to serine and threonine residues of proteins, is often highly expressed in prostate cancer with its expression correlated with high Gleason score. In this study, we have identified an AR and OGT coregulated factor, Vpr (HIV-1) binding protein (VPRBP) also known as DDB1 and CUL4 Associated Factor 1 (DCAF1). We show that VPRBP is regulated by the AR at the transcript level, and stabilized by OGT at the protein level. VPRBP knockdown in prostate cancer cells led to a significant decrease in cell proliferation, p53 stabilization, nucleolar fragmentation, and increased p53 recruitment to the chromatin. In human prostate tumor samples, VPRBP protein overexpression correlated with AR amplification, OGT overexpression, a shorter time to postoperative biochemical progression and poor clinical outcome. In clinical transcriptomic data, VPRBP expression was positively correlated with the AR and also with AR activity gene signatures.
O-GlcNAc proteins:
DCAF1
Species: Homo sapiens
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Ramirez DH, Yang B, D'Souza AK, Shen D, Woo CM. Truncation of the TPR domain of OGT alters substrate and glycosite selection. Analytical and bioanalytical chemistry 2021 413(30) 34725712
Abstract:
O-GlcNAc transferase (OGT) is an essential enzyme that installs O-linked N-acetylglucosamine (O-GlcNAc) to thousands of protein substrates. OGT and its isoforms select from these substrates through the tetratricopeptide repeat (TPR) domain, yet the impact of truncations to the TPR domain on substrate and glycosite selection is unresolved. Here, we report the effects of iterative truncations to the TPR domain of OGT on substrate and glycosite selection with the model protein GFP-JunB and the surrounding O-GlcNAc proteome in U2OS cells. Iterative truncation of the TPR domain of OGT maintains glycosyltransferase activity but alters subcellular localization of OGT in cells. The glycoproteome and glycosites modified by four OGT TPR isoforms were examined on the whole proteome and a single target protein, GFP-JunB. We found the greatest changes in O-GlcNAc on proteins associated with mRNA splicing processes and that the first four TPRs of the canonical nucleocytoplasmic OGT had the broadest substrate scope. Subsequent glycosite analysis revealed that alteration to the last four TPRs corresponded to the greatest shift in the resulting O-GlcNAc consensus sequence. This dataset provides a foundation to analyze how perturbations to the TPR domain and expression of OGT isoforms affect the glycosylation of substrates, which will be critical for future efforts in protein engineering of OGT, the biology of OGT isoforms, and diseases associated with the TPR domain of OGT.
O-GlcNAc proteins:
UBA6, SBNO1, CNOT1, SMHD1,