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Lin CH, Liao CC, Wang SY, Peng CY, Yeh YC, Chen MY, Chou TY. Comparative O-GlcNAc Proteomic Analysis Reveals a Role of O-GlcNAcylated SAM68 in Lung Cancer Aggressiveness. Cancers 2022 14(1) 35008409
Abstract:
O-GlcNAcylation is a reversible and dynamic post-translational protein modification catalyzed by O-GlcNAc transferase (OGT). Despite the reported association of O-GlcNAcylation with cancer metastasis, the O-GlcNAc proteome profile for cancer aggressiveness remains largely uncharacterized. Here, we report our comparative O-GlcNAc proteome profiling of two differentially invasive lung adenocarcinoma cell lines, which identified 158 down-regulated and 106 up-regulated candidates in highly invasive cells. Among these differential proteins, a nuclear RNA-binding protein, SAM68 (SRC associated in mitosis of 68 kDa), was further investigated. Results showed that SAM68 is O-GlcNAcylated and may interact with OGT in the nucleus. Eleven O-GlcNAcylation sites were identified, and data from mutant analysis suggested that multiple serine residues in the N-terminal region are important for O-GlcNAcylation and the function of SAM68 in modulating cancer cell migration and invasion. Analysis of clinical specimens found that high SAM68 expression was associated with late cancer stages, and patients with high-OGT/high-SAM68 expression in their tumors had poorer overall survival compared to those with low-OGT/low-SAM68 expression. Our study revealed an invasiveness-associated O-GlcNAc proteome profile and connected O-GlcNAcylated SAM68 to lung cancer aggressiveness.
O-GlcNAc proteins:
A0A024R7P5, A0A024R9E2, A0A087WWU8, A0A0A0MTS7, SHOT1, A8K3C3, A8K9J7, B7Z2Z8, B7Z596, D3DS63, E7ETM0, E7EVA0, F8VR77, H0YN18, H3BPE1, K7ERG4, PSD12, DFFA, PLOD2, PSDE, BIN1, TCRG1, ML12B, HGS, HNRDL, RPAC1, P4HA2, HNRPR, PLRG1, ZN207, BUB3, ACTN4, KDM1A, PLOD3, CPNE3, FLNB, NU155, GLRX3, MTA2, SC31A, UBE4B, TFR1, ANXA1, HSPB1, ITB1, DCUP, GELS, ENOA, NPM, TPM3, LDHB, ANXA2, TBB5, HNRPC, TPM2, ANXA6, 4F2, VIME, ANXA5, RSSA, ENOG, TPM1, PARP1, UBB, UBC, CH60, ACADM, G6PD, PCNA, KCRB, KCRU, ACTN1, XRCC6, EF2, KAP2, SYDC, AMPN, EZRI, NAGAB, HMGA1, ML12A, AOC1, ICAL, VATB2, FLNA, OSBP1, UBA1, GCSH, PSA1, PSA3, SYVC, TPP2, CLIP1, HNRH3, KINH, HSP74, RADI, MYH9, MYH10, ACTN2, ADDA, FUS, MYH11, RL4, ODO2, VATA, CAP2, GARS, MSH2, PRS6B, UBP5, RS9, MAP1B, IQGA1, KC1A, NASP, FAS, SYAC, NU153, HDGF, ACLY, SYYC, RD23A, PSMD4, TERA, EIF3B, IF6, PSA6, RS3A, HNRPK, 1433G, PP1B, PRS8, RL7A, PP2AB, RS6, RL10A, RS27A, RL40, 2ABA, TPM4, EF1A1, GTF2I, RAE1L, HNRPU, SPTB2, EWS, PLCB3, FKBP4, IF4G1, SSBP, 1433F, PUR1, PRDX1, KHDR1, ACTN3, PP2BA, ILF2, ACACA, CBX3, G3BP1, EIF3I, DC1I2, ROCK1, HDAC1, CUL1, NACA, SPTN1, SMC1A, GANAB, PSME4, SYK, PLEC, PP1R7, SC23A, SC23B, TSN, CIP4, MARE1, DDB1, CART, RBBP7, ACTBL, ST1C3, P4R3A, Q6IPH7, C2D1A, POTEE, SND1, CYFP1, MON2, MYH14, CAND1, ABCA7, LRC47, THMS1, CPSF7, GT251, PAIRB, ABCF1, Q8TDJ5, Q8WWH9, AGRV1, TCPW, TFG, STAM1, SNR40, VPS35, SIN3A, NIBA2, PSB7, TSNAX, DHRS6, RBM4, XRN2, SPTN4, SLK, MYG1, XPP1, UGGG1, CPSF2, NAGK, NUDT5, PRP19, UBQL1, PACN2, SNX6, NCKP1, HYOU1, LSM4, SNX5, S23IP, V9HVZ7, V9HW77
Species: Homo sapiens
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Woo CM, Lund PJ, Huang AC, Davis MM, Bertozzi CR, Pitteri SJ. Mapping and Quantification of Over 2000 O-linked Glycopeptides in Activated Human T Cells with Isotope-Targeted Glycoproteomics (Isotag). Molecular & cellular proteomics : MCP 2018 17(4) 29351928
Abstract:
Post-translational modifications (PTMs) on proteins often function to regulate signaling cascades, with the activation of T cells during an adaptive immune response being a classic example. Mounting evidence indicates that the modification of proteins by O-linked N-acetylglucosamine (O-GlcNAc), the only mammalian glycan found on nuclear and cytoplasmic proteins, helps regulate T cell activation. Yet, a mechanistic understanding of how O-GlcNAc functions in T cell activation remains elusive, partly because of the difficulties in mapping and quantifying O-GlcNAc sites. Thus, to advance insight into the role of O-GlcNAc in T cell activation, we performed glycosite mapping studies via direct glycopeptide measurement on resting and activated primary human T cells with a technique termed Isotope Targeted Glycoproteomics. This approach led to the identification of 2219 intact O-linked glycopeptides across 1045 glycoproteins. A significant proportion (>45%) of the identified O-GlcNAc sites lie near or coincide with a known phosphorylation site, supporting the potential for PTM crosstalk. Consistent with other studies, we find that O-GlcNAc sites in T cells lack a strict consensus sequence. To validate our results, we employed gel shift assays based on conjugating mass tags to O-GlcNAc groups. Notably, we observed that the transcription factors c-JUN and JUNB show higher levels of O-GlcNAc glycosylation and higher levels of expression in activated T cells. Overall, our findings provide a quantitative characterization of O-GlcNAc glycoproteins and their corresponding modification sites in primary human T cells, which will facilitate mechanistic studies into the function of O-GlcNAc in T cell activation.
O-GlcNAc proteins:
UBA6, ESYT2, HACL2, DEND3, SBNO1, XIRP2, CNOT1, PINLY, MT21E, SWAHB, P121B, TCAF2, MET15, F177B, P121C, GNAT3, MYO1G, SPT5H, TAF4, PK3CD, DNM1L, P3C2A, BT3A1, PSDE, BIN1, PITM1, DDX3X, RNT2, ARI1A, NCKP5, TRAD1, RHG33, ABLM1, KMT2D, IFIT3, HGS, MYPT1, S27A2, GAK, SC16A, SET1A, KDM6B, ARHGB, FYB1, ATX7, SHIP2, EIF3D, EIF3H, TOX3, NUP42, MEFV, DHX15, ZZEF1, PHF1, ZW10, PRPF3, TPD54, EMC8, SYNJ1, IF4G3, E41L2, WIPF1, LAT, OX1R, PLRG1, ZN207, ST1B1, LANC1, AKAP8, PLIN1, ZN292, AQR, GANP, HBP1, LY75, OGA, DIAP1, MAFK, HCN1, CCD22, BRD4, PP1RB, ABCB7, KI21B, LRP4, N4BP1, CPNE3, OBSL1, BRE1B, CAND2, T22D2, PP6R2, ANR17, H2AY, FLNB, NCOR1, PR40A, LRCH4, MPPB, PSIP1, NDUS3, KS6A5, MYCB2, U520, CCNK, CBPD, CYTF, LTN1, TOX4, PHF14, SUN1, PCF11, FRYL, TRI37, SC31A, CE152, AGFG2, SCAF4, SPN1, RTN3, APOL3, ATE1, CELF2, 6PGL, IPO7, CD2B2, ABCA1, SC24A, SC24B, PCNT, CNOT4, HERC2, HS74L, RIGI, M4K4, AIFM1, TXD12, LDHA, COX1, A1AT, FOS, LDLR, LMNA, ALBU, CYTB, GCR, HG2A, K2C1, G3P, HLAA, CPNS1, RPN1, RPN2, GNAI2, AT1A1, RLA2, JUN, ATPB, CD2, NPM, ANXA2, SYEP, TSP1, SP1, ANXA6, MDR1, HS90B, INHBA, ODPA, PTPRC, RU2B, HCK, VIME, GNAI3, ADA2A, HMGB1, ROA1, LKHA4, DERPC, F231L, GLI2, GRAB, RO60, RARB, HSP7C, EGR2, ODPB, LAMP1, SRF, FA5, IMDH2, TPR, SKI, ACTN1, K1C10, CEAM1, PLSL, GLU2B, HCLS1, PO2F1, RAC2, ATF2, FOSL2, PGCA, LEUK, CREB1, GDC, PECA1, MGMT, ZNF25, JUNB, UBF1, JUND, ATF7, PTN2, DDX5, EGR1, PTPRA, SON, RCC1, ATF1, ML12A, PLCG1, NUCL, NFKB1, LMNB1, CAN3, HNF1A, FLNA, TNAP3, PIMT, UBA1, ROA2, RFX1, CBL, QCR2, MAOM, SP100, NFYA, IF4B, AT2B4, RPB1, BRD2, ATPA, DDX6, PTBP1, ARNT, RFA1, APEX1, PYR1, CALR, MAP4, ERCC5, PTN6, SPB3, PDIA3, 2AAA, HLAF, HMOX2, CLIP1, RPB2, COR1A, ZEP2, HNRH3, HNRH1, STIP1, ELF1, KINH, LSP1, PHB1, PTN7, RFC4, MYH9, MYH10, COPB2, ACTN2, SOAT1, ADDA, FUS, NU214, ATP7B, MYH11, GLRX1, PPM1A, K22E, MP2K2, NUP62, GRP75, IF4A3, COIA1, STAT3, MDHM, ECHA, IF2G, PERI, ELK3, LAP2A, LAP2B, STAT1, RHG25, DPP6, HD, MATR3, GPDM, ZAP70, TNR4, VDAC2, MP2K4, NOP2, NOTC1, UTRN, IQGA1, STT3A, NPBW1, COPD, AGRE5, NASP, FAS, EFTU, CENPF, MA2A2, YLPM1, CLK1, NU153, RBP2, TAF6, GUAA, IDH3A, EMD, LRBA, AT1A2, MECP2, HCFC1, CCR3, KS6A3, LUM, ROA3, GDIR2, AGFG1, STAT2, TF2AA, CAZA1, NUP98, FOSB, SUCA, COPA, ITA8, SC24C, ATX1, UBP14, RD23B, EPHB3, AF17, CASP6, DSRAD, PSA, TPIS, SC61B, ACTB, ARF3, HNRPK, RS16, ACTA, GBB1, PPIA, RS27A, AP2B1, 1433Z, IF5A1, RACK1, ACTG, ACTS, TBA1B, TBA4A, PHC1, PRKDC, BTG2, SSBP2, ATL3, TXN4A, FOXK1, RHG04, NFKB2, SPTB2, FOXK2, RUNX1, AMPD2, CAP1, FLI1, OTUD4, PFKAP, SATB1, EWS, MEF2A, SP2, RHAG, SP4, SP3, RL18A, NUCB1, DYST, CREM, KMT2A, TF65, IF4G1, TLE3, TLE4, REL, UBE3A, GABPA, GABP1, CD69, ZO1, TLE5, DHX9, GOGA3, SLFN5, S38AB, RBBP4, NCBP1, AHNK, MN1, FOXO1, TBL3, TF3C1, AKP13, BPTF, NFIA, CHD3, TP53B, ANK3, PP1R8, AKAP6, ROA0, PAK2, TBX2, M3K1, ATM, DC1I2, IKZF1, TCOF, ROCK1, NFAC2, SMAD4, PICAL, PRP4B, SNW1, IQGA2, MTMR1, MTMR3, CUL4A, CUL4B, RUNX3, NFYC, KGP1, CDK13, IL16, CKAP5, CO4A6, VEZF1, MORC3, UBP2L, SCRIB, GIT2, DYHC1, ELOA1, FLNC, CAPR1, CASL, SCN5A, SEM3A, ITPR2, PLSI, LAGE3, PUM1, EPN4, RRP1B, NCOA6, LBR, STAT4, MEF2D, LASP1, NUMA1, GAPD1, SPCS2, SUZ12, ACAP1, R3HD1, SYK, ARHG6, ACAP2, BRD3, PLEC, L2GL1, EPHA7, SF3B3, RYR3, TAF5, MARE2, TSN, SF01, MED1, JHD2C, T22D1, ELF2, NAB2, TAB1, SPEG, USF2, ZFHX3, ZYX, SEPT7, ADRM1, PKN1, DDB1, TAF9, OBF1, NRF1, PTPRO, ZN827, EX3L4, HNRL2, AAK1, CCD57, QRIC1, PRTG, CEA16, TM249, FR1L6, LRRF1, EMAL3, UAP1L, GON4L, LARP7, EPC2, CRTC2, PAR10, TYW2, RHG15, H90B3, BCORL, ZN831, TGO1, DOC11, PRC2B, TOIP1, CEP78, CD158, TDIF2, KMCP1, ZN362, FKB15, ZEP3, ODAD2, MPP7, LRIF1, UBR4, UBAP2, GNTK, RBM26, CE350, RPRD2, AGAP9, MYOME, TASO2, RN213, GL8D1, PDPK2, BICRL, OTU7B, RGPA1, TWF2, SDE2, NIPBL, LIN54, ZN544, PPR18, ZCHC8, CDC73, ARMX5, SCYL2, NFRKB, LMOD2, LEG1H, TMM81, PDXD1, RSBNL, MDEAS, ZC3HE, LARP1, SCND3, POTEE, ZN322, ANR11, SPIT4, AFTIN, FIP1, CRTC3, MCAF1, PACS1, BCOR, DJC14, DG2L6, LR74B, OTOG, RHG36, YJ005, RHG27, TMTC3, UN13D, HAKAI, NOL8, HECW1, SPT6H, SND1, KDM3B, S26A9, DYM, PRS41, APTX, ZCCHV, SETX, NUP54, GLUCM, POGZ, MYH14, NUFP2, MAVS, HDGR2, EMSY, I2BP2, AB12B, DHB13, CMKMT, SRGP1, RBBP6, RHG30, NRARP, TCPR1, HUWE1, YTHD3, CENPV, ATL2, YRDC, GPAT4, ZFHX4, ABCAD, BCL9L, KIF27, LRRT3, IQGA3, VS10L, CEP57, FRAS1, CACL1, P66A, I2BP1, CRLF3, CRERF, DYH10, GID4, ARI3B, WDR75, MGAP, ANKH1, SUGP1, SUGP2, CCAR1, BAP18, PLPL6, CMIP, TIGD4, YAF2, IHO1, SRRM1, FANCM, CC116, A16A1, DCP1B, PELP1, WDFY3, ABCA7, LGI4, NUP93, LRC47, ABD12, FNBP4, GALT4, RN175, CARME, AF1L2, TAB3, CPSF7, EFNMT, MAGB6, LRTM2, KRI1, TTC29, POC5, LR75A, S43A3, SUMF2, NETO2, NF2IP, LS14A, MISSL, CA131, TNR6A, PHC3, SRFB1, SP20H, VP37A, PCAT1, DOCK8, SYNE1, ARI1B, ENASE, TET1, MYRIP, OR6K3, CFA61, THOC2, WDR36, GABP2, MARH1, ALMS1, PREX1, PKHO2, DYH3, DSCL1, DTX3L, NETO1, NEK7, MICA1, ATS18, RN128, SNX29, SMCR8, ZN384, HASP, SMAP2, SCFD1, LMO7, ATX2L, PHIP, RUFY2, CSKI1, MADD, AGRV1, SYNE2, MUC16, P66B, AUTS2, BBX, TITIN, CTTB2, GBF1, SMG7, SNX19, PHF3, HS105, ZN592, HMHA1, TFG, TAF4B, CBP, KAT6A, SYMPK, SHIP1, DDX17, TANK, RAD50, CELF1, SMRD2, RAB8B, FUBP2, DVL3, LPP, TATD2, AT2A3, MRTFA, PLPL2, SH3K1, PF21A, DOC10, INT12, ACSF2, GCP3, SLAF6, RSPRY, MTEF3, SIR1, THA11, GLT14, CERS2, SYMM, PDLI5, FUBP3, PP16A, COG3, VCIP1, CHAP1, PDLI2, ANCHR, UBP47, Z512B, ZFR, EP400, CNO6L, CA074, PRRC1, ZN512, CNT3B, LRRC7, ARAP1, AGRA2, INP4A, RBM14, NED4L, LENG8, TRNT1, MCCA, PCX1, CCNL2, SIN3A, SEBP2, MINT, HTF4, CDC5L, EYA3, LGMN, MNT, SCAFB, TTC1, OSMR, ATX2, METH, ACON, CPNE1, TBA1C, MBB1A, GPTC1, ERP44, ESYT1, CCM2, FUZZY, DIDO1, MCMBP, CABL2, NDC1, PAXX, HNRL1, NUP58, RIOK2, THIC, RBM4, NADAP, SSBP3, NAA15, AP1M1, M10L1, YTHD1, BACH2, PANK2, PC11Y, ASPC1, UCK2, TRI31, UNK, FTO, AMRA1, CE295, DRC3, SP130, BRD8, CSTFT, ZCPW1, LMA2L, CK054, SLIK2, CSRN2, I2BPL, VPS16, EPC1, ADNP, IPYR2, FOXP1, PTN23, WNK1, AMPB, E41L1, GSX1, ELOV6, CH033, VISTA, SFR19, GORS2, LN28A, MLXIP, GBB4, PKHA1, RISC, TAF9B, MRM3, ZBT20, NCOA5, TANC2, TNR6C, CHD8, AT131, VTA1, SYSM, UBN1, DCP1A, KI13B, PRD10, XPP1, PDLI7, DDX21, MBNL1, SIR7, TULP4, ABCBA, LATS2, UBQL4, THSD1, CENPM, PDS5B, RBM12, MED9, SLTM, MIC19, NSMA3, THUM1, CARF, SNTG2, MTMR4, TE2IP, TAB2, CDK12, GGA3, ITSN2, BICRA, CNOT2, TMOD2, THYN1, PDP1, VAPA, TEN3, CHD7, DYH1, SYLC, KLH42, KANL3, RERE, HDC, TRPC4, MALT1, ADDG, TCF20, NDRG3, SUN2, NDOR1, UBQL2, S30BP, RPGFL, AGRE2, NRBP, BAZ2A, HOOK1, S2513, TASOR, AKA11, GMEB2, PARP4, C8AP2, IKZF2, ACINU, CNO11, AT7L1, K1210, YETS2, HECD1, NOTC3, PRP19, UBQL1, FAF1, PPIE, DIM1, MACF1, SCAF8, SET1B, JIP3, ZC3H4, SRRM2, CLCA2, SMC3, ZN148, MTMR6, ENTP4, SAC2, MAST1, FYV1, WDR37, TR150, ZN281, FBX7, 3BP1, OR2W1, NOC2L, SAMH1, DMXL1, ARIP4, MTCL1, RIPR2, PKHM1, RPGF2, CRBG1, PRC2C, YTHD2, SP16H, ANGL3, PCDG3, SNX13, NUBP2, NCOR2, COPG1, GMEB1, DC1L1, ROBO1, NCOA3, M3K4, PCLO, CAN7, SCC4, ZHX2, S23IP
Species: Homo sapiens
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Zhang W, Liu T, Dong H, Bai H, Tian F, Shi Z, Chen M, Wang J, Qin W, Qian X. Synthesis of a Highly Azide-Reactive and Thermosensitive Biofunctional Reagent for Efficient Enrichment and Large-Scale Identification of O-GlcNAc Proteins by Mass Spectrometry. Analytical chemistry 2017 89(11) 28510447
Abstract:
O-linked β-N-acetylglucosamine (O-GlcNAc) is a ubiquitous post-translational modification of proteins in eukaryotic cells. Despite their low abundance, O-GlcNAc-modified proteins play many important roles in regulating gene expression, signal transduction, and cell cycle. Aberrant O-GlcNAc proteins are correlated with many major human diseases, such as Alzheimer's disease, diabetes, and cancer. Because of the extremely low stoichiometry of O-GlcNAc proteins, enrichment is required before mass spectrometry analysis for large-scale identification and in-depth understanding of their cellular function. In this work, we designed and synthesized a novel thermosensitive immobilized triarylphosphine reagent as a convenient tool for efficient enrichment of azide-labeled O-GlcNAc proteins from complex biological samples. Immobilization of triarylphosphine on highly water-soluble thermosensitive polymer largely increases its solubility and reactivity in aqueous solution. As a result, facilitated coupling is achieved between triarylphosphine and azide-labeled O-GlcNAc proteins via Staudinger ligation, due to the increased triarylphosphine concentration, reduced interfacial mass transfer resistance, and steric hindrance in homogeneous reaction. Furthermore, solubility of the polymer from complete dissolution to full precipitation can be easily controlled by simply adjusting the environmental temperature. Therefore, facile sample recovery can be achieved by increasing the temperature to precipitate the polymer-O-GlcNAc protein conjugates from solution. This novel immobilized triarylphosphine reagent enables efficient enrichment and sensitive detection of more than 1700 potential O-GlcNAc proteins from HeLa cell using mass spectrometry, demonstrating its potential as a general strategy for low-abundance target enrichment.
O-GlcNAc proteins:
A0A024R5Q9, A0A0B4J1V8, A0A0B4J203, GAL3B, RBM47, UBA6, ESYT2, SHOT1, NDUF8, VWA8, GTPBA, A5Y5A3, CNOT1, PGP, TBAL3, SMHD1, LR14B, NCF1B, A8K005, B4DLC0, B4DLN1, B4DQP1, B4E259, EIFCL, B7Z2B5, B7Z532, B7Z5W1, DSA2D, D7RF68, E9PL57, E9PLN8, I1VE18, L0R5A1, S35U4, ADAS, KIF2A, PDLI1, AIP, SMAP, NDUS8, PSD12, PSMD9, SPT5H, DFFA, HIP1, EIF3F, IPO5, SAP18, IF2B3, DNM1L, NDUA4, PSDE, BIN1, NOP56, DDX3X, IMA3, TRI38, SCD, DHSD, TXND9, ACPM, UBFD1, AP3D1, DVL2, CHD1, TOR1A, PTGES, ACOT8, NHRF1, TPP1, RPC1, PSA7, MGST3, HAT1, QCR8, HGS, S27A2, HNRDL, BTAF1, SR140, PUR4, NPC1, DEGS1, SCAM2, ARPC2, ARPC3, BET1, RPAC1, PGRC2, NDUA1, RER1, OGT1, PMM2, HMGB3, EIF3H, ARPC5, DHX15,