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Hao Y, Li X, Qin K, Shi Y, He Y, Zhang C, Cheng B, Zhang X, Hu G, Liang S, Tang Q, Chen X. Chemoproteomic and Transcriptomic Analysis Reveals that O-GlcNAc Regulates Mouse Embryonic Stem Cell Fate through the Pluripotency Network. Angewandte Chemie (International ed. in English) 2023 36852467
Abstract:
Self-renewal and differentiation of embryonic stem cells (ESCs) are influenced by protein O-linked β-N-acetylglucosamine (O-GlcNAc) modification, but the underlying mechanism remains incompletely understood. Herein, we report the identification of 979 O-GlcNAcylated proteins and 1340 modification sites in mouse ESCs (mESCs) by using a chemoproteomics method. In addition to OCT4 and SOX2, the third core pluripotency transcription factor (PTF) NANOG was found to be modified and functionally regulated by O-GlcNAc. Upon differentiation along the neuronal lineage, the O-GlcNAc stoichiometry at 123 sites of 83 proteins-several of which were PTFs-was found to decline. Transcriptomic profiling reveals 2456 differentially expressed genes responsive to OGT inhibition during differentiation, of which 901 are target genes of core PTFs. By acting on the core PTF network, suppression of O-GlcNAcylation upregulates neuron-related genes, thus contributing to mESC fate determination.
O-GlcNAc proteins:
KDM6A, PO5F1, STAT3, SOX2, YTHD1, TBX3, SMCA4, TFPT, TET1, TET2, KLF4, KLF3, PHC1, KDM3A, PUM1, NANOG, SALL4, YTHD3, DPPA4, YTHD2, KLF5
Species: Mus musculus
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Li X, Lei C, Song Q, Bai L, Cheng B, Qin K, Li X, Ma B, Wang B, Zhou W, Chen X, Li J. Chemoproteomic profiling of O-GlcNAcylated proteins and identification of O-GlcNAc transferases in rice. Plant biotechnology journal 2023 21(4) 36577688
Abstract:
O-linked β-N-acetylglucosaminylation (O-GlcNAcylation) is a ubiquitous post-translation modification occurring in both animals and plants. Thousands of proteins along with their O-GlcNAcylation sites have been identified in various animal systems, yet the O-GlcNAcylated proteomes in plants remain poorly understood. Here, we report a large-scale profiling of protein O-GlcNAcylation in a site-specific manner in rice. We first established the metabolic glycan labelling (MGL) strategy with N-azidoacetylgalactosamine (GalNAz) in rice seedlings, which enabled incorporation of azides as a bioorthogonal handle into O-GlcNAc. By conjugation of the azide-incorporated O-GlcNAc with alkyne-biotin containing a cleavable linker via click chemistry, O-GlcNAcylated proteins were selectively enriched for mass spectrometry (MS) analysis. A total of 1591 unambiguous O-GlcNAcylation sites distributed on 709 O-GlcNAcylated proteins were identified. Additionally, 102 O-GlcNAcylated proteins were identified with their O-GlcNAcylation sites located within serine/threonine-enriched peptides, causing ambiguous site assignment. The identified O-GlcNAcylated proteins are involved in multiple biological processes, such as transcription, translation and plant hormone signalling. Furthermore, we discovered two O-GlcNAc transferases (OsOGTs) in rice. By expressing OsOGTs in Escherichia coli and Nicotiana benthamiana leaves, we confirmed their OGT enzymatic activities and used them to validate the identified rice O-GlcNAcylated proteins. Our dataset provides a valuable resource for studying O-GlcNAc biology in rice, and the MGL method should facilitate the identification of O-GlcNAcylated proteins in various plants.
O-GlcNAc proteins:
Q6K769
Species: Oryza sativa subsp. japonica
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Shi Y, Yan S, Shao GC, Wang J, Jian YP, Liu B, Yuan Y, Qin K, Nai S, Huang X, Wang Y, Chen Z, Chen X, Dong MQ, Geng Y, Xu ZX, Li J. O-GlcNAcylation stabilizes the autophagy-initiating kinase ULK1 by inhibiting chaperone-mediated autophagy upon HPV infection. The Journal of biological chemistry 2022 298(9) 35931119
Abstract:
Human papillomaviruses (HPVs) cause a subset of head and neck squamous cell carcinomas (HNSCCs). Previously, we demonstrated that HPV16 oncogene E6 or E6/E7 transduction increases the abundance of O-linked β-N-acetylglucosamine (O-GlcNAc) transferase (OGT), but OGT substrates affected by this increase are unclear. Here, we focus on the effects of O-GlcNAcylation on HPV-positive HNSCCs. We found that upon HPV infection, Unc-51-like kinase 1 (ULK1), an autophagy-initiating kinase, is hyper-O-GlcNAcylated, stabilized, and linked with autophagy elevation. Through mass spectrometry, we identified that ULK1 is O-GlcNAcylated at Ser409, which is distinct from the previously reported Thr635/Thr754 sites. It has been demonstrated that PKCα mediates phosphorylation of ULK1 at Ser423, which attenuates its stability by shunting ULK1 to the chaperone-mediated autophagy (CMA) pathway. Using biochemical assays, we demonstrate that ULK1 Ser409Ser410 O-GlcNAcylation antagonizes its phosphorylation at Ser423. Moreover, mutations of Ser409A and its neighboring site Ser410A (2A) render ULK1 less stable by promoting interaction with the CMA chaperone HSC70 (heat shock cognate 70 kDa protein). Furthermore, ULK1-2A mutants attenuate the association of ULK1 with STX17, which is vital for the fusion between autophagosomes and lysosomes. Analysis of The Cancer Genome Atlas (TCGA) database reveals that ULK1 is upregulated in HPV-positive HNSCCs, and its level positively correlates with HNSCC patient survival. Overall, our work demonstrates that O-GlcNAcylation of ULK1 is altered in response to environmental changes. O-GlcNAcylation of ULK1 at Ser409 and perhaps Ser410 stabilizes ULK1, which might underlie the molecular mechanism of HPV-positive HNSCC patient survival.
O-GlcNAc proteins:
ULK1
Species: Homo sapiens
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Li J, Li Z, Duan X, Qin K, Dang L, Sun S, Cai L, Hsieh-Wilson LC, Wu L, Yi W. An Isotope-Coded Photocleavable Probe for Quantitative Profiling of Protein O-GlcNAcylation. ACS chemical biology 2019 14(1) 30620550
Abstract:
O-linked N-acetylglucosamine ( O-GlcNAc) is a ubiquitous post-translational modification of proteins and is essential for cell function. Quantifying the dynamics of O-GlcNAcylation in a proteome-wide level is critical for uncovering cellular mechanisms and functional roles of O-GlcNAcylation in cells. Here, we develop an isotope-coded photocleavable probe for profiling protein O-GlcNAcylation dynamics using quantitative mass spectrometry-based proteomics. This probe enables selective tagging and isotopic labeling of O-GlcNAcylated proteins in one step from complex cellular mixtures. We demonstrate the application of the probe to quantitatively profile O-GlcNAcylation sites in 293T cells upon chemical induction of O-GlcNAc levels. We further applied the probe to quantitatively analyze the stoichiometry of O-GlcNAcylation between sorafenib-sensitive and sorafenib-resistant liver cancer cells, which lays the foundation for mechanistic investigation of O-GlcNAcylation in regulating cancer chemoresistance. Thus, this probe provides a powerful tool to profile O-GlcNAcylation dynamics in cells.
O-GlcNAc proteins:
A0A0B4J203, A0A0C4DFX4, SBNO1, P121B, CX028, RGPD3, AN36A, P121C, GG6L6, S31C2, E9PCH4, H0YAE9, H0YHG0, GG6LV, H3BMH7, PDLI1, TAF4, BCL9, ABLM1, CHD2, KMT2D, RGPD8, OPLA, HGS, MYPT1, ZN609, SC16A, SET1A, TIF1A, EIF3H, TET3, M3K7, PRPF3, TPD54, IF4G3, E41L2, AKAP8, TM11D, MYPT2, GANP, PLIN3, MAFK, BRD4, MITF, N4BP1, ATG13, PP6R2, ANR17, NCOR1, SPAG7, SRS10, SF3B1, CSDE1, TOX4, PCF11, AGFG2, SMC2, M3K6, SC24B, ZBT11, CNOT4, EYA4, OXSR1, ZMYM6, CCNE2, ANGT, LMNA, ALDOA, GCR, HSPB1, F13B, RLA2, K1C18, K2C8, ZFY, SRPRA, RU17, VIME, RU2A, ATX1L, RGPD1, S31C1, GLI3, LYAG, PABP1, COBA1, CO6A3, MYH7, ENPL, ZEP1, RS2, ZFX, ZNF30, ANPRC, ATF7, EGR1, SON, RCC1, ATF1, ATF6A, HXA5, ROA2, CBL, IF4B, GATA2, RIR1, RAE1, APC, ATPA, ARNT, MAP4, HXD9, HLAF, CLIP1, ZEP2, MYH10, TIE1, NU214, DEK, PDE6B, SRP14, CUX1, LPPRC, GATA4, KI67, YAP1, RFX5, SOX2, PRC2A, NASP, CDK8, NU153, RBP2, TAF6, EMD, PAPOA, HCFC1, NEK4, AGFG1, NUP98, INHBC, CADH6, F193A, KGD4, RT34, SARNP, LACTB, COG7, FOXK1, DAB2, PLIN5, SPTB2, SP2, NRG1, IF4G1, K1C17, TLE1, TLE3, TLE4, UBE3A, ACK1, AHNK, FCHO2, FOXO1, TROAP, BPTF, IRAG2, BFSP1, FOXC1, PRDM2, DDX10, G3BP1, PABP4, GRB10, PPIG, MADCA, PICAL, MAMD1, CUL4B, ASPP2, SPTN1, CDK13, CYLC2, DSG2, UBP2L, SRC8, ITPR3, PUM1, MDC1, EPN4, RRP1B, NCOA6, RRP5, RFTN1, R3HD1, WDR43, EEA1, MTFR1, SF3B3, RYR3, SF01, JHD2C, ELF2, MYLK, TAB1, ZYX, ADRM1, QSER1, CL16A, RHG31, AAK1, TMM44, AMOT, IF44L, YIF1B, AG10A, CD048, FSIP2, ESCO1, S2553, BCORL, AN36C, MTUS2, PRC2B, CEP78, SAMD9, TSBP1, LRIF1, CXG2, SKT, ZN648, UBAP2, RBM26, RC3H1, EFCB6, CE350, RPRD2, S31A6, TASO2, ECM29, RN123, PLCX3, ARID2, DEN2C, K0930, LIN54, M18BP, SCYL2, NFRKB, KLH35, ZC3HE, ANR11, FIP1, SBSN, S49A3, FAT4, MCAF1, BCOR, DUSTY, GGYF2, BNC2, CO039, SRCAP, UBN2, FOXNB, UBP54, HAKAI, ASXL2, KNDC1, SPT6H, TAOK1, KDM3B, RGPD4, POGZ, NUFP2, EMSY, I2BP2, SH3R1, HUWE1, YTHD3, FLIP1, KAISO, MYPN, TTC6, LDB1, TM135, TBC26, ZFHX4, ANGL5, SPAS2, DZIP1, P66A, AHNK2, FMNL3, NAV2, ARI3B, MGAP, RP1L1, CC28A, Z3H7A, CDAN1, ANKH1, SUGP1, PHAR4, KMT2E, XRN1, SPART, NUP93, ZN687, CMTR1, THMS1, AN36B, TMTC2, SYNPO, FNBP4, GG6L1, ENAH, GG6L2, SLAI1, PHC3, BD1L1, NUP35, DDX55, NEIL3, GSDMB, ALMS1, STK35, GEMI5, RPGF6, SMCR8, WIPF2, TM171, RN133, TEKT4, LMO7, CKAP2, ATX2L, ACO11, P66B, DAAF4, BBX, FIG4, ZN516, RREB1, FUBP2, LPP, E2F7, TTC28, TOM6, ASTRA, OTUB2, PGBD4, LEG12, ELP4, RBM33, MYEOV, SMRD1, DDX27, P121A, TONSL, PDLI5, THOC3, VCIP1, LRIQ1, ZFR, EP400, CBPC4, RBM14, IPP2L, QKI, PLIN4, JMJD8, RBM15, MINT, SEC62, AGAP2, RGPD5, ATX2, MYD88, ARI3A, SPI2A, SPI2B, DPH2, MCMBP, TMPSD, YTHD1, WNK3, PP12C, TB182, TANC1, CEP44, SENP6, BRD8, RGAP1, ALX4, KI13A, KCNH6, ZN106, FOXP1, PABP3, SMOC2, WNK1, ZHX3, CP095, REEP4, DOCK5, ZN703, GORS2, MLXIP, PKHA5, FOH1B, RC3H2, TANC2, TRPM3, SYTL2, CP4FC, GAK5, JPH1, APMAP, DMAP1, GP108, KMT5A, GPR84, DUOX2, DUOX1, PCDBG, MDN1, NALP2, CARF, HXC10, TAB2, CDK12, ADA2, ITSN2, F135A, SI1L2, RBM27, KANL3, ZN219, DYH17, AFF4, NB5R1, S30BP, NRBP, BAZ2A, SIX4, HOOK1, TASOR, GMEB2, ZHX1, TAOK2, CFA92, MRTFB, ZBT21, PRR12, YETS2, HECD1, MYO6, ICAM5, MAGD2, SCAF8, TRAK1, SHAN2, SRRM2, EXO1, SCML2, POK19, POLH, NCKP1, AT11B, NOP58, ZN281, UB2J1, GRIP1, SALL2, ARIP4, RPGF2, HYOU1, TTLL3, PRC2C, PCDB4, NCOR2, CP46A, 5MP1, CABIN, NCOA3, S23IP, U3KPZ7
Species: Homo sapiens
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Hao Y, Fan X, Shi Y, Zhang C, Sun DE, Qin K, Qin W, Zhou W, Chen X. Next-generation unnatural monosaccharides reveal that ESRRB O-GlcNAcylation regulates pluripotency of mouse embryonic stem cells. Nature communications 2019 10(1) 31492838
Abstract:
Unnatural monosaccharides such as azidosugars that can be metabolically incorporated into cellular glycans are currently used as a major tool for glycan imaging and glycoproteomic profiling. As a common practice to enhance membrane permeability and cellular uptake, the unnatural sugars are per-O-acetylated, which, however, can induce a long-overlooked side reaction, non-enzymatic S-glycosylation. Herein, we develop 1,3-di-esterified N-azidoacetylgalactosamine (GalNAz) as next-generation chemical reporters for metabolic glycan labeling. Both 1,3-di-O-acetylated GalNAz (1,3-Ac2GalNAz) and 1,3-di-O-propionylated GalNAz (1,3-Pr2GalNAz) exhibit high efficiency for labeling protein O-GlcNAcylation with no artificial S-glycosylation. Applying 1,3-Pr2GalNAz in mouse embryonic stem cells (mESCs), we identify ESRRB, a critical transcription factor for pluripotency, as an O-GlcNAcylated protein. We show that ESRRB O-GlcNAcylation is important for mESC self-renewal and pluripotency. Mechanistically, ESRRB is O-GlcNAcylated by O-GlcNAc transferase at serine 25, which stabilizes ESRRB, promotes its transcription activity and facilitates its interactions with two master pluripotency regulators, OCT4 and NANOG.
O-GlcNAc proteins:
A0A087X1C1, A0A0B4J203, A0A0C4DFX4, SRCRL, SBNO1, CNOT1, IQCAL, RGPD3, LRIQ3, P121C, YU005, H0YHG0, H3BMQ9, H8Y6P7, I3L521, PDLI1, TAF4, P3C2A, DDX3X, NFIB, ARI1A, ABLM1, KMT2D, ZN197, RGPD8, MYPT1, ZN609, ZN646, SET1A, SYNEM, ZN185, NUP42, SI1L1, TGFI1, VIP2, M3K7, TPD54, SYNJ1, IF4G3, WIPF1, SMAD6, MYPT2, PLIN3, MAFK, N4BP1, ANR17, NCOR1, GGYF1, PRDM1, STAM2, TOX4, AGFG2, UNC5C, VENTX, SC24B, PCNT, ZBT11, CNOT4, BAG3, TXD12, TTLL1, APCL, NSD2, EGFR, IGF2, CRYAB, LMNA, ALDOA, GCR, HSPB1, PCCA, RLA2, JUN, HEP2, K1C18, ANXA2, ADRB2, NFIC, VIME, 5HT1A, SNRPA, ROA1, CO4B, ATX1L, FMAS1, GRL1A, DERPC, C1C1L, GLI2, TPR, GYS1, MYL6B, PO2F1, ATF2, ZEP1, RS2, ITB4, JUNB, JUND, ATF7, SON, ATF1, NEBU, CSRP1, NF1, ROA2, RFX1, CBL, COF1, IF4B, ARNT, MAP4, CALX, TEAD1, PDIA3, CDC27, CLIP1, ZEP2, ELF1, TTK, PCKGC, ADDA, NU214, MP2K2, NUP62, VKGC, VATA, CUX1, TXLNA, PBX2, HELZ, UTRN, RFX5, PAXI, NR2C2, NASP, CENPF, YLPM1, NU153, RBP2, TAF6, EMD, PAPOA, HCFC1, AGFG1, NUP98, ATX1, MYOM2, AF10, AF17, DSRAD, NU107, RL8, F193A, PITX1, PHC1, KGD4, SARNP, FOXK1, HTD2, DAB2, RHG04, VIGLN, HNRPU, SPTB2, SCN7A, FOXK2, EWS, MEF2A, SP2, NUCB1, IF4G1, NOTC2, TLE3, TLE4, NMDZ1, GABPA, ZO1, ACK1, CACB2, EP300, AHNK, MGAT2, GALT2, FOXO1, SNF5, BPTF, NFIA, DPYD, TP53B, ZN155, FOXC1, AKAP6, ROA0, GPS2, G3BP1, KCAB2, PABP4, PLD1, PICAL, MAMD1, RIPK1, SNW1, MTMR1, CUL4B, ASPP2, NFYC, CDK13, TOB2, DAG1, VEZF1, DSG2, UBP2L, GIT2, SRC8, MDC1, EPN4, RRP1B, NCOA6, GSE1, MEF2D, ARI5B, NUMA1, PSME4, SART3, KIF14, BRD3, EBP, PLEC, RBMS2, TAF1C, SF01, MED1, JHD2C, MARE1, ELF2, TAB1, ZFHX3, ZYX, ADRM1, TAF9, RFX7, QSER1, QRIC1, ZN800, LR75B, EPC2, CRTC2, YIF1B, ZN326, K2026, PRC2B, SYAM, CE170, NHSL1, ZN362, ZEP3, LRIF1, UBR4, SKT, RHG21, UBAP2, RBM26, RC3H1, VP13D, RPRD2, ZN318, TASO2, TTC23, ERR2, KAZRN, ARID2, RHG17, ANR40, BICRL, NIPBL, LIN54, NFRKB, ZN449, RSBNL, MDEAS, ZC3HE, CRTC3, SAS6, MCAF1, BCOR, MPRIP, GGYF2, BNC2, FGD5, CO039, SRCAP, YJ005, UBN2, RAPH1, UBP54, PREX2, HAKAI, ASXL2, SPT6H, KDM3B, ZCCHV, RGPD4, POGZ, SZRD1, MAVS, EMSY, RAI1, I2BP2, SRGP1, SH3R1, YTHD3, STRA8, MYPN, TLK2, ZFHX4, BCL9L, IQCH, SNX32, PRSR1, MEX3D, DDX42, CACL1, P66A, CC125, KCC1D, HID1, AHNK2, FOXP4, NAV2, MGAP, RP1L1, PHF6, ANKH1, SUGP1, CCAR1, RPAP2, MILK2, EFC13, PHAR4, XRN1, TBC3A, TENS4, SPART, NUP93, ZN687, SYNPO, FNBP4, TAB3, CPSF7, ARFG1, ENAH, XXLT1, CHSTE, TNR6A, PHC3, SP20H, NAV1, VP37A, KMT2C, ARI1B, NUP35, TDRD7, NEDD1, PUM2, ALMS1, DLG5, ZN384, WIPF2, FRS2, F222B, SMAP2, IASPP, ZFN2B, TWST2, PCNP, LMO7, ATX2L, STAB2, PALLD, CSKI2, SRS12, P66B, BBX, SMG7, RTF1, PHF3, MAML1, LAR4B, PRP16, PRCC, CBP, EVPL, DDX17, GPKOW, FUBP2, LPP, FUBP1, TTC28, PF21A, KLH29, RBM33, MMAB, EF2KT, GWL, P121A, PDLI5, INT4, FUBP3, PAWR, ANCHR, Z512B, ZFR, EP400, COG8, RBM14, QKI, LENG8, CIC, MED15, ERBIN, MINT, HTF4, TEAD3, RGPD5, CGRE1, ATX2, CTIP, SH3G1, DPH2, WAC, DIDO1, TBCD, HNRL1, HIRP3, CAR11, YTHD1, GTPB4, AMRA1, TANC1, CEP44, MFF, SP130, BRD8, RGAP1, I2BPL, RBNS5, ADNP, FOXP1, PTN23, CA198, WNK1, E41L1, ZHX3, ILRUN, PEAK1, PKHG2, ECT2, JUPI2, PKHA5, RC3H2, TAF9B, ZBT20, NCOA5, TANC2, ZN532, ARFG3, PLPL8, UBN1, PCD12, INCE, PDLI7, 4ET, DIAP3, PDS5B, RBM12, CCD87, CARF, TAB2, MS18A, CDK12, ITSN2, WHRN, DAPLE, SLAI2, BAHC1, BCCIP, C2D2A, RBM27, KANL3, ZN219, LIMD1, TCF20, UBQL2, S30BP, NRBP, CTNA3, BAZ2B, HERC5, SIX4, TASOR, GMEB2, PARP4, NUP50, ZHX1, MRTFB, PRR12, YETS2, HECD1, SPAT2, SCAF8, LIMC1, ZC3H4, SRRM2, SCML2, ZN148, ZFP30, WDR37, MYH15, R3HD2, ZN281, COQ6, DCAF1, RPGF2, CRBG1, PRC2C, RBM7, CD2AP, TSSC4, HCFC2, NCOR2, GMEB1, DC1L1, NCOA3, ZHX2, S23IP, U3KPZ7
Species: Homo sapiens, Mus musculus
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Qin K, Zhu Y, Qin W, Gao J, Shao X, Wang YL, Zhou W, Wang C, Chen X. Quantitative Profiling of Protein O-GlcNAcylation Sites by an Isotope-Tagged Cleavable Linker. ACS chemical biology 2018 13(8) 30059200
Abstract:
Large-scale quantification of protein O-linked β- N-acetylglucosamine (O-GlcNAc) modification in a site-specific manner remains a key challenge in studying O-GlcNAc biology. Herein, we developed an isotope-tagged cleavable linker (isoTCL) strategy, which enabled isotopic labeling of O-GlcNAc through bioorthogonal conjugation of affinity tags. We demonstrated the application of the