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Zhu WZ, Palazzo T, Zhou M, Ledee D, Olson HM, Paša-Tolić L, Olson AK. First comprehensive identification of cardiac proteins with putative increased O-GlcNAc levels during pressure overload hypertrophy. PloS one 2022 17(10) 36288343
Abstract:
Protein posttranslational modifications (PTMs) by O-GlcNAc globally rise during pressure-overload hypertrophy (POH). However, a major knowledge gap exists on the specific proteins undergoing changes in O-GlcNAc levels during POH primarily because this PTM is low abundance and easily lost during standard mass spectrometry (MS) conditions used for protein identification. Methodologies have emerged to enrich samples for O-GlcNAcylated proteins prior to MS analysis. Accordingly, our goal was to identify the specific proteins undergoing changes in O-GlcNAc levels during POH. We used C57/Bl6 mice subjected to Sham or transverse aortic constriction (TAC) to create POH. From the hearts, we labelled the O-GlcNAc moiety with tetramethylrhodamine azide (TAMRA) before sample enrichment by TAMRA immunoprecipitation (IP). We used LC-MS/MS to identify and quantify the captured putative O-GlcNAcylated proteins. We identified a total of 700 putative O-GlcNAcylated proteins in Sham and POH. Two hundred thirty-three of these proteins had significantly increased enrichment in POH over Sham suggesting higher O-GlcNAc levels whereas no proteins were significantly decreased by POH. We examined two MS identified metabolic enzymes, CPT1B and the PDH complex, to validate by immunoprecipitation. We corroborated increased O-GlcNAc levels during POH for CPT1B and the PDH complex. Enzyme activity assays suggests higher O-GlcNAcylation increases CPT1 activity and decreases PDH activity during POH. In summary, we generated the first comprehensive list of proteins with putative changes in O-GlcNAc levels during POH. Our results demonstrate the large number of potential proteins and cellular processes affected by O-GlcNAc and serve as a guide for testing specific O-GlcNAc-regulated mechanisms during POH.
O-GlcNAc proteins:
MA7D1, CAVN4, OTUD4, FIBA, TRDN, DPYL2, CLCA, MYH11, KNG1, PRDX6, AKAP1, DLDH, NDUBB, GSTO1, CASQ2, RL21, PHB2, ECH1, NDUA1, TIM44, CAVN1, AKAP2, SLK, NIPS2, AT2A2, PGAM2, EF1B, ATX2, NMT1, XIRP1, PDLI1, MYPC3, SNX3, DC1I2, PLIN4, ROA2, RAD, CLPP, TOM1, COX1, COX2, CAH2, CO3, IGJ, KV2A7, IGKC, GCAB, IGHG1, IGH1M, B2MG, HBA, HBB1, LAMC1, FABP4, CFAB, MYG, ALDOA, ANF, AATC, AATM, TBA1B, LDHA, G6PI, TRY2, TTHY, KCRM, ANXA2, ALBU, SPA3K, ENPL, APOE, MDHM, ITB1, PDIA1, NUCL, PGK1, FRIH, MYL3, SODM, NDUB1, ANXA1, EF1A1, CATB, TAU, THIO, GSTM1, H2B1F, H10, CO1A1, FABPH, HS90B, DMD, PFKAL, COX5A, RL7A, GELS, MYH3, AT1B1, GLUT4, RL7, MDHC, RSSA, CALR, HSPB1, ANXA6, GLNA, B4GT1, GSTM2, H12, LDHB, SPTN1, G3P, ENOA, HXK1, PPIA, TPIS, BASI, COF1, RL13A, SERPH, COX5B, COX41, BIP, PRDX3, VIME, CYTC, ENOB, TGM2, EIF3A, CBX3, CXA1, PIMT, CRYAB, CATA, CAPG, GSTA4, RS2, TLN1, MOES, RADI, CTNA1, DHE3, FKB1A, MAP4, RL3, H2AX, PDIA3, PABP1, FRIL1, FETUA, DESM, AIMP1, SCP2, LA, ANT3, RANG, MIF, PTN11, HSPB7, ODPA, CALX, PRDX1, RL12, RL18, FBLN2, HMGCL, GRP75, CAP1, TKT, RL28, ACSL1, ECI1, H14, H11, H15, H13, ALDR, COF2, ACADM, PRS7, ADX, ALDH2, CAPZB, RL6, RL29, CACP, RL13, ANXA5, TBCA, LMNA, CX7A2, TNNI3, ADT1, ROA1, PCY1A, CAV1, ODBA, DHB8, CSRP3, ACADV, PA2G4, TNNT2, ICAL, ACADL, CAV3, MLRV, ADT2, LUM, KPYM, NDUS6, CPT2, RL10A, ODB2, CCHL, MOT1, IDHP, STOM, ADK, ATPK, ACYP2, ATP68, ATP5E, AT5G2, CX6B1, CX7A1, COX7B, CYB5, UBP5, ATPB, WFS1, EF1D, ACTN4, EF2, OPA1, TPM1, B2L13, PCBP1, ACTB, RS20, PPLA, UB2D3, UBC12, UBE2N, RL26, RL27, SUMO2, HNRPK, 1433G, RS7, RS8, 1433E, RS14, RS18, RS11, RS13, DLRB1, EF1A2, RS4X, RL23A, RS6, H4, RAN, RS15, RS25, RS30, RL30, CYC, RL31, RS3, RL32, RL8, FBX40, YBOX1, RS27A, HSP7C, MPC1, CH60, GNAS2, 1433Z, HMGB1, IF5A1, ACTG, ACTH, RS12, RS10, RL22, ACTC, UB2L3, 1433T, TBA4A, TBB4B, H31, IMB1, PEBP1, HINT1, IDHG1, NACAM, TCPD, SGCD, SGCA, WNK1, RL19, SRSF3, H32, RS3A, G3BP2, ANXA4, COQ7, FUMH, G3BP1, LAMA4, QCR6, PRDX5, APOA1, CO1A2, NDKB, TERA, UBA1, MYH6, ATPA, KCRB, CO6A1, PGBM, EMAL1, ATP5I, CLUS, ANXA7, ACADS, CD36, NEBL, PERM1, TRI72, HSDL2, HP1B3, PRC2C, TM38A, Q3TV00, SRSF6, FUBP2, SDHF1, EI3JA, LIMC1, AAK1, NDUB6, MCCB, COBL1, SLMAP, SRBS2, K22O, CPZIP, NDUF2, MYPN, HSPB6, MLIP, IASPP, TM1L2, ODO1, LAMA2, STIP1, REEP5, VDAC2, VDAC1, COQ8A, LAP2B, PRDX2, HCFC1, LAMB2, HSP74, HCDH, FBN1, FXR1, KTN1, GDIB, DDX5, KINH, LASP1, PZP, NPM, NNTM, SNRPA, SPTB2, SPEG, SRBS1, DBNL, NDUA4, FKBP3, IF4G2, ZYX, CAVN2, SPRE, SF01, CD34, CH10, H2A2B, H2A2C, NQO1, VINC, EI3JB, CLH1, H2A2A, GPSM1, IF4G1, KCRS, LPPRC, AT1A2, CAND2, RS9, CMYA5, FHOD3, ATPMK, MIC27, MSRB2, NP1L4, MTCH1, MTCH2, PICAL, NDUAC, HNRPQ, HUWE1, LC7L2, MIC10, NEXN, SRCA, LNP, CLAP1, SRA1, UBP2L, NRAP, BDH, GLRX5, ATPF1, EFTU, H2A3, LPP, ROA3, MYPT2, IF4B, ECHM, RCN3, SYIM, EIF2A, ODPX, EEA1, ODP2, ECHA, COQ3, RL24, FLNA, TIDC1, PLIN5, SYP2L, SSDH, THIM, MIC60, PABP2, BOLA3, SYEP, LONM, H2A1F, H2A1H, H2A1K, SEPT8, PGP, AL4A1, SLAI2, PDLI5, PYGB, PAK2, AFG32, EIF3B, FIBB, COXM2, COQ9, SDHA, SIR5, ACD10, NDUS8, NNRE, HIBCH, THIL, MARE2, QCR9, H2AJ, DC1L1, SPART, NAR3, MIC13, CLYBL, PP14C, TXLNB, MAVS, MYH9, VIGLN, PSMD2, AT1A1, LMCD1, HNRPU, MPCP, FLNC, SFPQ, NDUS1, MIC25, ATPG, SH3L3, UBAP2, NDUS2, EIF3H, CISD1, HEMO, EGLN1, L2HDH, RPN1, NDUV1, GRHPR, MYH7, PCCA, UGPA, ETFD, THIKA, TRFE, TOIP1, MACD1, CLIP1, K2C5, UBXN1, ALPK3, RT02, CPT1B, TALDO, ROAA, THTM, STML2, PACN3, ECHB, PLST, ACON, DCTN2, NAMPT, PPIF, NDUAA, ETFA, GRPE1, PARK7, NDUS5, DNJA3, PCCB, MCCA, PPR3A, EH1L1, ACS2L, RTN4, RRBP1, GDIR1, NDUA5, COX6C, TOM22, ATP5L, NDUB2, COXM1, RM24, NDUC2, DECR, QCR8, NDUA2, FIS1, SDHB, NDUB4, NDUB5, NDUB9, AT5F1, RS21, ACO13, 1433B, CYB5B, KGD4, NDUA6, NDUB3, PSMD9, RL14, NDUB7, M2OM, UCRI, MIC19, OCAD1, PIN4, NDUS4, RT28, PAIRB, SPCS2, SSBP, QCR1, NSF1C, C560, CISY, TOM70, RS19, ODPB, HNRPM, PGM1, SCOT1, CY1, HINT2, GAL3A, MCEE, CHCH2, ERP44, NOL3, MMAB, ODO2, COA3, RT33, ATPD, NDUB8, NDUV2, IDH3A, F162A, ARMC1, RL37, QCR7, RL4, EF1G, EFHD2, PRS37, ATPO, QCR2, PGAM1, MYPT1, LNEBL, TELO2, NDUA9, NDUS7, NDUA8, NDUBA, NDUS3, CRIP2, ETFB, ATP5H, MIC26, MMSA, EHD4, NDUAD, POPD1, HRG, PALLD, JPH2, IVD, NHRF2, PALMD, ACTN2, AK1A1, DBLOH, MYOZ2, PDK2, HSPB8, LDB3, HIG1A, BAG3, AUHM, MACF1, VAPB, NDRG2, ACOT2, QKI, PRS30, UBQL2, H2AY, GLYG, ACOX1, DEST, KAD1, PSA1, KAD2, KAD3, CAD13, PYGM, IF4H, COR1B, SUCA, ECI2, SH3BG, TAGL2, PACN2, EHD1, AIFM1, NDUA7, BAG6, USO1, HNRPC, PLM, LETM1, SUCB2, SUCB1, K2C6B
Species: Mus musculus
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Lee BE, Kim HY, Kim HJ, Jeong H, Kim BG, Lee HE, Lee J, Kim HB, Lee SE, Yang YR, Yi EC, Hanover JA, Myung K, Suh PG, Kwon T, Kim JI. O-GlcNAcylation regulates dopamine neuron function, survival and degeneration in Parkinson disease. Brain : a journal of neurology 2020 143(12) 33300544
Abstract:
The dopamine system in the midbrain is essential for volitional movement, action selection, and reward-related learning. Despite its versatile roles, it contains only a small set of neurons in the brainstem. These dopamine neurons are especially susceptible to Parkinson's disease and prematurely degenerate in the course of disease progression, while the discovery of new therapeutic interventions has been disappointingly unsuccessful. Here, we show that O-GlcNAcylation, an essential post-translational modification in various types of cells, is critical for the physiological function and survival of dopamine neurons. Bidirectional modulation of O-GlcNAcylation importantly regulates dopamine neurons at the molecular, synaptic, cellular, and behavioural levels. Remarkably, genetic and pharmacological upregulation of O-GlcNAcylation mitigates neurodegeneration, synaptic impairments, and motor deficits in an animal model of Parkinson's disease. These findings provide insights into the functional importance of O-GlcNAcylation in the dopamine system, which may be utilized to protect dopamine neurons against Parkinson's disease pathology.
O-GlcNAc proteins:
BIG2, F1712, VIR, AJM1, RPGP1, UBR4, SCN1A, AGRIN, TITIN, KALRN, STPG3, FXL16, TT23L, PTPRS, GRIK3, SCN2A, DLGP4, OSBL8, PTPRZ, PGBD5, GLSK, GCN1, CE350, PI4KA, RYR2, AGRF2, UBE4A, NRX2A, FRY, SYGP1, OTOGL, AT2B1, ANK3, CA2D1, DPYL2, STXB1, DCTN1, U5S1, GFRA2, GALT1, SEM4D, KIF3C, PLCA, PHB2, NCAM2, GRAK, PURB, IMA3, IMA7, PLD3, FOLH1, FKBP8, STX1A, PSDE, VIAAT, AP1B1, C1QBP, SYT3, HNRH1, SATT, CTND2, SDC4, AP3D1, RGS9, RGS7, CSK22, OX2G, AAKG1, CRYM, PROM1, CNTP1, ENTP2, BCKD, SNG1, NIPS1, NIPS2, SEPT7, AT2A2, DHX9, PI51C, PI42A, ITB5, GPX4, NPTX2, GNAZ, WDR1, S4A4, MTX2, CNTFR, ZFR, CSN3, HCN2, HCN1, CTBP1, BSN, MPP3, NOE1, CBPD, LGMN, COR1A, CYB, COX1, COX2, COX3, HPRT, ATP6, THY1, H3C, LAMC1, NU1M, NU2M, NU4M, NU5M, ATP8, GFAP, MBP, PRIO, ALDOA, KAPCA, AATM, TBA1B, TBA3, KIT, LDHA, G6PI, MDR1B, ENPP1, HS90A, ENPL, KCC4, NFL, NFM, RASN, PGK2, ITB1, PPBT, NUCL, PGK1, ACE, LRC4B, UBB, UBC, EF1A1, IF4A2, GSTM1, 4F2, H10, LAMP1, HS90B, L1CAM, ITA5, KCC2A, ITB2, ITPR1, TCPA, PFKAL, CNTN1, NCAM1, AT1B1, C1QB, RS16, RL7, AT1B2, PSMD3, MAP1B, GLNA, CADH2, INSR, NTRK2, KCNC1, SPTB1, H12, KPCE, LDHB, CN37, DDX3L, KCNA1, KCNA3, AMPE, ASSY, SPTN1, G3P, LAMP2, ENOA, AP2A1, AP2A2, HXK1, GTR1, PTPRA, COF1, GNAO, FAS, LAMA1, NFH, COX41, BIP, HEXB, VIME, MTAP2, MAG, GNA11, GNAQ, MDR1A, ACES, GBRG2, AP1G1, GBRD, EIF3A, CXA1, GRIA1, GRIA2, TY3H, RS2, GBRA2, RL3, BRAF, KCC2B, NP1L1, NCKP1, SNAB, KIF2A, KIF3A, PABP1, GBB4, KCRU, GNA14, KAP3, SC6A1, S6A11, MP2K1, GTR3, LA, RASK, SYWC, KIF1A, HYES, RAB3D, RAB5C, RAB6A, RAB21, NMDZ1, ODPA, RET, FBRL, KCNJ2, CD81, GPM6A, GPM6B, GNL1, DYN1, DYN2, GRIK2, CAP1, ABCA2, PURA, HD, EAA2, H14, H15, H13, ITAV, SYT1, NSF, RB11B, AINX, MYO1B, NEDD4, ALDH2, GRM8, CAZA2, CAPZB, MP2K4, PFKAM, RL6, RL29, RL5, GLRB, DCE1, DCE2, CBR1, GSTM5, ADT1, INPP, CDK5, SAHH, GDIA, VATA, VATE1, GBRB1, RAB7A, ACADL, VA0D1, ADT2, EAA3, KCNJ4, KPYM, RAB2A, PRS6B, PTN5, NCAN, ABCD3, RAB8A, ATPK, ATP5E, UBP5, ATPB, CTBP2, EAA1, WFS1, FUS, NICA, ACTN4, ASM3B, EF2, OPA1, DOCK4, IRPL1, ARPC4, MYPR, PLPP, ACTB, MDGA2, NEUG, RAC3, IF4A1, MEGF8, RAB5B, RAB10, RAB8B, ARP2, ACTZ, CSN2, ARF3, ARL1, CAH10, RAP2B, STX1B, RAB6B, RL27, ARF4, GABT, HNRPK, 1433G, RS7, PP1A, RS8, SMD1, KCAB2, ABI2, RB11A, EF1A2, RS4X, PP2AB, RL18A, ACTA, AP2S1, RL23A, VISL1, H4, GBRA1, VATB2, RAB1A, RAB3C, RAN, RAP1A, RS24, GBB1, GBB2, RS3, RL8, RS27A, RL40, RAC1, RAB3A, HSP7C, CH60, VAMP2, NOE3, GBRB3, VATL, PP1G, 1433Z, GBRB2, KCNA2, KCAB1, CRNL1, DYL1, ACTG, ACTH, KPCG, PP2BA, PP2AA, PHB, CSK2B, ACTC, RACK1, ACTS, KAPCB, TBA4A, TBA1A, TBB4B, KPCB, H31, IMB1, PLXA1, PLXA2, PLXA3, DCC, ITPR3, NCHL1, HNRH2, ELAV1, USP9X, IDHG1, LYAG, AT8A1, TCPH, TCPB, TCPD, TCPE, TCPZ, TCPG, TNIK, WNK1, RL36A, ARF1, ARF5, AP2M1, H32, H33, ADCY5, NPTN, RS3A, AT1B3, DPYL1, ZNT3, GRM1, SHPS1, NEO1, FUMH, M4K4, C1QA, TBB5, PDE4D, PDE1B, NMDE2, SC23A, TERA, C1QC, CTNB1, PLAK, EPHA4, MARK3, ATPA, CHLE, KCND1, KCRB, NF1, CDK18, RAC2, MARK2, PGBM, PTPRG, PYC, KCMA1, PADI2, INF2, TRIO, MDGA1, CTP5A, ITB8, PSA, GRM2, PTCD3, PHAR1, LRFN1, SPP2B, HP1B3, NLRX1, PRC2C, TM38A, VGLU1, BIG3, PLXD1, AGAP2, AAK1, TEN4, CAMKV, DOP2, RMD3, SMU1, MCCB, GPD1L, LIGO2, SRBS2, CDKL5, K22O, VPS51, GRM5, CBAR2, SHAN3, UN13A, SE6L2, KCTD8, KCD16, LRC8B, VP13A, C2C4C, S2551, MRS2, DIRA2, CYFP2, TM1L2, RHG44, MYO1D, RABL6, DJC11, UIMC1, ICAM5, FLOT2, HNRPD, PTPRN, CSK21, KHDR1, IGF1R, CLD11, SPB6, ARHG2, VDAC2, VDAC3, VDAC1, ABCB7, ASTN1, P3C2A, CAC1E, LAMB2, CTNA2, SC6A3, CNTN2, PGCB, NEP, KCNA4, CD166, 5NTD, GSLG1, EWS, AP180, FSCN1, GDIB, GRIK5, GRID1, DDX5, HS105, ITIH3, IL1AP, CD47, KINH, KIF3B, LASP1, MYH10, MOG, NPM, PCBP2, CSPG2, DDX3Y, DLG4, RHOC, DAG1, DDX3X, SYPH, TICN1, NDUA4, NPTX1, NUP62, OMGP, HECAM, AOFA, ARP3B, SURF4, SYN2, CP3AD, H2B1H, GLPK, SDC3, GPDM, H2A2C, H2B2B, GRM7, GRM4, CLH1, K1549, GIT1, PKP4, PPR29, CNTN4, NLGN2, SV2C, THS7A, CE170, UBP7, BRNP2, SCMC3, LIGO3, DGKB, RPRD2, DPP10, S23IP, PPRC1, 2ABA, TNPO3, SIK3, U520, S39AA, TTYH3, XPO1, SPCS, KCRS, CSKI1, NRX3A, BCR, SARM1, PRRT3, TEFF1, RAB35, CA2D2, KCC2D, AT1A3, AT1A2, GNAS1, SDK2, WDFY3, NTRK3, RAD9B, DGLA, KCD12, MTMR5, UBE2O, CAND1, UBP34, RS9, 2ABB, H2B1C, TLN2, CSPG5, 2AAA, NP1L4, MTCH2, OPALI, CYFP1, TBB2A, HUWE1, IGS21, ROBO2, ACTN1, IGSF1, TR143, TPPP, OTUB1, KPBB, PP6R1, MAP6, ELP1, RRAGD, MRCKB, GABR2, CSMD3, EPT1, VAT1L, LRRC7, CAPS1, CYLD, AGRL1, AGRL3, CLAP1, AUXI, DAAM2, MADD, MFN2, NU214, UBE3C, PLXA4, FBX2, KCMF1, CBPM, GSTM7, AGFG2, LRC8A, HPLN4, VAC14, UBP2L, C2C2L, LRRT4, BDH, MK15, CNKR2, TENA, ASTN2, NEGR1, RAP2A, THEM6, SLIK5, SLIK4, SLIK3, SLIK2, NFASC, NRCAM, RHG32, SRGP3, EFTU, VGLU3, ERLN2, ROA3, SV2B, MIRO1, EFR3A, LRRT2, U2AF4, ENPP6, SYAC, FLRT3, CBLN2, LRTM2, HPCL4, COR2B, CMC1, ATLA1, NU107, RB39B, RB39A, ZN526, ANS1B, DLGP2, AHSA1, IPO5, NCEH1, LSAMP, CADM2, NOE2, ODP2, RBGPR, ECHA, SPA2L, SYNC, RL24, DAAM1, DMXL2, RLGPB, CLAP2, VMAT2, ARF2, NDRG4, ENPP4, HSDL1, RAP2C, GEPH, VATH, PMGT2, TTC12, AOFB, LRFN5, PIGT, CTL2, TENR, NLGN3, LRRT3, DYN3, LRC4C, ARHGA, SYFA, SI1L1, LCAP, EXOG, CERS6, SEP11, IKZF4, GP158, CWC22, VPS52, SCAI, ANK2, PDE10, PGM2L, SHFL, MIC60, WDR37, ABI1, SYNPO, T132C, GLT13, NED4L, RPB2, TCRG1, GNAL, H2B1K, H2B1P, H2A1F, H2A1H, H2A1K, OGT1, SYNJ1, SEPT8, MBOA7, PGP, NGEF, PYGB, COPA, MARK4, DOCK3, PLXB1, TXTP, AGRL2, TRHDE, R4RL1, RTN1, HS12A, K319L, DNM1L, AGRG1, PACS1, ABCF3, SDHA, HACD3, AGFG1, PAF1, IPO11, CCM2, MATR3, ATAT, LRRT1, LGI3, RPTOR, COL12, NAC2, THIL, EIF3L, MARE2, HNRPL, K0513, IQEC1, CACB4, SCPDL, BPHL, SNG3, EIF3C, H2AJ, DC1L1, S35A3, AP3M2, MUC18, UBQL1, PSPC1, NUP58, IGSF8, EXOC1, CACB1, CADM4, NUP85, SNP47, ACTY, WASF1, AMPB, MICU1, PSMD2, AT1A1, CDIPT, GD1L1, CC50A, HNRPU, REM2, MPCP, MARK1, CSPG4, SORC3, IPO4, SFPQ, BACH, S12A5, RAB14, SFXN3, ACLY, NDUS1, ITM2C, RMXL1, MIC25, ATPG, DDX1, MLP3A, UBAP2, ACSL6, NDUS2, ERLN1, DLG2, PI42C, IPO9, NDUV1, GRHPR, SRGP2, SRGP1, RAB4B, LRP1, WDR7, BRNP1, SYDC, TBB6, PDK3, TSN2, PDE2A, RPAB3, CSMD1, KCC2G, 2ABD, ATAD3, SFXN5, MYO5A, G37L1, RAP1B, SFXN1, NLGN1, NONO, RRAGC, TIP, MLF2, GAK, CDS2, NDUAA, ETFA, TNPO2, PTPRT, DNJA3, T121B, SF3B1, RIMS1, CNTP4, NTRI, PRP8, COX6C, MGST3, CNTP2, 6PGL, QCR8, NDUB4, RAB5A, GLRX3, AT5F1, S2546, MLP3B, 1433B, RL14, M2OM, UCRI, MIC19, PRPS2, NRX1A, MICU3, ARPC2, TBB2B, ROA0, CENPV, RL11, ILF2, TECR, RN181, BIEA, QCR1, OLA1, RL15, AL1B1, TOM70, MPC2, ODPB, MMS19, MGRN1, HNRPM, SCOT1, DYL2, RM28, RAB1B, LIGO1, RUFY3, MEII1, ATAD1, CUL5, GBRA4, TBB4A, GHC1, IDH3A, PRPS1, U2AF1, RL4, PSD12, SNAA, ATPO, BTBDH, QCR2, ALG2, AP2B1, RPN2, SUSD2, NDUA9, NDUS7, 6PGD, EIF3F, NDUS3, RAB13, XPO7, IPO7, NBEA, SORC2, VPS35, RPGF4, TBB3, XPO2, RTN3, LRBA, SPN90, TRIM2, DYHC1, LRP1B, LGI1, PRAF2, SV2A, SCAM5, NECT1, HYOU1, EXTL1, SORC1, DCLK1, MTOR, MINK1, ZN207, AP3B2, MY18A, RHOA, HPLN1, FAK2, NAGAB, COPG2, KI21A, SHRM3, PLEC, DREB, CMC2, EHD3, PLXB3, ADDA, DNJA2, GRM3, PCLO, SIA7A, ARP10, DCTN5, PLXC1, COPG1, GPC1, UBQL2, FBX6, SRR, AT2B2, CELR2, DEST, ARC1A, KAD1, GBRG1, GUAD, CBLN1, DGKE, VAS1, ADA22, ADA23, PEPL, CAD13, TEN1, TEN2, CUL1, ATRN, GLPK2, PDC6I, PFKAP, PYGM, SUCA, RBMX, GABR1, GSK3B, FPRP, E41L3, BUB3, CARM1, PSD13, CP46A, APC7, NCDN, ITB6, KCND2, NU160, HNRDL, SAE2, VATC1, VPP1, ARI1, CA2D3, SEPT3, AP3B1, STK39, HNRPC, DPP6, E41L1, SUCB1, SEPT5, GRIA4, GRIA3, HOME1
Species: Mus musculus
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Tramutola A, Sharma N, Barone E, Lanzillotta C, Castellani A, Iavarone F, Vincenzoni F, Castagnola M, Butterfield DA, Gaetani S, Cassano T, Perluigi M, Di Domenico F. Proteomic identification of altered protein O-GlcNAcylation in a triple transgenic mouse model of Alzheimer's disease. Biochimica et biophysica acta. Molecular basis of disease 2018 1864(10) 30031227
Abstract:
PET scan analysis demonstrated the early reduction of cerebral glucose metabolism in Alzheimer disease (AD) patients that can make neurons vulnerable to damage via the alteration of the hexosamine biosynthetic pathway (HBP). Defective HBP leads to flawed protein O-GlcNAcylation coupled, by a mutual inverse relationship, with increased protein phosphorylation on Ser/Thr residues. Altered O-GlcNAcylation of Tau and APP have been reported in AD and is closely related with pathology onset and progression. In addition, type 2 diabetes patients show an altered O-GlcNAcylation/phosphorylation that might represent a link between metabolic defects and AD progression. Our study aimed to decipher the specific protein targets of altered O-GlcNAcylation in brain of 12-month-old 3×Tg-AD mice compared with age-matched non-Tg mice. Hence, we analysed the global O-GlcNAc levels, the levels and activity of OGT and OGA, the enzymes controlling its cycling and protein specific O-GlcNAc levels using a bi-dimensional electrophoresis (2DE) approach. Our data demonstrate the alteration of OGT and OGA activation coupled with the decrease of total O-GlcNAcylation levels. Data from proteomics analysis led to the identification of several proteins with reduced O-GlcNAcylation levels, which belong to key pathways involved in the progression of AD such as neuronal structure, protein degradation and glucose metabolism. In parallel, we analysed the O-GlcNAcylation/phosphorylation ratio of IRS1 and AKT, whose alterations may contribute to insulin resistance and reduced glucose uptake. Our findings may contribute to better understand the role of altered protein O-GlcNAcylation profile in AD, by possibly identifying novel mechanisms of disease progression related to glucose hypometabolism.
O-GlcNAc proteins:
DPYL2, ULK1, MDHM, NFL, G3P, ENOA, AKT1, IRS1, 1433E, RAN, TBA1C, ELOC, MPRIP, TDRD9, CCD63, CNTP2
Species: Mus musculus
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