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Soria LR, Makris G, D'Alessio AM, De Angelis A, Boffa I, Pravata VM, Rüfenacht V, Attanasio S, Nusco E, Arena P, Ferenbach AT, Paris D, Cuomo P, Motta A, Nitzahn M, Lipshutz GS, Martínez-Pizarro A, Richard E, Desviat LR, Häberle J, van Aalten DMF, Brunetti-Pierri N. O-GlcNAcylation enhances CPS1 catalytic efficiency for ammonia and promotes ureagenesis. Nature communications 2022 13(1) 36064721
Abstract:
Life-threatening hyperammonemia occurs in both inherited and acquired liver diseases affecting ureagenesis, the main pathway for detoxification of neurotoxic ammonia in mammals. Protein O-GlcNAcylation is a reversible and nutrient-sensitive post-translational modification using as substrate UDP-GlcNAc, the end-product of hexosamine biosynthesis pathway. Here we show that increased liver UDP-GlcNAc during hyperammonemia increases protein O-GlcNAcylation and enhances ureagenesis. Mechanistically, O-GlcNAcylation on specific threonine residues increased the catalytic efficiency for ammonia of carbamoyl phosphate synthetase 1 (CPS1), the rate-limiting enzyme in ureagenesis. Pharmacological inhibition of O-GlcNAcase, the enzyme removing O-GlcNAc from proteins, resulted in clinically relevant reductions of systemic ammonia in both genetic (hypomorphic mouse model of propionic acidemia) and acquired (thioacetamide-induced acute liver failure) mouse models of liver diseases. In conclusion, by fine-tuned control of ammonia entry into ureagenesis, hepatic O-GlcNAcylation of CPS1 increases ammonia detoxification and is a novel target for therapy of hyperammonemia in both genetic and acquired diseases.
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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.