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Yu SB, Wang H, Sanchez RG, Carlson NM, Nguyen K, Zhang A, Papich ZD, Abushawish AA, Whiddon Z, Matysik W, Zhang J, Whisenant TC, Ghassemian M, Koberstein JN, Stewart ML, Myers SA, Pekkurnaz G. Neuronal activity-driven O-GlcNAcylation promotes mitochondrial plasticity. Developmental cell 2024 38843836
Abstract:
Neuronal activity is an energy-intensive process that is largely sustained by instantaneous fuel utilization and ATP synthesis. However, how neurons couple ATP synthesis rate to fuel availability is largely unknown. Here, we demonstrate that the metabolic sensor enzyme O-linked N-acetyl glucosamine (O-GlcNAc) transferase regulates neuronal activity-driven mitochondrial bioenergetics in hippocampal and cortical neurons. We show that neuronal activity upregulates O-GlcNAcylation in mitochondria. Mitochondrial O-GlcNAcylation is promoted by activity-driven glucose consumption, which allows neurons to compensate for high energy expenditure based on fuel availability. To determine the proteins that are responsible for these adjustments, we mapped the mitochondrial O-GlcNAcome of neurons. Finally, we determine that neurons fail to meet activity-driven metabolic demand when O-GlcNAcylation dynamics are prevented. Our findings suggest that O-GlcNAcylation provides a fuel-dependent feedforward control mechanism in neurons to optimize mitochondrial performance based on neuronal activity. This mechanism thereby couples neuronal metabolism to mitochondrial bioenergetics and plays a key role in sustaining energy homeostasis.
O-GlcNAc proteins:
A0A096MIX2, A0A0G2JUA5, IQEC1, A0A0G2JUI5, A0A0G2JUT7, A0A0G2JVC2, A0A0G2JVU1, A0A0G2JVW3, A0A0G2JVZ6, A0A0G2JW69, A0A0G2JWG6, A0A0G2JWK6, A0A0G2JXD0, A0A0G2JXD6, A0A0G2JXE4, TRI46, A0A0G2JXZ9, A0A0G2JY48, A0A0G2JY73, A0A0G2JYE0, A0A0G2JYI7, A0A0G2JYU3, A0A0G2JZ52, A0A0G2JZ94, A0A0G2JZA1, A0A0G2JZA7, A0A0G2JZB7, A0A0G2JZH9, A0A0G2JZX5, A0A0G2K0W3, ABCA3, A0A0G2K2B5, A0A0G2K2Y2, A0A0G2K315, A0A0G2K3H2, A0A0G2K459, A0A0G2K490, A0A0G2K548, A0A0G2K5E4, A0A0G2K5L1, GHC1, A0A0G2K618, A0A0G2K654, A0A0G2K6F2, A0A0G2K6T9, A0A0G2K719, A0A0G2K782, A0A0G2K7L2, A0A0G2K7P9, A0A0G2K847, A0A0G2K8I5, A0A0G2K8S6, A0A0G2K929, A0A0G2K999, A0A0G2K9J0, A0A0G2KAE2, A0A0G2KBB9, A0A0H2UHM7, A0A0U1RS25, A0A140TAA1, NUMBL, PBIP1, A5I9F0, ROA2, H2AJ, B0BN30, B0BNK1, LRFN3, B0K026, FLRT3, B1H2A6, B1WC18, ACAD9, BRSK1, B2GUY8, B2GV74, PTPRE, B2RYB1, B2RYC9, B2RYD7, CTL2, B5DEJ9, TTC17, B5DEZ8, SNPH, B5DFC3, D3Z981, D3Z9D0, D3Z9L0, D3ZA31, ATPK, D3ZAG0, LRRT3, D3ZB81, D3ZBM3, D3ZC55, D3ZC56, D3ZC81, D3ZCT7, D3ZD23, D3ZD73, D3ZDX5, D3ZE26, D3ZEH1, SIDT2, D3ZEI4, D3ZEK5, D3ZES7, D3ZFQ8, D3ZFT1, D3ZG43, D3ZH14, D3ZH36, D3ZH41, D3ZHA1, D3ZHG3, D3ZHL1, MACF1, D3ZK41, D3ZKV7, D3ZLE2, D3ZMJ7, D3ZN27, HCFC1, D3ZN99, D3ZPJ0, D3ZPN0, PLXA3, D3ZQ57, TRIM2, D3ZQM3, D3ZQN7, D3ZRH1, D3ZRN3, D3ZSY8, D3ZT20, D3ZT36, D3ZT47, D3ZTG3, D3ZTL0, D3ZTW6, D3ZU13, D3ZUJ8, D3ZUM4, D3ZUY8, D3ZW09, D3ZW15, D3ZW19, D3ZWP6, D3ZWQ0, D3ZXQ2, D3ZXX3, D3ZYD7, D3ZYM4, D3ZYR4, D3ZYS7, D3ZZK3, D3ZZU4, D4A062, D4A0A1, D4A1G8, LRFN5, D4A2H4, D4A2I9, D4A2Q3, D4A3H5, D4A3L3, D4A3N4, D4A435, D4A507, D4A517, D4A567, D4A5F1, D4A5I4, D4A5X7, D4A604, D4A628, D4A644, LRRT1, D4A6G2, D4A6H8, MGLYR, D4A6T9, D4A732, D4A758, D4A7M0, D4A7Y4, D4A831, D4A833, D4A885, D4A8N1, D4A9F4, D4A9U6, D4AA63, D4AA77, D4ABA9, D4ABI7, LRFN4, D4ACK1, PCD16, D4AD89, D4ADS4, D4ADU2, D4AE63, D4AEB3, E9PT51, E9PT53, E9PT92, E9PTA4, E9PTR4, F1LM47, F1LMW0, F1LNL3, F1LP13, F1LPD7, F1LPJ1, F1LPV0, F1LR12, F1LS01, F1LT36, F1LUC0, F1LUT4, F1LUZ4, F1LV44, F1LVL5, S2512, F1LXC7, F1LXD6, F1LYJ8, FARP1, F1LZ38, F1LZB7, F1M049, F1M1E4, F1M2D4, F1M2E9, F1M2K6, F1M3H3, F1M3J7, F1M3P6, F1M3T8, F1M4B6, F1M4J1, F1M5G8, F1M6P8, F1M853, F1M8K0, F1M949, F1MA42, F1MA97, F1MAK3, F1MAP4, F1MAS4, F7EL93, F7EYB9, F7F3I7, G3V667, G3V6K6, G3V6N7, G3V6U3, G3V728, G3V765, G3V7D4, G3V7K5, G3V7N0, G3V7V3, G3V824, G3V881, G3V886, G3V8D0, LRP1, PGLT1, M0R4G0, M0R557, RN157, M0R5P8, M0R5T4, M0R6E0, M0R715, M0R757, M0R7B4, M0R868, M0R9U3, M0RAP5, M0RB22, M0RC17, M0RDA4, MARK1, MARK2, SYT11, DCLK1, CD166, CTND2, NRP2, ACSL4, NPTXR, ENTP2, C1QBP, DNJA2, PICAL, SEM6B, TRIM3, ANK3, CELR3, SLIT1, SLIT3, VKGC, PACS1, BSN, GABR2, PTN23, AGRL1, AGRL2, CATB, OX2G, ROA1, ENOA, G3P, GNAI2, AT1A1, AT1A2, AT1A3, BIP, GDN, RPN1, AT1B1, CPSM, SYPH, KCC2B, SYN1, MAP1S, LRFN1, LRC4B, ATPB, KCC2A, CLH1, AT2B1, AT2B2, AT2A2, KCC2G, SUCA, RS14, NCAM1, AT1B2, PRIO, LAMP1, INSR, MTAP2, MAP1B, GBRB1, KCC2D, H14, ATPA, S25A3, SPTN1, ABCD3, LAMP2, RL9, RL35, THIL, GSK3B, RL27A, AP2A2, GBRG2, CSK21, GRIA1, GRIA2, GRIA3, GRIA4, AT5F1, NFL, GNAZ, RLA0, GBRA5, GBRA3, CNR1, PPAL, PGFRA, EDNRB, SYT1, PERI, AINX, GBRA2, RL17, RS5, IGF1R, CATD, AKAP5, EAA1, RPN2, VPP1, AGRIN, KAPCA, RS2, DCTN1, TCPA, SC6A9, BDH, RS9, SERPH, ITPR1, PLEC, PFKAL, VIME, ATP5H, GRM2, GRM3, GRM4, GRM5, EAA2, S6A11, EZRI, TXTP, CPT1A, QCR2, HS90B, MAP1A, GRM7, ATPG, NMDZ1, DYHC1, MPC2, ANPRC, GRIK2, GRIK3, DPP6, GFAP, PFKAM, PFKAP, SYT5, DPYL2, NPTX1, S1PR1, GRP75, ITB1, RS3A, AP1B1, MOT1, P4HA1, CACB1, CA2D1, GBB2, AT12A, EPHA5, NCAN, PGCB, OGT1, IDHP, GNAO, ACTB, ARF3, STXB1, HNRPK, 1433G, RS7, PP1B, RS16, 1433E, RS23, RS13, RS11, EF1A1, RS4X, RL23A, RS6, H4, GBRA1, RAN, RL23, RS24, RS3, RL32, RL11, AP2B1, RS27A, RL40, HSP7C, CYH2, DNJA1, GBRB3, GBRB2, ACTC, TBA1A, NEUA, TBB5, APC, MFGM, NUP54, FOLH1, IF2G, RL24, ENPP5, AP2M1, H33, RMXRL, STIM1, TBB2A, MDGA1, EFTU, PURA, MET, CNTN5, NPTN, GPAT1, NEO1, LCAP, KC1A, NFASC, NRCAM, M2OM, SHPS1, CD47, CNTP1, S27A1, DHB4, CSPG4, NMDE2, CAC1B, SV2A, PTPRA, NTRK3, TENR, L1CAM, ADT1, KC1D, ATPO, TGFB2, NRX3A, CAC1E, ADT2, MYPT1, ADA10, K2C8, Q14U74, KINH, Q32KJ5, MIC60, ATAD3, TBB2B, LONP2, AMZ2, LRFN2, Q498C9, DJC10, CARM1, K2C6A, TBB3, MACOI, S39A6, RBMX, Q4V8H7, LRC8A, Q505J7, SYFA, S2551, ZFR, PGAM5, Q566E4, NOE2, NDUA9, ARHG2, PLD3, NONO, FA98A, RM16, CAPR1, DCLK2, PMGT2, NSDHL, ITM2C, LRC59, DRS7B, Q5RK08, Q5U2P5, Q5U302, LRC8D, KIF2B, Q5XIA6, ECSIT, TBA4A, Q5XIH3, EPDR1, TMX2, MGRN1, ECHB, NOE1, GSLG1, NMDE4, PTPRZ, SYT7, KC1G3, FPRP, Q62797, CNTN4, GGH, NLGN2, NLGN3, NELL2, DPYL1, DPYL3, ERBB4, SCNAA, CAMKV, Q63116, CNTN1, GRIK5, PHLB1, MYO9B, NRX1A, NRX2A, MAP6, NTRK2, HYOU1, S12A5, SFXN1, OST48, NDUS2, DDX1, TECR, ECHA, AT1A4, AT2B4, PTPRF, PTPRS, PACC1, FACR1, C2D1A, ENPL, NDUS1, S12A9, TBA3, SIR5, SIAT9, HEXB, Q6AY21, SCPDL, Q6AYI1, Q6AYM8, RTCB, ABD12, K1C15, K1C10, K2C4, K2C1B, K22E, K2C73, K2C1, TS101, PRC2A, ABHGA, PLAK, Q6P3V8, TCPG, MEST, K2C5, DAB2P, Q6P762, LYAG, DHB12, TBB4B, RL10, DPP10, GNA13, KIF5A, ROA3, RS27, PGAP1, PCDA4, ANR46, 4F2, PLPR3, PLPR4, SSRA, QCR8, R4RL2, T132A, SE1L1, MAST1, TFB1M, RB6I2, SFXN5, CA2D3, AGAP2, NICA, SGPL1, Q8CJE3, BRNP2, ERC2, AGRG1, L2GL1, LGI1, Q8R490, TIP, FAT3, AFAP1, MARK3, CCG8, KHDR1, BRNP1, TFR1, ATRN, CLAP2, RTN4R, Q99PS2, PABP1, XYLT1, SO1C1, KDIS, TPP1, CSPG2, DCX, PSD1, ABCA2, CBPD, SFXN3, WNK1, RIMS1, RIMS2, CHD8, HNRPD, HCN4, HCN3, HCN2, HCN1, PCLO, TAOK2, SYGP1, NRP1, SRCN1, MEGF8, CELR2, S22AN, PDZD2, CXAR, TEN2, PODXL, CTNB1, SHAN1, KIF2A, SLIT2, NEGR1, GABR1, FADS2, TMM33, AGRL3, RPGF4, FLOT1, MYO9A, CADH2, HOME1, DHCR7
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Hédou J, Bastide B, Page A, Michalski JC, Morelle W. Mapping of O-linked beta-N-acetylglucosamine modification sites in key contractile proteins of rat skeletal muscle. Proteomics 2009 9(8) 19322778
Abstract:
O-linked beta-N-acetylglucosamine (O-GlcNAc) is a widespread modification of serine/threonine residues of nucleocytoplasmic proteins. Recently, several key contractile proteins in rat skeletal muscle (i.e., myosin heavy and light chains and actin) were identified as O-GlcNAc modified. Moreover, it was demonstrated that O-GlcNAc moieties involved in contractile protein interactions could modulate Ca(2+) activation parameters of contraction. In order to better understand how O-GlcNAc can modulate the contractile activity of muscle fibers, we decided to identify the sites of O-GlcNAc modification in purified contractile protein homogenates. Using an MS-based method that relies on mild beta-elimination followed by Michael addition of DTT (BEMAD), we determined the localization of one O-GlcNAc site in the subdomain four of actin and four O-GlcNAc sites in the light meromyosin region of myosin heavy chains (MHC). According to previous reports concerning the role of these regions, our data suggest that O-GlcNAc sites might modulate the actin-tropomyosin interaction, and be involved in MHC polymerization or interactions between MHC and other contractile proteins. Thus, the results suggest that this PTM might be involved in protein-protein interactions but could also modulate the contractile properties of skeletal muscle.
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Clark PM, Dweck JF, Mason DE, Hart CR, Buck SB, Peters EC, Agnew BJ, Hsieh-Wilson LC. Direct in-gel fluorescence detection and cellular imaging of O-GlcNAc-modified proteins. Journal of the American Chemical Society 2008 130(35) 18683930
Abstract:
We report an advanced chemoenzymatic strategy for the direct fluorescence detection, proteomic analysis, and cellular imaging of O-GlcNAc-modified proteins. O-GlcNAc residues are selectively labeled with fluorescent or biotin tags using an engineered galactosyltransferase enzyme and [3 + 2] azide-alkyne cycloaddition chemistry. We demonstrate that this approach can be used for direct in-gel detection and mass spectrometric identification of O-GlcNAc proteins, identifying 146 novel glycoproteins from the mammalian brain. Furthermore, we show that the method can be exploited to quantify dynamic changes in cellular O-GlcNAc levels and to image O-GlcNAc-glycosylated proteins within cells. As such, this strategy enables studies of O-GlcNAc glycosylation that were previously inaccessible and provides a new tool for uncovering the physiological functions of O-GlcNAc.
Khidekel N, Ficarro SB, Clark PM, Bryan MC, Swaney DL, Rexach JE, Sun YE, Coon JJ, Peters EC, Hsieh-Wilson LC. Probing the dynamics of O-GlcNAc glycosylation in the brain using quantitative proteomics. Nature chemical biology 2007 3(6) 17496889
Abstract:
The addition of the monosaccharide beta-N-acetyl-D-glucosamine to proteins (O-GlcNAc glycosylation) is an intracellular, post-translational modification that shares features with phosphorylation. Understanding the cellular mechanisms and signaling pathways that regulate O-GlcNAc glycosylation has been challenging because of the difficulty of detecting and quantifying the modification. Here, we describe a new strategy for monitoring the dynamics of O-GlcNAc glycosylation using quantitative mass spectrometry-based proteomics. Our method, which we have termed quantitative isotopic and chemoenzymatic tagging (QUIC-Tag), combines selective, chemoenzymatic tagging of O-GlcNAc proteins with an efficient isotopic labeling strategy. Using the method, we detect changes in O-GlcNAc glycosylation on several proteins involved in the regulation of transcription and mRNA translocation. We also provide the first evidence that O-GlcNAc glycosylation is dynamically modulated by excitatory stimulation of the brain in vivo. Finally, we use electron-transfer dissociation mass spectrometry to identify exact sites of O-GlcNAc modification. Together, our studies suggest that O-GlcNAc glycosylation occurs reversibly in neurons and, akin to phosphorylation, may have important roles in mediating the communication between neurons.
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Vosseller K, Trinidad JC, Chalkley RJ, Specht CG, Thalhammer A, Lynn AJ, Snedecor JO, Guan S, Medzihradszky KF, Maltby DA, Schoepfer R, Burlingame AL. O-linked N-acetylglucosamine proteomics of postsynaptic density preparations using lectin weak affinity chromatography and mass spectrometry. Molecular & cellular proteomics : MCP 2006 5(5) 16452088
Abstract:
O-GlcNAc is a widespread dynamic carbohydrate modification of cytosolic and nuclear proteins with features analogous to phosphorylation. O-GlcNAc acts critically in many cellular processes, including signal transduction, protein degradation, and regulation of gene expression. However, the study of its specific regulatory functions has been limited by difficulties in mapping sites of O-GlcNAc modification. We report methods for direct enrichment and identification of in vivo O-GlcNAc-modified peptides through lectin weak affinity chromatography (LWAC) and mass spectrometry. The effectiveness of this strategy on complex peptide mixtures was demonstrated through enrichment of 145 unique O-GlcNAc-modified peptides from a postsynaptic density preparation. 65 of these O-GlcNAc-modified peptides were sequenced and belonged to proteins with diverse functions in synaptic transmission. Beta-elimination/Michael addition, MS(3) on O-GlcNAc neutral loss ions, and electron capture dissociation were shown to facilitate analysis of O-GlcNAc-modified peptides/sites from lectin weak affinity chromatography enriched postsynaptic density samples. Bassoon and Piccolo, proteins critical to synapse assembly and vesicle docking, were extensively modified by O-GlcNAc. In some cases, O-GlcNAc was mapped to peptides previously identified as phosphorylated, indicating potential interplay between these modifications. Shared substrate amino acid context was apparent in subsets of O-GlcNAc-modified peptides, including "PVST" and a novel "TTA" motif (two hydroxyl-containing amino acids adjacent to an alanine). The results suggest specific roles for O-GlcNAc modification in synaptic transmission, establish a basis for site-specific regulatory studies, and provide methods that will facilitate O-GlcNAc proteome analysis across a wide variety of cells and tissues.
O-GlcNAc proteins:
SKT, SYGP1, ANK3, CTND2, BSN, SYN1, NFL, NFM, AINX, MRTFB, SRBS1, TPPP, SHAN2, EMSY, SYNPO, PCLO
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Khidekel N, Ficarro SB, Peters EC, Hsieh-Wilson LC. Exploring the O-GlcNAc proteome: direct identification of O-GlcNAc-modified proteins from the brain. Proceedings of the National Academy of Sciences of the United States of America 2004 101(36) 15340146
Abstract:
The covalent modification of intracellular proteins by O-linked beta-N-acetylglucosamine (O-GlcNAc) is emerging as a crucial regulatory posttranslational modification akin to phosphorylation. Numerous studies point to the significance of O-GlcNAc in cellular processes such as nutrient sensing, protein degradation, and gene expression. Despite its importance, the breadth and functional roles of O-GlcNAc are only beginning to be elucidated. Advances in our understanding will require the development of new strategies for the detection and study of O-GlcNAc-modified proteins in vivo. Herein we report the direct, high-throughput analysis of O-GlcNAc-glycosylated proteins from the mammalian brain. The proteins were identified by using a chemoenzymatic approach that exploits an engineered galactosyltransferase enzyme to selectively label O-GlcNAc proteins with a ketone-biotin tag. The tag permits enrichment of low-abundance O-GlcNAc species from complex mixtures and localization of the modification to short amino acid sequences. Using this approach, we discovered 25 O-GlcNAc-glycosylated proteins from the brain, including regulatory proteins associated with gene expression, neuronal signaling, and synaptic plasticity. The functional diversity represented by this set of proteins suggests an expanded role for O-GlcNAc in regulating neuronal function. Moreover, the chemoenzymatic strategy described here should prove valuable for identifying O-GlcNAc-modified proteins in various tissues and facilitate studies of the physiological significance of O-GlcNAc across the proteome.
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