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Xu SL, Chalkley RJ, Maynard JC, Wang W, Ni W, Jiang X, Shin K, Cheng L, Savage D, Hühmer AF, Burlingame AL, Wang ZY. Proteomic analysis reveals O-GlcNAc modification on proteins with key regulatory functions in Arabidopsis. Proceedings of the National Academy of Sciences of the United States of America 2017 114(8) 28154133
Genetic studies have shown essential functions of O-linked N-acetylglucosamine (O-GlcNAc) modification in plants. However, the proteins and sites subject to this posttranslational modification are largely unknown. Here, we report a large-scale proteomic identification of O-GlcNAc-modified proteins and sites in the model plant Arabidopsis thaliana Using lectin weak affinity chromatography to enrich modified peptides, followed by mass spectrometry, we identified 971 O-GlcNAc-modified peptides belonging to 262 proteins. The modified proteins are involved in cellular regulatory processes, including transcription, translation, epigenetic gene regulation, and signal transduction. Many proteins have functions in developmental and physiological processes specific to plants, such as hormone responses and flower development. Mass spectrometric analysis of phosphopeptides from the same samples showed that a large number of peptides could be modified by either O-GlcNAcylation or phosphorylation, but cooccurrence of the two modifications in the same peptide molecule was rare. Our study generates a snapshot of the O-GlcNAc modification landscape in plants, indicating functions in many cellular regulation pathways and providing a powerful resource for further dissecting these functions at the molecular level.
O-GlcNAc proteins:
A0A178U7T2, A0A178U808, A0A178U8C4, A0A178U9U2, A0A178UA87, A0A178UAK4, A0A178UBS4, A0A178UEJ0, A0A178UET6, A0A178UG83, A0A178UGM3, A0A178UJQ0, A0A178UKB4, A0A178ULB6, A0A178UM22, A0A178UNF9, A0A178UTT8, A0A178UVW2, A0A178UW70, A0A178UXN3, A0A178UZJ4, A0A178V3S5, A0A178V4Y0, A0A178V7N5, A0A178V7S6, A0A178V9D9, A0A178VCA9, A0A178VF25, A0A178VGI0, A0A178VGK7, A0A178VIB4, A0A178VL84, A0A178VMH9, A0A178VN08, A0A178VNI5, A0A178VQ37, A0A178VQ53, A0A178VQY8, A0A178VS21, A0A178VTI3, A0A178VTN0, A0A178VUZ4, A0A178VWA9, A0A178VXV2, A0A178VZ34, A0A178W0U1, A0A178W4Q8, A0A178W585, A0A178W9L4, A0A178WAQ6, A0A178WCT2, A0A178WD70, A0A178WK45, A0A178WKM1, A0A1I9LM16, A0A1I9LM89, A0A1I9LNN0, A0A1I9LPG3, A0A1I9LPZ1, A0A1I9LQ18, A0A1I9LQ49, A0A1I9LQK5, A0A1I9LR14, A0A1I9LR16, A0A1I9LRR1, A0A1I9LRS8, A0A1I9LT31, A0A1I9LT54, A0A1I9LT69, A0A1I9LTD0, A0A1I9LTD1, A0A1I9LTL7, A0A1I9LTL8, A0A1I9LTL9, A0A1P8AM87, A0A1P8ANR5, A0A1P8APV6, A0A1P8APZ6, A0A1P8AQ08, A0A1P8AQI9, A0A1P8AQR8, A0A1P8ARB7, A0A1P8ARJ2, A0A1P8ARU4, A0A1P8ARV7, A0A1P8ARV8, A0A1P8AS00, ECT4, A0A1P8AS28, A0A1P8ASD0, A0A1P8ASK1, A0A1P8ASQ6, A0A1P8AT85, A0A1P8ATA1, A0A1P8ATG6, A0A1P8AUP4, A0A1P8AUP7, A0A1P8AWC8, A0A1P8AXG2, A0A1P8AXN6, A0A1P8AXY9, A0A1P8AYH5, A0A1P8AYN4, A0A1P8B0K6, A0A1P8B0M2, A0A1P8B1D0, A0A1P8B1H7, A0A1P8B1J3, A0A1P8B1N0, A0A1P8B1N9, A0A1P8B1P6, A0A1P8B1P9, A0A1P8B2G0, A0A1P8B2Y3, A0A1P8B4Z4, A0A1P8B569, A0A1P8B6K1, A0A1P8B6K2, A0A1P8B739, A0A1P8B753, A0A1P8B770, A0A1P8B7E4, A0A1P8B7F4, A0A1P8B889, A0A1P8B895, A0A1P8B8G6, A0A1P8B9E0, A0A1P8B9Q7, A0A1P8B9R0, A0A1P8BAL0, A0A1P8BBS5, A0A1P8BBU0, A0A1P8BBV1, A0A1P8BBW1, A0A1P8BCJ2, A0A1P8BCM2, A0A1P8BCS5, A0A1P8BDJ5, A0A1P8BDM9, A0A1P8BES5, A0A1P8BET4, A0A1P8BF20, A0A1P8BF26, A0A1P8BF50, A0A1P8BFA1, A0A1P8BFW7, A0A1P8BGW8, A0A2H1ZEI5, A0A2H1ZEK0, A0A384KDE2, A0A384KK08, A0A384KLV2, A0A384KRL7, A0A384L4P3, A0A384LCJ3, A0A384LD93, A0A384LHA9, A0A384LIC3, A0A384LL64, NSRA, GIP1L, A4FVS4, A8MPR6, A8MQK8, A8MQL9, A8MR17, A8MR45, A8MR97, SMG7, B3H4M3, NEDD1, B3H6D1, B3H7F6, B3H7M2, B6DT55, B9DH05, SP13A, C0Z2N6, C0Z387, SUV2, F4HNU1, F4HPG4, F4HSW8, F4HVV6, F4HVV7, F4HWS5, F4HXP0, F4HY32, F4I0C1, F4I0C2, F4I1G1, NP214, F4I2D0, RB47A, F4I4I8, F4I982, F4I983, F4IC79, PHL, F4IGJ9, F4IHK9, SYD, F4IIR1, FLX, F4IMY0, RSA1, F4IWD6, F4J043, PATH1, F4J0L7, F4J0P2, F4J7C7, VIR, F4J912, SAC3B, F4JB30, F4JDC2, F4JDC3, F4JDC5, F4JFN7, F4JKV2, F4JLR7, F4JP43, F4JPL0, F4JPL1, F4JPL2, F4JRD9, F4JUD2, F4JV21, F4JWJ6, F4JWJ7, F4JWP8, F4JXH8, PIAL2, F4K3D6, F4K3Y7, F4K402, F4K465, F4K4Y6, F4K5M5, STKLU, F4K9A6, CHR4, F4KDJ9, F4KDM9, HEN4, F4KDN1, SRC2, FCA, PABP4, AHL10, O23146, IF4E1, NFYB3, O48697, O48807, LUH, AHL2, O64768, CID7, CAB25, TOL6, O81015, O82263, NGA4, NGA1, KNAT3, DRMH1, ARFG, C3H30, RBG7, QKIL1, Q0WP31, PAT1H, Q0WQD5, Q0WTU8, Q0WUK0, Q0WUY5, TBA4, Q0WVJ1, SLK1, Q1G3K2, Q1JPL5, TPR4, LUMI, AGL11, Q3EDL2, DOF37, MED8, Q56W68, Q56WR5, Q56WT6, Q56X31, Q56YP1, Q56YR0, C3H67, Q66GK1, EPN2, BRM, Q6ID24, FY, Q6NM13, Q6RF52, WOX4, IDD10, IF4G, MED25, DOF18, Q84TH3, C3H32, Q84WZ4, CTF77, SPL8, TGH, C3H33, Q8GYC9, QKIL4, Q8GYU8, Q8GZ14, KTN84, Q8H1P8, CID3, AHL11, Q8L9Z3, DOF46, RL51, RLA11, DOF54, Q8LFT9, CPL3, Q8LPI8, FPA, LRP1B, Q8RWV9, AGD14, ARFS, GEM, AML5, Q8VY17, Q8VYH3, AHL1, Q8VYZ1, Q8VZL1, Q8VZM2, GIP1, RNP1, SEUSS, AML1, Q8W4K6, Q8W569, IF5A2, WRK20, Q93XY1, EPN3, Q93YU3, TCP14, Q93ZW3, TA12B, AHL13, Q940N4, Q940N7, C3H37, Q949Z3, TPL, SLK2, PATH2, C3H55, LRP1C, TIC, SPY, TCP8, Q9C584, MPK18, HAC1, Q9C7A7, Q9C7W1, TRO, Q9C9H8, Y3857, NUP1, Y1385, Q9FF08, ARFH, Q9FH07, FLXL4, DCP5L, Q9FHN1, Q9FIA3, ZHD10, Q9FJ56, Q9FJC2, Q9FKL3, ZHD1, QKIL2, SUMO2, Q9FM47, Q9FM71, EXA1, Q9FNB9, C3H51, Q9FPE7, VIP2, XRN4, ZHD5, SPT, LEUNG, HAC12, PABP8, PEX14, SPL11, EIF3A, Q9LDZ8, HAC5, BPA1, ZHD9, C3H38, ECT2, PUM5, UBA2C, Q9LM78, Q9LM88, Q9LNA8, BH013, Q9LP92, Q9LQ83, C3H12, IDD11, TPR2, Q9LSD7, Q9LSK7, VCS, VCR, Q9LVK1, IDD1, ZHD8, C3H56, AML4, Q9LZQ7, BIG2, Q9M0M3, DNMT2, Q9M0Y0, Q9M141, Q9M1E4, RH52, AHL15, Q9M369, AI5L6, Q9M9Z1, TCP3, NGA3, EIN2, SPL2, IF4B2, MOS1, Q9SCK9, C3H44, Q9SD86, Q9SD87, RH45, Q9SFD3, WRKY1, BZP30, C3H19, AML2, Q9SK04, Q9SK05, Q9SKR5, PUR, Q9SN77, RH40, PUM4, PRP8A, C3H43, SPT51, Q9STX4, Q9SU22, Q9SU23, Q9SU99, Q9SUE8, C3H46, NINJA, BLH2, R47CP, Q9SZ51, TCX5, PEP, PCKA1, FB230, ARFF, ARFD, Q9ZU48, IDD5, FRS3, QKIL3, PUM2, PUM1
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