Electrophilic probes for deciphering substrate recognition by O-GlcNAc transferase.
Electrophilic probes for deciphering substrate recognition by O-GlcNAc transferase.
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DOI:
10.1038/nchembio.2494
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发表时间:
2017-12
影响因子:
14.8
通讯作者:
Jiang J
中科院分区:
文献类型:
--
作者:
Hu CW;Worth M;Fan D;Li B;Li H;Lu L;Zhong X;Lin Z;Wei L;Ge Y;Li L;Jiang J
O-linked β-N-acetylglucosamine (O-GlcNAc) transferase (OGT) is an essential human glycosyltransferase that adds O-GlcNAc modifications on numerous proteins. However, little is known about how OGT recognizes various protein substrates. Here we report GlcNAc electrophilic probes (GEPs) to expedite the characterization of OGT-substrate recognition. Data from mass spectrometry, X-ray crystallization, and biochemical and radiolabeled kinetic assays support the application of GEPs to rapidly report the impacts of OGT mutations on protein substrate or sugar binding and to discover OGT residues crucial for protein recognition. Interestingly, we found that the same residues on the inner surface of the N-terminal domain contribute to OGT interactions with different protein substrates. By tuning reaction conditions, a GEP enables crosslinking of OGT with acceptor substrates in situ, affording a unique method to discover genuine substrates that weakly or transiently interact with OGT. Hence, GEPs provide new strategies to dissect OGT-substrate binding and recognition.
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影响因子:
4.8
作者:
Kreppel, LK;Hart, GW
通讯作者:
Hart, GW
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
DOI:
10.1126/science.1243990
发表时间:
2013-12-06
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Lazarus MB;Jiang J;Kapuria V;Bhuiyan T;Janetzko J;Zandberg WF;Vocadlo DJ;Herr W;Walker S
通讯作者:
Walker S
影响因子:
4.3
作者:
Lazarus, BD;Love, DC;Hanover, JA
通讯作者:
Hanover, JA
影响因子:
16.6
作者:
Hart GW;Slawson C;Ramirez-Correa G;Lagerlof O
通讯作者:
Lagerlof O