Structural insights into the substrate binding adaptability and specificity of human O-GlcNAcase.
Structural insights into the substrate binding adaptability and specificity of human O-GlcNAcase.
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DOI:
10.1038/s41467-017-00865-1
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发表时间:
2017-09-22
影响因子:
16.6
通讯作者:
Jiang J
中科院分区:
文献类型:
--
作者:
Li B;Li H;Hu CW;Jiang J
The O-linked β-N-acetyl glucosamine (O-GlcNAc) modification dynamically regulates the functions of numerous proteins. A single human enzyme O-linked β-N-acetyl glucosaminase (O-GlcNAcase or OGA) hydrolyzes this modification. To date, it remains largely unknown how OGA recognizes various substrates. Here we report the structures of OGA in complex with each of four distinct glycopeptide substrates that contain a single O-GlcNAc modification on a serine or threonine residue. Intriguingly, these glycopeptides bind in a bidirectional yet conserved conformation within the substrate-binding cleft of OGA. This study provides fundamental insights into a general principle that confers the substrate binding adaptability and specificity to OGA in O-GlcNAc regulation. O-linked β-N-acetyl glucosamine (O-GlcNAc) is an important protein modification that is hydrolyzed by O-GlcNAcase (OGA). Here the authors give insights into OGA substrate recognition by presenting four human OGA structures complexed with glycopeptide substrates containing a single O-GlcNAc modification on either a serine or threonine.
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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
影响因子:
16.8
作者:
Dennis, RJ;Taylor, EJ;Davies, GJ
通讯作者:
Davies, GJ
DOI:
10.1038/nrm.2017.22
发表时间:
2017-07
期刊:
Nature reviews. Molecular cell biology
影响因子:
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作者:
Yang X;Qian K
通讯作者:
Qian K
DOI:
10.1042/bj20101338
发表时间:
2010-11-15
期刊:
The Biochemical journal
影响因子:
--
作者:
Schimpl M;Schüttelkopf AW;Borodkin VS;van Aalten DM
通讯作者:
van Aalten DM
DOI:
10.1107/s0907444902016657
发表时间:
2002-11-01
影响因子:
2.2
作者:
Adams, PD;Grosse-Kunstleve, RW;Terwilliger, TC
通讯作者:
Terwilliger, TC