Molecular mechanism for eliminylation, a newly discovered post-translational modification.
Molecular mechanism for eliminylation, a newly discovered post-translational modification.
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DOI:
10.1021/ja204378q
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发表时间:
2011-07-27
影响因子:
15
通讯作者:
Guo, Hua
中科院分区:
文献类型:
--
作者:
Ke, Zhihong;Smith, Gregory K.;Zhang, Yingkai;Guo, Hua
The newly discovered bacterial phosphothreonine lyases perform a post-translational modification of host cell signaling proteins employing a novel catalytic mechanism that irreversibly removes the phosphate group from a phosphorylated threonine via β-elimination. This “eliminylation” reaction is shown by ab initio QM/MM studies to proceed via the E1cB-like pathway, in which the carbanion intermediate is stabilized by an enzyme oxyanion hole provided by Lys104 and Tyr158 of SpvC.
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