Access channel residues Ser315 and Asp137 in Mycobacterium tuberculosis catalase-peroxidase (KatG) control peroxidatic activation of the pro-drug isoniazid.
Access channel residues Ser315 and Asp137 in Mycobacterium tuberculosis catalase-peroxidase (KatG) control peroxidatic activation of the pro-drug isoniazid.
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DOI:
10.1039/c3cc47022a
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发表时间:
2013-12-25
期刊:
影响因子:
--
通讯作者:
Magliozzo RS
中科院分区:
文献类型:
--
作者:
Zhao X;Hersleth HP;Zhu J;Andersson KK;Magliozzo RS
Peroxidatic activation of the anti-tuberculosis pro-drug isoniazid by Mycobacterium tuberculosis catalase-peroxidase (KatG) is regulated by gating residues of a heme access channel. The steric restriction at the bottleneck of this channel is alleviated by replacement of residue Asp137 with Ser, according to crystallographic and kinetic studies.
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