Introduction of Cysteine Dioxygenase: Structural Biology, Proposed Reaction Mechanisms and Biomimetic Model Complexes

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题名:	Introduction of Cysteine Dioxygenase: Structural Biology, Proposed Reaction Mechanisms and Biomimetic Model Complexes
其它题名:	半胱胺酸雙加氧酶 (Cysteine Dioxygenase)之功能與介紹及其模型化合物的研究與發展
作者:	Sen-Jer Lee, Jing-Yi Huang, Chung-Hung Hsieh
关键词:	Cysteine Dioxygenase;CDO
日期:	2014-06-01
上传时间:	2017-11-01 02:11:42 (UTC+8)
摘要:	There is a variety of metalloenzymes in the biological system. The organisms use them to maintain their life. Herein, we introduce a special enzyme: Cysteine Dioxygenase (CDO); CDO is a non-heme iron enzyme, which can convert cysteine (Cys) into cysteine sulfinic acid (CSA). This conversion plays an important role in cysteine catabolism in mammalian tissue. Deficiency of CDO has been correlated with Alzheimer’s, Parkinson’s and other neurological disorders. Structural comparison from the typical non-hemeFe(II) dioxygenases to CDO, the coordination sphere of the Fe in CDO deviates fromthe fac-2-Histeines-1-carboxylate to a 3-Histeines facial triad. Themechanistic information of CDO, involves in O2 activation to generate Fe(III)-O2 − or further leading to the formation of Fe(IV) = O species, is still not clear. Biomimetic studies suggest the S-oxygenation mediatedby an Fe(II)-SR complex and O2 is expectable.
關聯:	72卷2期
DOI:	10.6623/chem.2014007
显示于类别:	[化學學系暨研究所] 期刊論文

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