Semiquinone radicals of methylamine dehydrogenase, methoxatin, and related o-quinones: a pulse radiolysis study.
作者信息
McWhirter R B, Klapper M H
机构信息
Department of Chemistry, Ohio State University, Columbus 43210.
出版信息
Biochemistry. 1990 Jul 24;29(29):6919-26. doi: 10.1021/bi00481a023.
PMID:2168747
Abstract
Methoxatin is a novel o-quinone coenzyme found in a variety of dehydrogenases and oxidases. In this paper we present the visible absorption spectra, apparent pKa, and midpoint potentials of the methoxatin and two analogous phenanthrolinedione semiquinones. We have also obtained absorption spectra for the semiquinone forms of the methoxatin-containing holoenzyme methylamine dehydrogenase and of its resolved methoxatin-containing subunit. The two protein and the methoxatin semiquinone spectra all differ from one another.
摘要
相似文献
1
Semiquinone radicals of methylamine dehydrogenase, methoxatin, and related o-quinones: a pulse radiolysis study.
Biochemistry. 1990 Jul 24;29(29):6919-26. doi: 10.1021/bi00481a023.
2
The methoxatin semiquinone: a pulse radiolysis study.
Biochem Biophys Res Commun. 1986 Sep 30;139(3):955-60. doi: 10.1016/s0006-291x(86)80270-4.
3
Replacement of methoxatin by 4,7-phenanthroline-5,6-dione and the inability of other phenanthroline quinones, as well as 7,9-di-decarboxy methoxatin, to serve as cofactors for the methoxatin-requiring glucose dehydrogenase of Acinetobacter calcoaceticus.用4,7-菲咯啉-5,6-二酮替代甲氧喋呤，以及其他菲咯啉醌类化合物和7,9-二脱羧甲氧喋呤不能作为醋酸钙不动杆菌中需要甲氧喋呤的葡萄糖脱氢酶的辅因子。
Biochem Biophys Res Commun. 1985 Sep 16;131(2):564-6. doi: 10.1016/0006-291x(85)91273-2.
4
Some electrochemical and chemical properties of methoxatin and analogous quinoquinones.甲氧蝶呤及类似醌喹啉的一些电化学和化学性质。
Proc Natl Acad Sci U S A. 1982 Apr;79(8):2533-6. doi: 10.1073/pnas.79.8.2533.
5
pH-dependent semiquinone formation by methylamine dehydrogenase from Paracoccus denitrificans. Evidence for intermolecular electron transfer between quinone cofactors.反硝化副球菌甲基胺脱氢酶的pH依赖性半醌形成。醌辅因子间分子间电子转移的证据。
Biochemistry. 1990 Dec 4;29(48):10786-91. doi: 10.1021/bi00500a010.
6
Amino acid residues interacting with both the bound quinone and coenzyme, pyrroloquinoline quinone, in Escherichia coli membrane-bound glucose dehydrogenase.在大肠杆菌膜结合葡萄糖脱氢酶中，与结合的醌和辅酶吡咯喹啉醌相互作用的氨基酸残基。
J Biol Chem. 2008 Aug 8;283(32):22215-21. doi: 10.1074/jbc.M800911200. Epub 2008 Jun 12.
7
Pyrroloquinoline quinone (PQQ) from methanol dehydrogenase and tryptophan tryptophylquinone (TTQ) from methylamine dehydrogenase.来自甲醇脱氢酶的吡咯喹啉醌（PQQ）和来自甲胺脱氢酶的色氨酸-色氨酰醌（TTQ）。
Adv Protein Chem. 2001;58:95-140. doi: 10.1016/s0065-3233(01)58003-1.
8
Crystallization of a derivative of a new coenzyme, methoxatin.
Biochim Biophys Acta. 1981 Aug 17;676(2):226-9. doi: 10.1016/0304-4165(81)90191-4.
9
Evidence for a tryptophan tryptophylquinone aminosemiquinone intermediate in the physiologic reaction between methylamine dehydrogenase and amicyanin.关于甲胺脱氢酶与氨蓝蛋白生理反应中色氨酸 - 色氨酰醌半醌中间体的证据。
Biochemistry. 1996 Jul 9;35(27):8948-54. doi: 10.1021/bi960404x.
10
One-electron reduction of 17-(dimethylaminoethylamino)-17-demethoxygeldanamycin: a pulse radiolysis study.一电子还原 17-(二甲氨基乙基氨基)-17-去甲氧基格尔德霉素：脉冲辐解研究。
J Phys Chem A. 2011 Aug 18;115(32):8928-32. doi: 10.1021/jp205161v. Epub 2011 Jul 22.
Zotero 插件