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本文引用的文献

1
Transcriptional profiling of methyltransferase genes during growth of Methanosarcina mazei on trimethylamine.马氏甲烷八叠球菌在三甲胺上生长过程中甲基转移酶基因的转录谱分析
J Bacteriol. 2009 Aug;191(16):5108-15. doi: 10.1128/JB.00420-09. Epub 2009 Jun 12.
2
Methanogenic archaea: ecologically relevant differences in energy conservation.产甲烷古菌：能量守恒方面与生态相关的差异
Nat Rev Microbiol. 2008 Aug;6(8):579-91. doi: 10.1038/nrmicro1931. Epub 2008 Jun 30.
3
Methanogenesis in marine sediments.海洋沉积物中的甲烷生成。
Ann N Y Acad Sci. 2008 Mar;1125:147-57. doi: 10.1196/annals.1419.007.
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Life close to the thermodynamic limit: how methanogenic archaea conserve energy.接近热力学极限的生命：产甲烷古菌如何保存能量。
Results Probl Cell Differ. 2008;45:123-52. doi: 10.1007/400_2006_026.
5
The archaeon Methanosarcina acetivorans contains a protein disulfide reductase with an iron-sulfur cluster.嗜乙酰甲烷八叠球菌古菌含有一种带有铁硫簇的蛋白质二硫键还原酶。
J Bacteriol. 2007 Oct;189(20):7475-84. doi: 10.1128/JB.00891-07. Epub 2007 Aug 3.
6
Quantitative proteomic and microarray analysis of the archaeon Methanosarcina acetivorans grown with acetate versus methanol.以乙酸盐和甲醇为生长底物的嗜乙酸甲烷八叠球菌的定量蛋白质组学和微阵列分析。
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DNA microarray analysis of Methanosarcina mazei Gö1 reveals adaptation to different methanogenic substrates.马氏甲烷八叠球菌Gö1的DNA微阵列分析揭示了其对不同产甲烷底物的适应性。
Mol Genet Genomics. 2005 May;273(3):225-39. doi: 10.1007/s00438-005-1126-9. Epub 2005 Apr 7.
8
Flavin mononucleotide-binding flavoprotein family in the domain Archaea.古菌域中的黄素单核苷酸结合黄素蛋白家族。
J Bacteriol. 2004 Jan;186(1):90-7. doi: 10.1128/JB.186.1.90-97.2004.
9
FERREDOXIN REQUIREMENT FOR NITROGEN FIXATION BY EXTRACTS OF CLOSTRIDIUM PASTEURIANUM.巴氏梭菌提取物固氮对铁氧化还原蛋白的需求
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The genome of Methanosarcina mazei: evidence for lateral gene transfer between bacteria and archaea.马氏甲烷八叠球菌的基因组：细菌与古菌之间横向基因转移的证据。
J Mol Microbiol Biotechnol. 2002 Jul;4(4):453-61.

产甲烷八叠球菌中依赖于铁氧还蛋白的膜结合电子传递中 Ech 氢化酶的功能。

Function of Ech hydrogenase in ferredoxin-dependent, membrane-bound electron transport in Methanosarcina mazei.

机构信息

Institute of Microbiology and Biotechnology, University of Bonn, Meckenheimer Allee 168, 53115 Bonn, Germany.

出版信息

J Bacteriol. 2010 Feb;192(3):674-8. doi: 10.1128/JB.01307-09. Epub 2009 Nov 30.

DOI:10.1128/JB.01307-09
PMID:19948802
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2812462/
Abstract

Reduced ferredoxin is an intermediate in the methylotrophic and aceticlastic pathway of methanogenesis and donates electrons to membrane-integral proteins, which transfer electrons to the heterodisulfide reductase. A ferredoxin interaction has been observed previously for the Ech hydrogenase. Here we present a detailed analysis of a Methanosarcina mazei Delta ech mutant which shows decreased ferredoxin-dependent membrane-bound electron transport activity, a lower growth rate, and faster substrate consumption. Evidence is presented that a second protein whose identity is unknown oxidizes reduced ferredoxin, indicating an involvement in methanogenesis from methylated C(1) compounds.

摘要

还原型铁氧还蛋白是甲基营养型和乙酸营养型产甲烷途径中的一种中间产物，它将电子捐赠给膜整合蛋白，这些蛋白再将电子传递给异二硫键还原酶。先前已经观察到 Ech 氢化酶与铁氧还蛋白相互作用。在这里，我们对 Methanosarcina mazei Delta ech 突变体进行了详细分析，结果表明该突变体的还原型铁氧还蛋白依赖性膜结合电子传递活性降低，生长速度较慢，底物消耗速度较快。有证据表明，一种身份不明的第二种蛋白质氧化还原型铁氧还蛋白，表明其参与了甲基化 C(1)化合物的甲烷生成。