产甲烷古菌中 Na(+)和 H(+)生物能量学的演变。
Evolution of Na(+) and H(+) bioenergetics in methanogenic archaea.
机构信息
Department of Molecular Microbiology and Bioenergetics, Institute of Molecular Biosciences, Johann Wolfgang Goethe University Frankfurt am Main, Max-von-Laue-Strasse 9, 60438 Frankfurt, Germany.
出版信息
Biochem Soc Trans. 2013 Feb 1;41(1):421-6. doi: 10.1042/BST20120294.
Methanogenic archaea live at the thermodynamic limit of life and use sophisticated mechanisms for ATP synthesis and energy coupling. The group of methanogens without cytochromes use an Na(+) current across the membrane for ATP synthesis, whereas the cytochrome-containing methanogens have additional coupling sites that also translocate protons. The ATP synthase in this group is promiscuous and uses Na(+) and H(+) simultaneously.
产甲烷古菌生活在生命的热力学极限下，它们使用复杂的机制来进行 ATP 合成和能量偶联。不含有细胞色素的产甲烷菌群利用跨膜的钠离子电流来进行 ATP 合成，而含有细胞色素的产甲烷菌群则具有额外的偶联位点，也可以转运质子。这个菌群中的 ATP 合酶是混杂的，同时使用钠离子和氢离子。
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