在2016年,玛德琳·C·魏斯(Madeline C. Weiss)与其同事在对存在于源自己定序的、在系统发生树上分属不同位置的多种原核生物的大约六百一十万个蛋白质编码基因及286,514组蛋白质群集进行检验后,他们发现说其中有大约355组蛋白质群集很有可能存在于最后共同祖先当中,而他们的结果显示说「最后共同祖先很可能是种厌氧、行固氮作用的嗜热生物。这种生物很可能使用仰赖氢并固定二氧化碳的伍德-隆达尔代谢途径(还原性乙醯辅酶A途径);而最后共同祖先的生物化学反应中充满了硫化铁群集与自由基反应机制。」而其辅因子则「仰赖过渡金属、黄素(英语:flavins)、辅酶A、铁氧还蛋白、钼蝶呤(英语:molybdopterin)、咕啉和硒等等物质;而其遗传编码则需要核苷修饰和仰赖S-腺苷甲硫氨酸的甲基化作用等。」[15][16][17]他们的研究产生了一个相对特定的结果,那就是产甲烷的梭菌属细菌在355个检验过的生物类群中位于基群的位置;而最后共同祖先可能生活在位于地质活动区的无氧海底热泉附近,而这样的环境富含氢、二氧化碳与铁。[15]
^ 8.08.1Darwin, Charles. On the Origin of Species. London: John Murray. 1859: 484, 490.
^Oparin, Alexander I. V. Abiogenic Organic-Chemical Evolution of Carbon Compounds. The Origin of Life on the Earth 3rd. New York: Academic Press. 1957: 153–228, and whole book [1924] [2022-08-01]. (原始内容存档于2022-05-18).
^ 11.011.111.211.3Wächtershäuser, Günter. Towards a Reconstruction of Ancestral Genomes by Gene Cluster Alignment. Systematic and Applied Microbiology. 1998, 21 (4): 473–474, IN1, 475–477. doi:10.1016/S0723-2020(98)80058-1.
^Camprubí, E.; de Leeuw, J. W.; House, C. H.; Raulin, F.; Russell, M. J.; Spang, A.; Tirumalai, M. R.; Westall, F. Emergence of Life. Space Science Reviews. 2019-12-12, 215 (56): 56. Bibcode:2019SSRv..215...56C. doi:10.1007/s11214-019-0624-8.
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This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: List of diplomatic missions in Afghanistan – news · newspapers · books · scholar · JSTOR (April 2022) (Learn how and when to remove this message) Diplomatic missions in Kabul Politics of Afghanistan Constitution Taliban Islamic Movement Loya jirga (Grand assembly)…
Association football championship match between Manchester United and Liverpool, held in 1996 This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: 1996 FA Cup final – news · newspapers · books · scholar · JSTOR (January 2007) (Learn how and when to remove this message) For the women's event, see 1996 FA Women's Cup …
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