Biochemistry of aerobic biological methane oxidation.
Biochemistry of aerobic biological methane oxidation.
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DOI:
10.1039/d0cs01291b
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发表时间:
2021-03-07
影响因子:
46.2
通讯作者:
Rosenzweig AC
中科院分区:
文献类型:
--
作者:
Koo CW ;Rosenzweig AC
Methanotrophic bacteria represent a potential route to methane utilization and mitigation of methane emissions. In the first step of their metabolic pathway, aerobic methanotrophs use methane monooxygenases (MMOs) to activate methane, oxidizing it to methanol. There are two types of MMOs: a particulate, membrane-bound enzyme (pMMO) and a soluble, cytoplasmic enzyme (sMMO). The two MMOs are completely unrelated, with different architectures, metal cofactors, and mechanisms. The more prevalent of the two, pMMO, is copper-dependent, but the identity of its copper active site remains unclear. By contrast, sMMO uses a diiron active site, the catalytic cycle of which is well understood. Here we review the current state of knowledge for both MMOs, with an emphasis on recent developments and emerging hypotheses. In addition, we discuss obstacles to developing expression systems, which are needed to address outstanding questions and to facilitate future protein engineering efforts. Methane monooxygenase enzymes use metal cofactors to activate methane under ambient, aerobic conditions. This review highlights recent progress in understanding the structure and activity of the copper-containing, membrane-bound and iron-containing, soluble methane monooxygenases.
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影响因子:
15
作者:
Castillo RG;Banerjee R;Allpress CJ;Rohde GT;Bill E;Que L Jr;Lipscomb JD;DeBeer S
通讯作者:
DeBeer S
影响因子:
64.8
作者:
通讯作者:
--
影响因子:
64.8
作者:
Banerjee, Rahul;Proshlyakov, Yegor;Lipscomb, John D.;Proshlyakov, Denis A.
通讯作者:
Proshlyakov, Denis A.
DOI:
10.1002/anie.201708977
发表时间:
2018-01-02
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
Cao L;Caldararu O;Rosenzweig AC;Ryde U
通讯作者:
Ryde U
影响因子:
2.9
作者:
Brazeau, BJ;Lipscomb, JD
通讯作者:
Lipscomb, JD