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Immunocytochemical localization of methyl-coenzyme M reductase in Methanobacterium thermoautotrophicum

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Abstract

Cells of Methanobacterium thermoautotrophicum were fixed with glutaraldehyde, sectioned and labeled with antibodies against the β subunit of component C (=methyl-CoM reductase) of methyl-CoM reductase system and with colloidal gold-labeled protein A. It was found that the gold particles were located predominantly in the vicinity of the cytoplasmic membrane, when the cells were grown under conditions where methyl-CoM reductase was not overproduced. This finding confirms the recent data obtained with Methanococcus voltae showing via the same immunocytochemical localization technique that in this organism methyl-CoM reductase is membrane associated.

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Aldrich, H.C., Beimborn, D.B., Bokranz, M. et al. Immunocytochemical localization of methyl-coenzyme M reductase in Methanobacterium thermoautotrophicum . Arch. Microbiol. 147, 190–194 (1987). https://doi.org/10.1007/BF00415283

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  • DOI: https://doi.org/10.1007/BF00415283

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