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Methylococcus capsulatus

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Title: Methylococcus capsulatus  
Author: World Heritage Encyclopedia
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Subject: Methane monooxygenase, Proteobacteria, List of MeSH codes (B03)
Publisher: World Heritage Encyclopedia

Methylococcus capsulatus

Methylococcus capsulatus
Scientific classification
Kingdom: Bacteria
Phylum: Proteobacteria
Class: Gammaproteobacteria
Order: Methylococcales
Family: Methylococcaceae
Genus: Methylococcus
Species: M. capsulatus
Binomial name
Methylococcus capsulatus
Foster and Davis 1966 (Approved Lists 1980)

Methylococcus capsulatus is an obligately hydrogen containing compounds such as methanol. M. capsulatus has also been demonstrated to be thermotolerant- that is, it can grow well up to 50°C, though its optimum growth temperature is 37°C. In addition, M. capsulatus can live in conditions in which there is little molecular oxygen available.

Methylococcus capsulatus is a Type I methanotroph, meaning that it is a member of the Gammaproteobacteria and that it utilizes the ribulose monophosphate pathway (RuMP) for formaldehyde assimilation. Methane is first oxidized to methanol, which then gets converted into formaldehyde. Formaldehyde can then be 1) further oxidized to formate and carbon dioxide for energy production or 2) assimilated into biomass.

The genome sequence of M. capsulatus (Bath) is available.[1]

Various strains of M. capsulatus have been isolated and studied, particularly M. capsulatus (Bath), M. capsulatus (Texas) and M. capsulatus (Aberdeen).


  1. ^ Ward, Naomi; Larsen, ØIvind; Sakwa, James; Bruseth, Live; Khouri, Hoda; Durkin, A. Scott; Dimitrov, George; Jiang, Lingxia; et al. (2004). "Genomic Insights into Methanotrophy: the Complete Genome Sequence of Methylococcus capsulatus (Bath)". PLoS Biology 2 (10): e303.  
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