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Methane metabolism - Haloterrigena turkmenica (strain ATCC 51198 / DSM 5511 / NCIMB 13204 / VKM B-1734)

 

Model information
Identifier: BMID000000108720
Format: SBML L3 V1 (Layout)
Project: path2models
Categories: metabolic
Submission: 18 May 2012 17:47:20 UTC
Last modified: 10 Dec 2012 01:02:04 UTC
Published: 20 May 2012 00:49:21 UTC
Annotations
isDescribedBy methane metabolic process Gene Ontology
occursIn Haloterrigena turkmenica (strain ATCC 51198 / DSM 5511 / NCIMB 13204 / VKM B-1734) Taxonomy
isDerivedFrom Methane metabolism KEGG Pathway
Notes
Model of “Methane metabolism” in “Haloterrigena turkmenica DSM 5511”
Methane is metabolized principally by methanotrophs and the methanogens in the global carbon cycle. Methanotrophs consume methane as the only source of carbon, while methanogens produce methane as a metabolic byproduct. Methylotrophs, which are microorganisms that can obtain energy for growth by oxidizing one-carbon compounds, such as methanol and methane, are situated between methanotrophs and methanogens. In this map, formaldehyde is placed at the diverging point for further oxidation to CO2 for energy source and assimilation for biosynthesis in methanotrophs and methyltrophs. There are three pathways that convert formaldehyde to C2 or C3 compounds: serine pathway [MD:M00346], ribulose monophosphate pathway [MD:M00345], and xylulose monophosphate pathway [MD:M00344]. The first two pathways are found in prokaryotes and the third is found in yeast. As a special case of methylotrophs, various amines can be used as carbon sources in trimethylamine metabolism. In contrast, methanogens can obtain energy for growth by converting a limited number of substrates to methane under anaerobic conditions. Only three types of methanogenic pathways are known: methanogenesis from H2/CO2 or formate [MD:M00347], methanol to methane [MD:M00356], and acetate to methane [MD:M00357]. Methanogens use 2-mercaptoethanesulfonate (CoM; coenzyme M) as the terminal methyl carrier in methanogenesis and have four enzymes for CoM biosynthesis [MD:M00358]. Coenzyme B-Coenzyme M heterodisulfide reductase (Hdr), requiring for the final reaction steps of methanogenic pathway, is divided into two types: cytoplasmic HdrABC in most methanogens and membrane-bound HdrED in Methanosarcina species.

Graphical representation of 'Methane metabolism (Haloterrigena turkmenica DSM 5511)'
(PNG image hosted by the Kyoto Encyclopedia of Genes and Genomes, KEGG).
This model has been automatically generated by KEGGtranslator V2.2.0 (KEGGtranslator: visualizing and converting the KEGG PATHWAY database to various formats. Wrzodek C, Dräger A, Zell A. Bioinformatics . 2011, 27 :2314-2315) using information coming from the KEGG PATHWAY Database ( original pathway ).
The missing kinetic equations were added by SBMLsqueezer .
This model has been produced by the path2models project, it is currently hosted on BioModels Database and identified by: BMID000000108720 .
To the extent possible under law, all copyright and related or neighbouring rights to this encoded model have been dedicated to the public domain worldwide. Please refer to CC0 Public Domain Dedication for more information.
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