Species code:	METM6
Taxonomy:	Archaea; Euryarchaeota; Methanococci; Methanococcales; Methanococcaceae; Methanococcus (TaxID: 444158) [NEWT/ NCBI]
Description:	Methanococcus maripaludis (strain C6 / ATCC BAA-1332) is a rapid growing hydrogenotrophic, obligately anaerobic and methanogenic methanoarchaeon common in salt marshes, marine and estuarine environments in the Southeastern U.S.A. and probably elsewhere. It uses hydrogen gas and formate as electron donors. Acetate, alcohols (including isopropanol) and methylamines are not substrates for methanogenesis. All strains grow autotrophically in mineral medium. Amino acids and acetate are frequently stimulatory for growth. Nitrogen sources include ammonium, nitrogen gas and alanine. The ability to use alanine is distinctive for members of this species. Sulfur sources include sulfide and elemental sulfur. Storage materials include glycogen. It is an irregular coccus. Cells from older cultures or colonies are extremely irregular. It is motile, by means of polar tufts of flagella and obligately anaerobic. It is a mesophile, with a temperature optima of about 35-40 degrees Celsius. The pH optimum for growth is between 6 and 8. NaCl is required for growth, with optimal concentrations of 0.5-4% (w/v).
Properties:	Presence of flagella: Yes Interaction: No Number of membranes: 1 Number of inteins:0
Statistics:	Number of METM6 entries in the UniProt Knowledgebase: 1825 (7 in UniProtKB/Swiss-Prot + 1818 in UniProtKB/TrEMBL)

Genome structure:	Chromosome EMBL accession number CP000867 (circular; 1,744,193 bp) (download entry) (download Genome Reviews).
Reference(s):	[1] Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E., Tice H., Pitluck S., Clum A., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Sieprawska-Lupa M., Whitman W.B., Richardson P. ; "Complete sequence of Methanococcus maripaludis C6."; Submitted (OCT-2007) to the EMBL/GenBank/DDBJ databases.
Web links:	Official genome site(s): http://genome.jgi-psf.org/finished_microbes/metm6/metm6.home.html Other web sites: GIB (DDBJ): http://gib.genes.nig.ac.jp/single/index.php?spid=Mmar_C6  EBI Proteome Analysis page

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