Species code:	METM7
Taxonomy:	Archaea; Euryarchaeota; Methanococci; Methanococcales; Methanococcaceae; Methanococcus (TaxID: 426368) [NEWT/ NCBI]
Description:	Methanococcus maripaludis (strain C7 / ATCC BAA-1331) is a motile, mesophilic (temperature optima of about 35-40 degrees Celsius and pH optimum for growth is between 6 and 8), obligately anaerobic archaeon of the phylum Euryarchaeota. It is a rapidly growing hydrogenotrophic methanoarchaeon common in salt marshes, marine and estuarine environments in the southeastern U.S.A. and probably elsewhere. It is obligately methanogenic; hydrogen and formate serve as electron donors, but 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, N2 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. M. maripaludis stands out among methanogenic archaea as an ideal model species because of fast reproducible growth and effective genetic tools.
Properties:	Presence of flagella: Yes Interaction: No Number of membranes: 1 Number of inteins:0
Statistics:	Number of METM7 entries in the UniProt Knowledgebase: 1786 (236 in UniProtKB/Swiss-Prot + 1550 in UniProtKB/TrEMBL)

Genome structure:	Chromosome EMBL accession number CP000745 (circular; 1,772,694 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., Anderson I., Sieprawska-Lupa M., Whitman W.B., Richardson P. ; "Complete sequence of Methanococcus maripaludis C7."; Submitted (JUN-2007) to the EMBL/GenBank/DDBJ databases.
Web links:	Entrez Genome Project: http://www.ncbi.nlm.nih.gov/sites/entrez?Db=genomeprj&cmd=ShowDetailView&TermToSearch=18819 GIB (DDBJ): http://gib.genes.nig.ac.jp/single/index.php?spid=Mmar_C7  EBI Proteome Analysis page

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