methanosarcinales การใช้

• With the exception of two halophilic archaea the DUF1608 domain is exclusive to the methanogenic Archaea of the order Methanosarcinales.
• The anaerobic methanotrophs are not related to the known aerobic methanotrophs; the closest cultured relative to the anaerobic methanotrophs are the methanogens in the order Methanosarcinales.
• The presence of an S-layer in a member of the Methanosarcinales was determined in the 1980s by electron microscope ( EM ) studies examining the cell morphology of " Methanosarcina mazei ".
• A variety of microorganisms live in, on, and around the vents . " Methanosarcinales "-like archaea form thick biofilms inside the vents where they subsist on hydrogen and methane; bacteria related to the Firmicutes also live inside the vents.
• The structure of the C-terminal DUF1608 domain of the Methanosarcinales S-layer Tile Protein MA0829 . A, the C-terminal DUF1608 domain of MA0829 with domain I colored red, domain II in blue, and the connector subdomain in yellow.
• This, and other EM studies, confirmed that the cell envelope structure of the Methanosarcinales is composed of a cytoplasmic membrane ( CM ) with an additional barrier ( the S-layer ) external to the CM . Under conditions of low osmolarity the S-layer is extensively decorated with a polysaccharide, termed methanochondroitin, and the cells tend to grow in multicellular aggregates.