Bacteroides thetaiotaomicron

Species of bacterium

Bacteroides thetaiotaomicron is a gram-negative, non-motile, rod shaped obligate anaerobic bacterium that is a prominent member of the normal gut microbiome in the distal intestines. Its proteome, consisting of 4,779 members, includes a system for obtaining and breaking down dietary polysaccharides that would otherwise be difficult to digest. B. thetaiotaomicron is also an opportunistic pathogen, meaning it may become virulent in immunocompromised individuals. It is often used in research as a model organism for functional studies of the human microbiota in the gut.

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