Query: NC_011837:1 Clostridium kluyveri NBRC 12016, complete genome Lineage: Clostridium kluyveri; Clostridium; Clostridiaceae; Clostridiales; Firmicutes; Bacteria General Information: Involved in production of caproic acid in co-culture with a methanogen. Clostridium kluyveri was enriched from mud in a co-culture with Methanobacterium omelianskii. When grown on ethanol C. kluyveri produce caproic acid in addition to acetic acid. This organism is able to grow anaerobically on ethanol and acetate as sole energy sources.
- Sequence; - BLASTN hit (Low score = Light, High score = Dark) - hypothetical protein; - cds: hover for description
General Information: This strain was isolated in 1994 in the USA from a patient with duodenal ulcer. This genus consists of organisms that colonize the mucosal layer of the gastrointestinal tract or are found enterohepatically (in the liver). It was only recently discovered (1983) by two Australians (Warren and Marshall) that this organism was associated with peptic ulcers. It is one of the most common chronic infectious organisms, and is found in half the world's population. This organism attacks the gastric epithilial surface, resulting in chronic gastritis, and can cause more severe diseases including those that lead to gastric carcinomas and lymphomas, peptic ulcers, and severe diarrhea. It is an extracellular pathogen that persists in the gastric environment, which has a very low pH, by production of the urease enzyme, which converts urea to ammonia and carbon dioxide, a process which can counteract the acidic environment by production of a base. The toxins include cytolethal distending toxin, vacuolating cytotoxin (VacA) that induces host epithelial cell apopoptosis (cell death), and the cytotoxin associated antigen (CagA) which results in alteration to the host cell signalling pathways. The CagA protein is translocated into host cells by a type IV secretion system encoded by the cag pathogenicity island.