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Query: NC_017379:996500:1013405 Helicobacter pylori Puno135 chromosome, complete genome

Start: 1013405, End: 1013740, Length: 336

Host Lineage: Helicobacter pylori; Helicobacter; Helicobacteraceae; Campylobacterales; Proteobacteria; Bacteria

General Information: 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.

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SubjectStartEndLengthSubject Host DescriptionCDS descriptionE-valueBit score
NC_017378:986611:100350310035031003826324Helicobacter pylori Puno120 chromosome, complete genomehypothetical protein2e-52204
NC_017355:997089:101505210150521015387336Helicobacter pylori v225d chromosome, complete genomehypothetical protein3e-49193
NC_017362:992293:100509210050921005424333Helicobacter pylori Lithuania75 chromosome, complete genomehypothetical protein2e-47187
NC_012973:967380:982809982809983111303Helicobacter pylori B38 chromosome, complete genomehypothetical protein5e-40162