Pre_GI: SWBIT SVG BLASTP

Query: NC_017513:997716 Neisseria meningitidis G2136 chromosome, complete genome

Lineage: Neisseria meningitidis; Neisseria; Neisseriaceae; Neisseriales; Proteobacteria; Bacteria

General Information: The second of two pathogenic Neisseria, this organism causes septicemia and is the leading cause of life-threatening meningitis (inflammation of the meninges, the membrane surrounding the brain and spinal cord) in children. This organism typically residies in the nasopharynx cavity but can invade the respiratory epthelial barrier, cross into the bloodstream and the blood brain barrier, and cause inflammation of the meninges. Pathogenicity factors include the surface proteins (porins and opacity proteins), and the type IV pilus (which is also found in Neisseria gonorrhoeae). This organism, like Neisseria gonorrhoeae, is naturally competent, and protein complexes at the cell surface recognize the uptake signal sequence in extracellular DNA, an 8mer that is found at high frequency in Neisseria chromosomal DNA.

Subject: NC_012779:2586175 Edwardsiella ictaluri 93-146, complete genome

Lineage: Edwardsiella ictaluri; Edwardsiella; Enterobacteriaceae; Enterobacteriales; Proteobacteria; Bacteria

General Information: Edwardsiella ictaluri is the causative agent of enteric septicemia in catfish (ESC), an economically significant disease of farm-raised catfish. The acute form of ESC causes bacterial septicemia (proliferation of bacteria in the blood) which rapidly leads to death. The chronic form of this disease causes a characteristic head lesion, and may also proceed to septicemia and death. Two plasmids, which are consistently present in Edwardsiella ictaluri isolates, have been sequenced. Both plasmids contain genes for the type III secretory system, which is involved in translocating pathogenicity proteins into the eukaryotic cell.