出典:Wikipedia
出典:『Wikipedia』 (2010/05/06 11:04 UTC 版)
Dispersin B (EC 3.2.1.52) (also known as DspB or DispersinB) is a 42 kDa glycoside hydrolase enzyme produce by the periodontal pathogen Aggregatibacter actinomycetemcomitans. Dispersin B catalyzes the hydrolysis of poly-N-acetylglucosamine, a sticky extracellular polysaccharide produce by various Gram-positive bacteria including Staphylococcus aureus and Staphylococcus epidermidis, as well as many Gram-negative bacteria including Escherichia coli, Yersinia pestis and Bordetella spp. Poly-N-acetylglucosamine is sometimes called polysaccharide intercellular adhesin or PIA.