Vibrio cholerae hemagglutinin/lectin/protease hydrolyzes fibronectin and ovomucin: F. M. Burnet revisited

Abstract
Cholera vibrios produce a single polymeric protein that ( i ) causes hemagglutination; ( ii ) appears to participate in their attachment to gut epithelium; ( iii ) may mediate their detachment from gut epithelium; and ( iv ) is a protease that hydrolyzes fibronectin and mucin, cleaves lactoferrin, and nicks the A subunit of the choleragen-related heat-labile enterotoxin of Escherichia coli .