title: Cutting-hedge research into bacterial invasion.
abstract: Glycoside hydrolases are the tools that pathogenic bacteria use to cut through the defensive glycan structure on host cell surfaces. In this issue of Structure, Pluvinage et al. (2011) report how a bacterial polypeptide with more than one hydrolase module broadens the effective substrate specificity.
authors.affiliation: Ontario Cancer Institute, University Health Network, 101 College Street, Toronto, Ontario M5G 1L7, Canada.
authors.forename: Douglas A
authors.initials: DA
authors.lastname: Kuntz
authors.forename: David R
authors.initials: DR
authors.lastname: Rose