We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleHidden alternative structures of proline isomerase essential for catalysis.AuthorsFraser JS; Clarkson MW; Degnan SC; Erion R; Kern D; Alber TPublicationNature, 2009, Vol 462, Issue 7273, p669ISSN1476-4687Publication typearticleDOI10.1038/nature08615