title: Protein folding in bacterial adhesion: secretion and folding of classical monomeric autotransporters.
abstract: Bacterial adhesins mediate the attachment of bacteria to their niches, such as the tissue of an infected host. Adhesins have to be transported across the cell envelope to become active and during this secretion process they fold into their final conformation. This chapter focuses on the biogenesis of the classical monomeric autotransporter proteins, which are the most ubiquitous class of secreted proteins in Gram-negative bacteria. They may function as adhesins, but other functions are also known. Autotransporter proteins have a modular structure and consist of an N-terminal signal peptide and a C-terminal translocator domain with in between the secreted passenger domain that harbours the functions. The signal peptide directs the transport across the inner membrane to the periplasm via the Sec machinery. The translocator domain inserts into the outer membrane and facilitates the transport of the passenger to the cell surface. In this chapter, I will review our current knowledge of the secretion of classical monomeric autotransporters and the methods that have been used to assess their folding during the translocation, both in vitro and in vivo.
authors.affiliation: Section Molecular Microbiology, Department of Molecular Cell Biology, VU University Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands. peter.van.ulsen@falw.vu.nl
authors.forename: Peter
authors.initials: P
authors.lastname: van Ulsen
mesh_terms: D018829:Adhesins, Bacterial / Q000737:chemistry* / Q000502:physiology*; D001422:Bacterial Adhesion / Q000502:physiology*; D001425:Bacterial Outer Membrane Proteins / Q000737:chemistry / Q000502:physiology; D006090:Gram-Negative Bacteria / Q000502:physiology; D006801:Humans; D008958:Models, Molecular; D017510:Protein Folding; D011499:Protein Processing, Post-Translational; D021382:Protein Sorting Signals; D017434:Protein Structure, Tertiary; D012697:Serine Endopeptidases / Q000737:chemistry / Q000502:physiology
chemical_list: D018829:Adhesins, Bacterial; D001425:Bacterial Outer Membrane Proteins; D021382:Protein Sorting Signals; C464643:AspA protein, Neisseria meningitidis; D012697:Serine Endopeptidases