Structural basis for synthase activation and cellulose modification in the
E. coli Type II Bcs secretion system
Petya KRASTEVA,
Itxaso Anso,
Thibault Sana
et al.
Abstract:Bacterial cellulosic polymers constitute a prevalent class of biofilm matrix exopolysaccharides that rely on conserved cyclic diguanylate (c-di-GMP)-dependent cellulose synthases. Polymer structure and modifications, however, depend on the ensemble of synthase modules and accessory subunits, thus defining several types of bacterial cellulose secretion (Bcs) systems. In E. coli, a BcsRQABEFG macrocomplex, encompassing the inner membrane and cytosolic subunits, and an outer membrane porin, BcsC, secure the bioge… Show more
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