This entry includes BcsB from bacteria which is involved in cellulose synthesis. Cellulose synthesis has been identified in several bacteria. In Agrobacterium tumefaciens, for instance, cellulose has a pathogenic role: it allows the bacteria to bind ...
This entry includes BcsB from bacteria which is involved in cellulose synthesis. Cellulose synthesis has been identified in several bacteria. In Agrobacterium tumefaciens, for instance, cellulose has a pathogenic role: it allows the bacteria to bind tightly to their host plant cells. While several enzymatic steps are involved in cellulose synthesis, potentially the only step unique to this pathway is that catalysed by cellulose synthase. This enzyme is a multi subunit complex. BcsB binds the positive effector cyclic di-GMP. This subunit is found in several different bacterial cellulose synthase enzymes. The first recognised sequence for this subunit is BcsB. In the AcsII cellulose synthase, this subunit and the subunit corresponding to BcsA are found in the same protein [1-5]. This entry represents the first CBM domain, found at the N-terminal of BcsB [4,5]. It consists of four domains arranged in a triangular shape; there is a structural repeat unit formed by a CBM domain connected to a alpha/beta domain referred to as flavodoxin-like domain (FD) and forms two pairs [4,5].
This domain is found in Cellulose Synthase Subunit B (BscB) from Cereibacter sphaeroides and similar sequences predominantly found in bacteria. BscB, involved in bacterial cellulose biosynthesis, is organized into two periplasmic carbohydrate binding ...
This domain is found in Cellulose Synthase Subunit B (BscB) from Cereibacter sphaeroides and similar sequences predominantly found in bacteria. BscB, involved in bacterial cellulose biosynthesis, is organized into two periplasmic carbohydrate binding domains (CBD-1/2, Pfam:PF03170) and two alpha/beta-domains with similarity with a flavodoxin-fold (FD1 and FD2) [1]. This entry represents FD2.
PilZ is a c-di-GMP binding domain [3] found in widespread cytoplasmic receptors, which is involved in regulation of motility, biofilm formation and virulence of many bacterial pathogens. This domain binds c-di-GMP through RXXXR and [D/N]hSXXG motifs, ...
PilZ is a c-di-GMP binding domain [3] found in widespread cytoplasmic receptors, which is involved in regulation of motility, biofilm formation and virulence of many bacterial pathogens. This domain binds c-di-GMP through RXXXR and [D/N]hSXXG motifs, however, some PilZ domains lack these motifs and do not bind c-di-GMP [6]. Proteins which contain PilZ are known to interact with the flagellar switch-complex proteins FliG and FliM. This interaction results in a reduction of torque generation and induces CCW motor bias [5]. This is the canonical PilZ domain whose structure consists of six beta-strands that form a beta barrel, followed by a long C-terminal alpha-helix [6].
