Protein Domain : Cellulose synthase operon protein D, bacterial IPR022798

Type	Family
Description	Cellulose, an aggregate of unbranched polymers of beta-1,4-linked glucose residues, is the major component of wood and thus paper, and is synthesized by plants, most algae, some bacteria and fungi, and even some animals. The genes that synthesize cellulose in higher plants differ greatly from the well-characterised genes found in Acetobacter and Agrobacterium spp. More correctly designated as "cellulose synthase catalytic subunits", plant cellulose synthase (CesA) proteins are integral membrane proteins, approximately 1,000 amino acids in length. There are a number of highly conserved residues, including several motifs shown to be necessary for processive glycosyltransferase activity [ ].An operon encoding 4 proteins required for bacterial cellulose biosynthesis (bcs) in Acetobacter xylinus (Gluconacetobacter xylinus) has been isolated via genetic complementationwith strains lacking cellulose synthase activity [ ]. Nucleotide sequence analysis showed the cellulose synthase operon to consist of 4 genes, designated bcsA, bcsB, bcsC and bcsD, all of which are required for maximal bacterial cellulose synthesis in A. xylinum. The calculated molecular mass of the protein encoded by bcsD is 17.3kDa [ ]. The function of BcsD is unknown.This entry represents Cellulose synthase operon protein D from Komagataeibacter xylinus and similar proteins from Proteobacteria. BcsD has been related with the level of crystalline structure of cellulose [ ]. The protein have a octamer pore-like structure with four inner passageways [].
Short Name	BcsD_bac