HMM Summary Page: TIGR01556

AccessionTIGR01556
Namerhamnosyltran
Functionrhamnosyltransferase
Trusted Cutoff200.55
Domain Trusted Cutoff200.55
Noise Cutoff191.50
Domain Noise Cutoff191.50
Isology Typesubfamily
EC Number2.4.1.-
HMM Length281
Mainrole CategoryCell envelope
Subrole CategoryBiosynthesis and degradation of surface polysaccharides and lipopolysaccharides
Gene Ontology TermGO:0009247: glycolipid biosynthetic process biological_process
GO:0016757: transferase activity, transferring glycosyl groups molecular_function
AuthorBrinkac L
Entry DateJun 17 2002 3:17PM
Last ModifiedFeb 14 2011 3:27PM
CommentThis HMM subfamily is comprised of gamma proteobacteria whose proteins function as L-rhamnosyltransferases in the synthesis of their respective surface polysaccharides. Rhamnolipids are glycolipids containing mono- or di- L-rhamnose molecules. Rhamnolipid synthesis occurs by sequential glycosyltransferase reactions involving two distinct rhamnosyltransferase enzymes. In P.aeruginosa, the synthesis of mono-rhamnolipids is catalyzed by rhamnosyltransferase 1, and proceeds by a glycosyltransfer reaction catalyzed by rhamnosyltransferase 2 to yield di-rhamnolipids [1].
ReferencesRN [1] RM 11359576 RT Cloning and functional characterization of the Pseudomonas aeruginosa rhlC gene that encodes rhamnosyltransferase 2, an enzyme responsible for di-rhamnolipid biosynthesis. RA Rahim R, Ochsner UA, Olvera C, Graninger M, Messner P, Lam JS, Soberon-Chavez G. RL Mol Microbiol. 2001 May;40(3):708-18. DR PFAM; PF00535; Glycosyl transferase DR EXPERIMENTAL; OMNI|NTL03PA01131; Pseudomonas aeruginosa; Cloning and functional characterization of the Pseudomonas aeruginosa rhlC gene that encodes rhamnosyltransferase 2, an enzyme responsible for di-rhamnolipid biosynthesis.
Genome PropertyGenProp1051: O10(Ec) antigen biosynthesis (HMM-CLUST)