| Literature DB >> 8892852 |
D Allaway1, B Jeyaretnam, R W Carlson, P S Poole.
Abstract
A 2-kb region that complements the Tn5-derived lipopolysaccharide (LPS) rough mutant Rhizobium leguminosarum RU301 was sequenced. Two open reading frames (ORFs) were identified. The first ORF (lpcA) is homologous to a family of bacterial sugar transferases involved in LPS core tetrasaccharide biosynthesis. ORF2 (lpcB), in which Tn5 transposed, has no significant homology to any DNA in the GenBank-EMBL databases. Chemical characterization of LPS produced by strain RU301 demonstrated that the 3-deoxy-D-manno-2-octulosonic acid (Kdo) residue which normally attaches the core tetrasaccharide to the O chain was missing, suggesting that IpcB may encode a CMP-Kdo:LPS Kdo transferase.Entities:
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Year: 1996 PMID: 8892852 PMCID: PMC178523 DOI: 10.1128/jb.178.21.6403-6406.1996
Source DB: PubMed Journal: J Bacteriol ISSN: 0021-9193 Impact factor: 3.490