Eric Klein

Abstract Lipopolysaccharide (LPS) is essential in most Gram-negative bacteria, but mutants of several species have been isolated that can survive in its absence. Caulobacter crescentus viability in the absence of LPS is partially dependent on the anionic sphingolipid ceramide diphosphoglycerate (CPG2). Genetic analyses showed that ccna_01210, which encodes a nucleotidyltransferase, is required for CPG2 production.

Abstract Sphingolipids are produced by nearly all eukaryotes where they play significant roles in cellular processes such as cell growth, division, programmed cell death, angiogenesis, and inflammation. While it was previously believed that sphingolipids were quite rare among bacteria, bioinformatic analysis of the recently identified bacterial sphingolipid synthesis genes suggests that these lipids are likely to be produced by a wide range of microbial species.

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