Molecular cloning, DNA sequencing, and biochemical analyses of Escherichia coli glyoxylate carboligase. An enzyme of the acetohydroxy acid synthase-pyruvate oxidase family.

Glyoxylate carboligase (Gcl) (EC 4.1.1.47) of Escherichia coli catalyzes the condensation of two molecules of glyoxylate to give tartronic semialdehyde, a key intermediate in glyoxylate catabolism. We report the cloning, genomic location, and DNA sequence of the gene (called gcl) encoding E. coli Gcl and isolation of mutants lacking the enzyme. Gcl is a… (More)