hydrolysis of KDO 8-P to KDO and inorganic phosphate, is the last enzyme in the KDO
biosynthetic pathway for which the gene has not been identified. Wild-type KDO 8-P
phosphatase was purified from Escherichia coli B, and the N-terminal amino acid sequence
matched a hypothetical protein encoded by the E. coli open reading frame, yrbI. The yrbI
gene, which encodes for a protein of 188 amino acids, was cloned, and the gene product …