Members of this family catalyse the first step in aromatic amino acid biosynthesis from chorismate. E-coli has three related synthetases, which are inhibited by different aromatic amino acids. This family also includes KDSA which has very similar cat ...
Members of this family catalyse the first step in aromatic amino acid biosynthesis from chorismate. E-coli has three related synthetases, which are inhibited by different aromatic amino acids. This family also includes KDSA which has very similar catalytic activity but is involved in the first step of liposaccharide biosynthesis. The enzyme is also part of the shikimate pathway, EC:2.5.1.54.
3-deoxy-d-manno-s-octulosonate-8-phosphate synthase from Escherichia coli (KDO8P) is responsible for the synthesis of the named product from Phosphenol Pyruvate (PEP) and arabinose-5-phosphate (A5P). It thus plays a role in the synthesis of complex lipids for the gram negative bacterial cell wall, so is a possible target for antibiotics. It displays homology with many PEP utilising enzymes, particularly the metal dependent enzyme DAHP synthase which works by a similar mechanism where a single amino acid change of non-metallo KDO8P changes it to metallo-KDO8P.
