This list contains a list of EC numbers for the fifth group, EC 5, isomerases, placed in numerical order as determined by the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology. All official information is tabulated at the website of the committee.[1] The database is developed and maintained by Andrew McDonald.[2]
EC5.2.1.3: Now known to be catalysed by a pathway involving EC1.1.1.300, NADP-retinol dehydrogenase; EC2.3.1.135, phosphatidylcholine—retinol O-acyltransferase; EC3.1.1.64, retinoid isomerohydrolase; and EC1.1.1.315, 11-cis-retinol dehydrogenase.
EC5.4.2.1: Now recognized as two separate enzymes EC5.4.2.11, phosphoglycerate mutase (2,3-diphosphoglycerate-dependent) and EC5.4.2.12, phosphoglycerate mutase (2,3-diphosphoglycerate-independent)
EC5.5.1.21: copal-8-ol diphosphate synthase. The enzyme was discovered at the public-review stage to have been misclassified and so was withdrawn. See EC4.2.1.133, copal-8-ol diphosphate hydratase