5.99.1.4 2-hydroxychromene-2-carboxylate isomerase - 5.99.1.2 DNA topoisomerase transferred to EC 5.6.2.1 5.99.1.3 DNA topoisomerase (ATP-hydrolysing) transferred to EC 5.6.2.2 5.99.1.1 thiocyanate isomerase -