ID 5.5.1.1 DE muconate cycloisomerase. AN cis,cis-muconate lactonizing enzyme I. AN muconate cycloisomerase I. AN muconate lactonizing enzyme. CA (S)-muconolactone = cis,cis-muconate + H(+). CC -!- Also acts, in the reverse reaction, on 3-methyl-cis,cis-muconate and, CC very slowly, on cis,trans-muconate. CC -!- Not identical with EC 5.5.1.7 or EC 5.5.1.11. DR O33946, CATB1_ACILW; O33949, CATB2_ACILW; Q43931, CATB_ACIAD ; DR P08310, CATB_PSEPU ; P95608, CATB_RHOOP ; P46057, MLE_CUTCT ; //