ID 4.1.1.99 DE phosphomevalonate decarboxylase. CA (R)-5-phosphomevalonate + ATP = ADP + CO2 + isopentenyl phosphate + CA phosphate. CC -!- The enzyme participates in a mevalonate pathway that occurs in CC halophilic archaea. CC -!- The activity is also present in eubacteria of the Chloroflexi phylum. CC cf. EC 4.1.1.33 and EC 4.1.1.110. DR D4GXZ3, PMD_HALVD ; //