EC 4.1.1.33     
Accepted name: diphosphomevalonate decarboxylase
Reaction: ATP + (R)-5-diphosphomevalonate = ADP + phosphate + isopentenyl diphosphate + CO2
Other name(s): pyrophosphomevalonate decarboxylase; mevalonate-5-pyrophosphate decarboxylase; pyrophosphomevalonic acid decarboxylase; 5-pyrophosphomevalonate decarboxylase; mevalonate 5-diphosphate decarboxylase; ATP:(R)-5-diphosphomevalonate carboxy-lyase (dehydrating)
Systematic name: ATP:(R)-5-diphosphomevalonate carboxy-lyase (adding ATP; isopentenyl-diphosphate-forming)
References:
1.  Bloch, K., Chaykin, S., Phillips, A.H. and de Waard, A. Mevalonic acid pyrophosphate and isopentenyl pyrophosphate. J. Biol. Chem. 234 (1959) 2595–2604. [PMID: 13801508]
[EC 4.1.1.33 created 1961]