(R)-3,5-bisphosphomevalonate + H(+) <=> isopentenyl phosphate + phosphate + CO2
(r)-3,5-bisphosphomevalonate + h(+) <=> isopentenyl phosphate + phosphate + co2
(R)-3,5-bisphosphomevalonate + H(+) <=> isopentenyl phosphate + phosphate + CO2
(r)-3,5-bisphosphomevalonate + h(+) <=> isopentenyl phosphate + phosphate + co2