:Isopentenyl phosphate kinase

{{Infobox enzyme

| Name = Isopentenyl phosphate kinase

| EC_number = 2.7.4.26

| CAS_number =

| GO_code =

| image =

| width =

| caption =

}}

Isopentenyl phosphate kinase ({{EC number|2.7.4.26}}) is an enzyme with systematic name ATP:isopentenyl phosphate phosphotransferase.{{cite journal | vauthors = Grochowski LL, Xu H, White RH | title = Methanocaldococcus jannaschii uses a modified mevalonate pathway for biosynthesis of isopentenyl diphosphate | journal = Journal of Bacteriology | volume = 188 | issue = 9 | pages = 3192–8 | date = May 2006 | pmid = 16621811 | pmc = 1447442 | doi = 10.1128/JB.188.9.3192-3198.2006 }}{{cite journal | vauthors = Lange BM, Croteau R | title = Isopentenyl diphosphate biosynthesis via a mevalonate-independent pathway: isopentenyl monophosphate kinase catalyzes the terminal enzymatic step | journal = Proceedings of the National Academy of Sciences of the United States of America | volume = 96 | issue = 24 | pages = 13714–9 | date = November 1999 | pmid = 10570138 | pmc = 24130 | doi = 10.1073/pnas.96.24.13714 | doi-access = free }}{{cite journal | vauthors = Chen M, Poulter CD | title = Characterization of thermophilic archaeal isopentenyl phosphate kinases | journal = Biochemistry | volume = 49 | issue = 1 | pages = 207–17 | date = January 2010 | pmid = 19928876 | pmc = 3856865 | doi = 10.1021/bi9017957 }}{{cite journal | vauthors = Mabanglo MF, Schubert HL, Chen M, Hill CP, Poulter CD | title = X-ray structures of isopentenyl phosphate kinase | journal = ACS Chemical Biology | volume = 5 | issue = 5 | pages = 517–27 | date = May 2010 | pmid = 20402538 | pmc = 2879073 | doi = 10.1021/cb100032g }} This enzyme catalyses the following chemical reaction

: ATP + isopentenyl phosphate $\backslash rightleftharpoons$ ADP + isopentenyl diphosphate

This enzyme takes part in the mevalonate pathway in Archaea.