| EC |
2.5.1.75 |
| Accepted name: |
tRNA dimethylallyltransferase |
| Reaction: |
prenyl diphosphate + adenosine37 in tRNA = diphosphate + N6-(3-methylbut-2-en-1-yl)-adenosine37 in tRNA |
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For diagram of N6-(Dimethylallyl)adenosine37 modified tRNA biosynthesis, click here |
| Glossary: |
N6-(3-methylbut-2-en-1-yl)-adenine37 in tRNA = N6-dimethylallyladenine37 in tRNA |
| Other name(s): |
tRNA prenyltransferase; MiaA; transfer ribonucleate isopentenyltransferase (incorrect); Δ2-isopentenyl pyrophosphate:tRNA-Δ2-isopentenyl transferase (incorrect); Δ2-isopentenyl pyrophosphate:transfer ribonucleic acid Δ2-isopentenyltransferase (incorrect); dimethylallyl-diphosphate: tRNA dimethylallyltransferase; dimethylallyl-diphosphate:adenine37 in tRNA dimethylallyltransferase |
| Systematic name: |
prenyl-diphosphate:adenine37 in tRNA prenyltransferase |
| Comments: |
Formerly known as tRNA isopentenyltransferase, but it is now known that prenyl diphosphate, rather than isopentenyl diphosphate, is the substrate. |
| Links to other databases: |
BRENDA, EXPASY, KEGG, MetaCyc, PDB |
| References: |
| 1. |
Leung, H.C., Chen, Y. and Winkler, M.E. Regulation of substrate recognition by the MiaA tRNA prenyltransferase modification enzyme of Escherichia coli K-12. J. Biol. Chem. 272 (1997) 13073–13083. [DOI] [PMID: 9148919] |
| 2. |
Soderberg, T. and Poulter, C.D. Escherichia coli dimethylallyl diphosphate:tRNA dimethylallyltransferase: essential elements for recognition of tRNA substrates within the anticodon stem-loop. Biochemistry 39 (2000) 6546–6553. [DOI] [PMID: 10828971] |
| 3. |
Moore, J.A., Mathis, J.R. and Poulter, C.D. Escherichia coli dimethylallyl diphosphate:tRNA dimethylallyltransferase: pre-steady-state kinetic studies. Biochim. Biophys. Acta 1479 (2000) 166–174. [DOI] [PMID: 11004538] |
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| [EC 2.5.1.75 created 1972 as EC 2.5.1.8, transferred 2009 to EC 2.5.1.75] |
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