| 英文名 |
methylenetetrahydrofolate-tRNA-(uracil54-C5)-methyltransferase (FADH2-oxidizing) |
| Example Structure |
 |
| 别名 |
EC2.1.2.12, FDRTS, folate-dependent ribothymidyl synthase, folate-dependent tRNA methyltransferase, folate/FAD-dependent tRNA T54 methyltransferase, methylenetetrahydrofolate-transfer ribonucleate uracil 5-methyltransferase,, TRMFO, tRNA (m5U54)-methyltransferase, tRNA:m5U-54 MTase |
| EC Number |
2.1.1.74 |
| CAS编号 |
74665-78-4 |
| Comments |
A flavoprotein (FAD). Up to 25% of the bases in mature tRNA are post-translationally modified or hypermodified. One almost universal post-translational modification is the conversion of U54 into ribothymidine in the T¦·C loop, and this modification is found in most species studied to date [2]. Unlike this enzyme, which uses 5,10-methylenetetrahydrofolate and NAD(P)H to supply the atoms for methylation of U54, EC 2.1.1.35, tRNA (uracil54-C5)-methyltransferase, uses S-adenosyl-L-methionine. |
| Cofactor |
|
| History |
|
| Reactions |
5,10-methylenetetrahydrofolate + uracil(54) in tRNA + FADH(2) = tetrahydrofolate + 5-methyluracil(54) in tRNA + Fad. |
