| tRNA sulfurtransferase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 2.8.1.4 | ||||||||
| CAS no. | 9055-57-6 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
In enzymology, a tRNA sulfurtransferase (EC 2.8.1.4) is an enzyme that catalyzes the chemical reaction
- L-cysteine + 'activated' tRNA L-serine + tRNA containing a thionucleotide
Thus, the two substrates of this enzyme are L-cysteine and 'activated' tRNA, whereas its two products are L-serine and tRNA containing a thionucleotide.
This enzyme belongs to the family of transferases, specifically the sulfurtransferases, which transfer sulfur-containing groups. The systematic name of this enzyme class is L-cysteine:tRNA sulfurtransferase. Other names in common use include transfer ribonucleate sulfurtransferase, RNA sulfurtransferase, ribonucleate sulfurtransferase, transfer RNA sulfurtransferase, and transfer RNA thiolase.
References[edit]
- Abrell JW, Kaufman EE, Lipsett MN (1971). "The biosynthesis of 4-thiouridylate. Separation and purification of two enzymes in the transfer ribonucleic acid-sulfurtransferase system". J. Biol. Chem. 246 (2): 294–301. doi:10.1016/S0021-9258(18)62490-1. PMID 5541999.
- Hayward RS, Weiss SB (1966). "RNA thiolase: the enzymatic transfer of sulfur from cysteine to sRNA in Escherichia coli extracts". Proc. Natl. Acad. Sci. U.S.A. 55 (5): 1161–8. doi:10.1073/pnas.55.5.1161. PMC 224294. PMID 5334200.
- Lipsett MN, Peterkofsky A (1966). "Enzymatic thiolation of E. coli sRNA". Proc. Natl. Acad. Sci. U.S.A. 55 (5): 1169–74. doi:10.1073/pnas.55.5.1169. PMC 224295. PMID 5334201.
- Wong TW, Weiss SB, Eliceiri GL, Bryant J (1970). "Ribonucleic acid sulfurtransferase from Bacillus subtilis W168 Sulfuration with beta-mercaptopyruvate and properties of the enzyme system". Biochemistry. 9 (11): 2376–86. doi:10.1021/bi00813a024. PMID 4987417.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction