Reaction: ATP + L-methionine + tRNAMet = AMP + diphosphate + L-methionyl-tRNAMet
Other name(s): methionyl-tRNA synthetase; methionyl-transfer ribonucleic acid synthetase; methionyl-transfer ribonucleate synthetase; methionyl-transfer RNA synthetase; methionine translase; MetRS
Systematic name: L-methionine:tRNAMet ligase (AMP-forming)
Comments: In those organisms producing N-formylmethionyl-tRNAfMet for translation initiation, this enzyme also recognizes the initiator tRNAfMet and catalyses the formation of L-methionyl-tRNAfMet, the substrate for EC 22.214.171.124, methionyl-tRNA formyltransferase.
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number: 9033-22-1
1. Bergmann, F.H., Berg, P. and Dieckmann, M. The enzymic synthesis of amino acyl derivatives of ribonucleic acid. II. The preparation of leucyl-, valyl-, isoleucyl- and methionyl ribonucleic acid synthetases from Escherichia coli. J. Biol. Chem. 236 (1961) 1735-1740.
2. Lee, C.P., Dyson, M.R., Mandal, N., Varshney, U., Bahramian, B. and RajBhandary, U.L. Striking effects of coupling mutations in the acceptor stem on recognition of tRNAs by Escherichia coli Met-tRNA synthetase and Met-tRNA transformylase.
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