EC 6.1.1.4     
Accepted name: leucine—tRNA ligase
Reaction: ATP + L-leucine + tRNALeu = AMP + diphosphate + L-leucyl-tRNALeu
Other name(s): leucyl-tRNA synthetase; leucyl-transfer ribonucleate synthetase; leucyl-transfer RNA synthetase; leucyl-transfer ribonucleic acid synthetase; leucine-tRNA synthetase; leucine translase
Systematic name: L-leucine:tRNALeu ligase (AMP-forming)
References:
1.  Allen, E.H., Glassman, E. and Schweet, R.S. Incorporation of amino acids into ribonucleic acid. I. The role of activating enzymes. J. Biol. Chem. 235 (1960) 1061–1067. [PMID: 13792726]
2.  Berg, P., Bergmann, F.H., Ofengand, E.J. and Dieckmann, M. The enzymic synthesis of amino acyl derivatives of ribonucleic acid. I. The mechanism of leucyl-, valyl-, isoleucyl- and methionyl ribonucleic acid formation. J. Biol. Chem. 236 (1961) 1726–1734.
3.  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.
[EC 6.1.1.4 created 1961]