Valin-tRNK ligaza (EC 6.1.1.9, valil-tRNK sintetaza, valil-transferna ribonukleatna sintetaza, valil-transferna RNK sintetaza, valil-transferna ribonukleinsko kiselinska sintetaza, valin transferna ribonukleatna ligaza, valinska translaza) je enzim sa sistematskim imenom L-valin:tRNKVal ligaza (formira AMP).[1][2] Ovaj enzim katalizuje sledeću hemijsku reakciju
- ATP + L-valin + tRNKVal AMP + difosfat + L-valil-tRNKVal
- ↑ Berg, P., Bergmann, F.H., Ofengand, E.J. and Dieckmann, M. (1961). „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: 1726-1734.
- ↑ Bergmann, F.H., Berg, P. and Dieckmann, M. (1961). „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: 1735-1740.