IUBMB Enzyme Nomenclature


Accepted name: cysteine—tRNA ligase

Reaction: ATP + L-cysteine + tRNACys = AMP + diphosphate + L-cysteinyl-tRNACys

Other name(s): cysteinyl-tRNA synthetase; cysteinyl-transferRNA synthetase; cysteinyl-transfer ribonucleate synthetase; cysteine translase

Systematic name: L-cysteine:tRNACys ligase (AMP-forming)

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number: 37318-56-2


1. McCorquodale, D.J. The separation and partial purification of aminoacyl-RNA synthetases from Escherichia coli. Biochim. Biophys. Acta 91 (1964) 541-548.

[EC created 1972]

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