O-phospho-L-serine—tRNA ligase

O-phospho-L-serine—tRNA ligase (, O-phosphoseryl-tRNA ligase, non-canonical O-phosphoseryl-tRNA synthetase, SepRS) is an enzyme with systematic name O-phospho-L-serine:tRNACys ligase (AMP-forming). This enzyme catalyses the following chemical reaction:


 * ATP + O-phospho-L-serine + tRNACys $$\rightleftharpoons$$ AMP + diphosphate + O-phospho-L-seryl-tRNACys

In organisms like Archaeoglobus fulgidus, this enzyme ligates O-phosphoserine to tRNACys.