catalytic activity:ATP + L-cysteine + tRNA(Cys) = AMP + diphosphate + L-cysteinyl-tRNA(Cys).,cofactor:Binds 1 zinc ion per subunit.,similarity:Belongs to the class-I aminoacyl-tRNA synthetase family.,
Mitochondrion matrix .
Colon adenocarcinoma,Lung,Lymph node,Mammary gland,Salivary gland,Testis,