Histidine-tRNA Ligase

His-tRNA Ligase; Histidyl-tRNA Synthetase; Jo-1 Antigen; Antigen, Jo-1; His tRNA Ligase; Histidine tRNA Ligase; Histidyl tRNA Synthetase; Jo 1 Antigen; Ligase, His-tRNA; Ligase, Histidine-tRNA; Synthetase, Histidyl-tRNA
An enzyme that activates histidine with its specific transfer RNA. EC 6.1.1.21.