| PDB ID: 4rdx Macromolecule: HISTIDINE--TRNA LIGASE Source Organism: Thermus thermophilus Pfam Annotation: PF03129(tRNA-synt_His)PF13393(HGTP_anticodon) Ligand ID: HIS Drugbank ID: DB00117(L-Histidine) HETATM residue: HIS A 502 No. of binding residues: 7 |