1HTT | A:326-423; B:326-422; C:326-422; D:326-422 | HISTIDYL-TRNA SYNTHETASE |
1KMM | A:326-422; B:326-422; C:326-422; D:326-422 | HISTIDYL-TRNA SYNTHETASE COMPLEXED WITH HISTIDYL-ADENYLATE |
1KMN | A:326-422; C:326-422; D:326-422; B:326-422 | HISTIDYL-TRNA SYNTHETASE COMPLEXED WITH HISTIDINOL AND ATP |