1B8A:
reference: Crystal structure of aspartyl-tRNA synthetase from Pyrococcus kodakaraensis KOD: archaeon specificity and catalytic mechanism of adenylate formation., Schmitt E, Moulinier L, Fujiwara S, Imanaka T, Thierry JC, Moras D, EMBO J 1998 Sep 1;17(17):5227-37. PMID: 9724658

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