1D1G:
reference: The crystal structure of dihydrofolate reductase from Thermotoga maritima: molecular features of thermostability., Dams T, Auerbach G, Bader G, Jacob U, Ploom T, Huber R, Jaenicke R, J Mol Biol 2000 Mar 31;297(3):659-72. PMID: 10731419

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