1TQ0:
reference: The anticoagulant thrombin mutant W215A/E217A has a collapsed primary specificity pocket., Pineda AO, Chen ZW, Caccia S, Cantwell AM, Savvides SN, Waksman G, Mathews FS, Di Cera E, J Biol Chem 2004 Sep 17;279(38):39824-8. Epub 2004 Jul 13. PMID: 15252033

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