2PKY:
reference: The effect of deuteration on protein structure: a high-resolution comparison of hydrogenous and perdeuterated haloalkane dehalogenase., Liu X, Hanson BL, Langan P, Viola RE, Acta Crystallogr D Biol Crystallogr. 2007 Sep;63(Pt 9):1000-8. Epub 2007, Aug 17. PMID: 17704569

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