1BVI:
reference: Dissection of the structural and functional role of a conserved hydration site in RNase T1., Langhorst U, Loris R, Denisov VP, Doumen J, Roose P, Maes D, Halle B, Steyaert J, Protein Sci 1999 Apr;8(4):722-30. PMID: 10211818

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