1K1D:
reference: Crystal structure of D-hydantoinase from Bacillus stearothermophilus: insight into the stereochemistry of enantioselectivity., Cheon YH, Kim HS, Han KH, Abendroth J, Niefind K, Schomburg D, Wang J, Kim Y, Biochemistry 2002 Jul 30;41(30):9410-7. PMID: 12135362

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