2LZE:
reference: Structure and dynamics of a primordial catalytic fold generated by in vitro evolution., Chao FA, Morelli A, Iii JC, Churchfield L, Hagmann LN, Shi L, Masterson LR, Sarangi R, Veglia G, Seelig B, Nat Chem Biol. 2012 Dec 9. doi: 10.1038/nchembio.1138. PMID: 23222886

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