1D3C:
reference: The cyclization mechanism of cyclodextrin glycosyltransferase (CGTase) as revealed by a gamma-cyclodextrin-CGTase complex at 1.8-A resolution., Uitdehaag JC, Kalk KH, van Der Veen BA, Dijkhuizen L, Dijkstra BW, J Biol Chem 1999 Dec 3;274(49):34868-76. PMID: 10574960

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