1PJ9:
reference: Improved thermostability of bacillus circulans cyclodextrin glycosyltransferase by the introduction of a salt bridge., Leemhuis H, Rozeboom HJ, Dijkstra BW, Dijkhuizen L, Proteins 2004 Jan 1;54(1):128-34. PMID: 14705029

This OCA Structure page
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