2ZS6:
reference: Crystal structure of the HA3 subcomponent of Clostridium botulinum type C progenitor toxin., Nakamura T, Kotani M, Tonozuka T, Ide A, Oguma K, Nishikawa A, J Mol Biol. 2009 Jan 30;385(4):1193-206. Epub 2008 Nov 27. PMID: 19071137

This OCA Structure page
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