| 5KVP: reference: Solution structure of the Cys74 to Ala74 mutant of the recombinant catalytic domain of Zoocin A., Xing M, Simmonds RS, Timkovich R, Proteins. 2016 Oct 3. doi: 10.1002/prot.25178. PMID: 27699884 |
This OCA 
Structure page
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(documentation).