6SJW:
reference: Structural Basis of Ca(2+)-Dependent Self-Processing Activity of Repeat-in-Toxin Proteins., Kuban V, Macek P, Hritz J, Nechvatalova K, Nedbalcova K, Faldyna M, Sebo P, Zidek L, Bumba L, mBio. 2020 Mar 17;11(2). pii: mBio.00226-20. doi: 10.1128/mBio.00226-20. PMID: 32184239

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