2A5F: Cholera Toxin A1 Subunit Bound To Its Substrate, Nad+, And I Protein Activator, Arf6
reference: Structural basis for the activation of cholera toxin by human ARF6-GTP., O'Neal CJ, Jobling MG, Holmes RK, Hol WG, Science. 2005 Aug 12;309(5737):1093-6. PMID: 16099990

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