2Q3X:
reference: Crystal structure of the RIM1alpha C2B domain at 1.7 A resolution., Guan R, Dai H, Tomchick DR, Dulubova I, Machius M, Sudhof TC, Rizo J, Biochemistry. 2007 Aug 7;46(31):8988-98. Epub 2007 Jul 14. PMID: 17630786

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