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Stereo image of a close-up of the R–C subunit interface from the lowest energy filtered dot solution. The C-subunit is shown in gray, and RIα is in gold. Glu-143 (R) is in contact with Lys-213 (C). The side chain of Trp-196 (C) is in green and is predicted to contact Arg-230/Arg-231 (R). Arg-194 (C) is predicted to contact Asp-227 (R). Lys-254 (C) and Glu-248 (C) are also in the interface.
