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Position of λ2 polymorphisms on λ2 pentamer. (A) Top view of the λ2 pentamer rendered using UCSF Chimera from PDB entry 2CSE is shown with each λ2 monomer in a different color (94). The positions of residue 504 (orange) and 509 (red) and the σ1 trimer are shown using an asterisk. The yellow ribbon indicates the position of the underside of the λ2 flap domain. (B and C) A side of the same molecule (B) and a magnification of the inset from panel B (C) are shown.
