English: Cartoon model of active Rab11b-GppNP complex (PDB-ID: 2F9M). This model includes amino acids 8-188. The model shows classic Ras-like structure with a six stranded beta sheet core encircled by 5 major and one minor α-helix. GppNp and Mg2+ form polar bonds with the residues S20, K24, S25, N27, S40/S42/T43 (switch1), N124, K125, D127, S154, and with some parts of the backbone highlighted in olive green. Hydrogen-bonds are drawn as black dots. Atoms of GppNP, Mg2+, and sidechains are colored corresponding to their element. O = red, N = blue, P = orange, and Mg = green. The purple sequence represents the Rab-typical α310 helix region.
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