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. Author manuscript; available in PMC: 2016 Dec 1.
Published in final edited form as: Annu Rev Vis Sci. 2016 Jul 18;2:197–234. doi: 10.1146/annurev-vision-111815-114407

Figure 9.

Figure 9

Crystal structures of retinoid-binding proteins important for visual function. (a) Retinol-binding protein 4 in complex with transthyretin (residues 76–87; red schematic with brown surface) and all-trans-retinol. (b) Cellular retinol-binding protein 1 in complex with all-trans-retinol. (c) Cellular retinaldehyde-binding protein in complex with 11-cis-retinal. (d) Module 2 from Xenopus laevis interphotoreceptor retinoid-binding protein. Potential retinoid-binding sites are shown as orange mesh. Retinoids are shown as orange sticks. The figure was generated with PyMol (Schrödinger, https://www.pymol.org/).