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. Author manuscript; available in PMC: 2015 Mar 1.
Published in final edited form as: Exp Eye Res. 2014 Jan 12;120:167–174. doi: 10.1016/j.exer.2014.01.002

Fig. 4.

Fig. 4

Homology modeling of bIRBP module 4 with a molecule of all-trans retinol (purple) docked into the putative ligand-binding site (tryptophan residue is in blue). Structural modeling shown here predicts that cysteine 1051 (yellow) is located at the mouth of the hydrophobic ligand-binding site.