Retinol-Binding Protein

Human holo cellular retinol-binding protein II (CRBP-II). Retinol-binding proteins (RBP) are a family of proteins with diverse functions:

http://en.wikipedia.org/wiki/Retinol_binding_protein

This model is based on Protein Data Bank entry 2RCT:

http://www.rcsb.org/pdb/explore.do?structureId=2RCT

STL file created using VMD:

http://www.ks.uiuc.edu/Research/vmd/

The protein backbone is represented in "cartoon" form. Residues contacting retinol are shown as spheres.