9bcb is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
↑ Folli C, Calderone V, Ottonello S, Bolchi A, Zanotti G, Stoppini M, Berni R. Identification, retinoid binding, and x-ray analysis of a human retinol-binding protein. Proc Natl Acad Sci U S A. 2001 Mar 27;98(7):3710-5. PMID:11274389 doi:http://dx.doi.org/10.1073/pnas.061455898