[5][6][7] RBP1 is the carrier protein involved in the transport of retinol (vitamin A alcohol) from the liver storage site to peripheral tissue.

The gene harbors four exons encoding 24, 59, 33, and 16 amino acid residues, respectively.

[5] Cellular retinol-binding protein-1 (CRBP-1) contributes to the maintenance of the differentiative state of endometrial cells through the regulation of bioavailability of retinol.

On the converse, loss of CRBP-1 is associated with development of endometrial cancer.

This article on a gene on human chromosome 3 is a stub.