Human Retinol Binding Protein 4, RBP-4 ELISA Kit from Bioassay Technology Laboratory

Retinol-binding protein that mediates retinol transport in blood plasma (PubMed: 5541771). Delivers retinol from the liver stores to the peripheral tissues (Probable). Transfers the bound all-trans retinol to STRA6, that then facilitates retinol transport across the cell membrane (PubMed: 22665496)