Retinol-binding protein 4
Function
Retinol-binding protein that mediates retinol transport in blood plasma. Delivers retinol from the liver stores to the peripheral tissues. Transfers the bound all-trans retinol to STRA6, that then facilitates retinol transport across the cell membrane.
Sequence Similarities
Belongs to the calycin superfamily. Lipocalin family.
Cellular localization
- Secreted
Alternative names
Retinol-binding protein 4, Plasma retinol-binding protein, PRBP, RBP, Rbp4