RBP4/Retinol-Binding Protein 4 Antibody (423619) [Unconjugated]

Retinol (also known as vitamin A) is unstable and insoluble in the aqueous solution. However, retinol becomes quite stable and soluble in plasma due to its tight interaction with Retinol-binding Protein 4 (RBP4), also known as Plasma Retinol-binding Protein (1‑3). A prototypic member of the lipocalin superfamily, RBP4 has a beta ‑barrel structure with a well-defined cavity. It is secreted from the liver, a process requiring the availability of retinol. RBP4 delivers retinol from the liver to the peripheral tissues. In plasma, the RBP4-retinol complex interacts with transthyretin (TTR), also known as thyroxine-binding protein and prealbumin. The retinol-RBP4-TTR complex prevents the loss of RBP4 by filtration through the kidney and increases the stability of the retinol-RBP4 complex. Defects in RBP4 cause retinol-binding protein deficiency, which affects night vision. Serum RBP4 levels are elevated in insulin-resistant mice and humans with obesity and type 2 diabetes, implying that RBP4, an adipocyte-derived signal, may be a biomarker and a drug target for the two diseases. The amino acid sequence of mouse RBP4 is 99%, 86%, 83% and 75% identical to that of rat, human/chimpanzee, dog and chicken.

• RBP4/Retinol-Binding Protein 4 Antibodies
• RBP4/Retinol-Binding Protein 4 Antibody Pair
• RBP4/Retinol-Binding Protein 4 ELISA Kits
• RBP4/Retinol-Binding Protein 4 Lysate
• RBP4/Retinol-Binding Protein 4 Proteins
• RBP4/Retinol-Binding Protein 4 Proteins and Enzymes
• RBP4/Retinol-Binding Protein 4 ELISAs