Retinol Binding Protein 4 (RBP4) is a member of the Lipocalin family and in the blood. RBP4 is the specific vector for retinol. RBP4 is expressed and secreted by adipose tissue, and is associated with insulin resistance. RBP4 delivers retinol from the liver stores to the peripheral tissues. In plasma, the RBP-retinol complex interacts with transthyretin to prevents its loss by filtration through the kidney glomeruli. Defects in RBP4 cause retinol-binding protein deficiency and can cause night vision problems.
Pack Size | Availability | Price/USD | Quantity |
---|---|---|---|
10 μg | 5 days | $ 97.00 | |
50 μg | 5 days | $ 272.00 | |
500 μg | 5 days | $ 1,900.00 | |
1 mg | 5 days | $ 2,730.00 |
Description | Retinol Binding Protein 4 (RBP4) is a member of the Lipocalin family and in the blood. RBP4 is the specific vector for retinol. RBP4 is expressed and secreted by adipose tissue, and is associated with insulin resistance. RBP4 delivers retinol from the liver stores to the peripheral tissues. In plasma, the RBP-retinol complex interacts with transthyretin to prevents its loss by filtration through the kidney glomeruli. Defects in RBP4 cause retinol-binding protein deficiency and can cause night vision problems. |
Species | Human |
Expression System | E. coli |
Tag | None |
Accession Number | P02753 |
Synonyms | Retinol-Binding Protein 4, Plasma Retinol-Binding Protein, PRBP, RBP, RBP4 |
Amino Acid | Glu19-Leu201 |
Construction | Recombinant Human Retinol-Binding Protein 4 is produced by our E.coli expression system and the target gene encoding Glu19-Leu201 is expressed. |
Protein Purity | Greater than 90% as determined by reducing SDS-PAGE. (QC verified) |
Molecular Weight | 20 KDa, reducing conditions |
Endotoxin | Less than 0.1 ng/µg (1 EU/µg) as determined by LAL test. |
Formulation | Lyophilized from a 0.2 μm filtered solution of 50mM Tris-HCl, 10mM CaCl<sub>2</sub>, 150mM NaCl, pH 7.5 . |
Reconstitution | Always centrifuge tubes before opening.Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100μg/ml. Dissolve the lyophilized protein in distilled water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles. |
Stability & Storage |
Lyophilized protein should be stored at ≤ -20°C, stable for one year after receipt. Reconstituted protein solution can be stored at 2-8°C for 2-7 days. Aliquots of reconstituted samples are stable at ≤ -20°C for 3 months. |
Shipping |
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature listed below. |
Research Background | Retinol Binding Protein 4 (RBP4) is a member of the Lipocalin family and in the blood. RBP4 is the specific vector for retinol. RBP4 is expressed and secreted by adipose tissue, and is associated with insulin resistance. RBP4 delivers retinol from the liver stores to the peripheral tissues. In plasma, the RBP-retinol complex interacts with transthyretin to prevents its loss by filtration through the kidney glomeruli. Defects in RBP4 cause retinol-binding protein deficiency and can cause night vision problems. |
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Please read the User Guide of Recombinant Proteins for more specific information.
RBP4 Protein, Human, Recombinant Retinol-Binding Protein 4 RBP 4 RBP-4 Plasma Retinol-Binding Protein PRBP RBP RBP4 recombinant recombinant-proteins proteins protein