Overview
| Product name | Recombinant Human Retinol-binding protein 4/PRBP Protein |
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| Catalog No. | RP00274 |
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| Description | Recombinant Human Retinol-binding protein 4/PRBP Protein is produced by HEK293 expression system. The target protein is expressed with sequence (Glu19-Leu201) of human RBP4 (Accession #NP_006735.2) fused with a 6×His tag at the C-terminus. |
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| Bio-Activity | Measured by its binding ability in a functional ELISA. Immobilized Human RBP4 Protein at 2 μg/mL (100 μL/well) can bind RBP4 Rabbit mAb with a linear range of 0.12-2.4 ng/mL.
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| Purity | > 97% by SDS-PAGE. |
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| Endotoxin | < 0.1 EU/μg of the protein by LAL method. |
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| Formulation | Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4.Contact us for customized product form or formulation. |
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| Species | Human |
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| Calculated MW | 21.91 kDa |
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Background
This protein belongs to the lipocalin family and is the specific carrier for retinol (vitamin A alcohol) in the blood. It delivers retinol from the liver stores to the peripheral tissues. In plasma, the RBP-retinol complex interacts with transthyretin which prevents its loss by filtration through the kidney glomeruli. A deficiency of vitamin A blocks secretion of the binding protein posttranslationally and results in defective delivery and supply to the epidermal cells.
Product information
| Synonym | MCOPCB10; RDCCAS; RBP4; RDCCAS |
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| Expression Host | HEK293 cells |
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| Tag | C-His |
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| Swiss-Prot | |
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| Gene ID | |
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Usage guide
| Storage | Store at -20℃.Store the lyophilized protein at -20℃ to -80 ℃ up to 1 year from the date of receipt.
After reconstitution, the protein solution is stable at -20℃ for 3 months, at 2-8℃ for up to 1 week. |
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| Reconstitution | Centrifuge the vial before opening. Reconstitute to a concentration of 0.1-0.5 mg/mL in sterile distilled water. Avoid vortex or vigorously pipetting the protein. For long term storage, it is recommended to add a carrier protein or stablizer (e.g. 0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose), and aliquot the reconstituted protein solution to minimize free-thaw cycles. |
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* For research use only. Not for therapeutic or diagnostic purposes.
