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RBP4 / Retinol Binding Protein 4 Antibody [RBP4/4049]

In Stock
Catalog Number Formulation Size Price
5950-MSM9-P0
Purified Ab with BSA and Azide at 200ug/ml
20ug
$229.00
5950-MSM9-P1
Purified Ab with BSA and Azide at 200ug/ml
100ug
$519.00
5950-MSM9-P1ABX
Purified Ab WITHOUT BSA and Azide at 1.0mg/ml
100ug
$519.00
Flat Rate Domestic: $60 | Orders outside the US - Contact Us for Order Information | Ships next business day

Applications & Dilutions

Applications Tested Dillution Protocol Note
Immunohistochemistry (IHC)
1-2ug/ml
30 min at RT. Staining of formalin-fixed tissues requires heating tissue sections in 10mM Tris with 1mM EDTA, pH 9.0, for 45 min at 95°C followed by cooling at RT for 20 minutes

Summary

Retinol (Vitamin A) is transported in the blood bound to its carrier protein, retinol-binding protein (RBP), also designated plasma retinol-binding protein (PRBP) or RBP4. A member of the lipocalin family, RBP conveys retinol from stores in the liver to peripheral tissues. In plasma, RBP binds transthyretin (TTR, formerly called prealbumin) to prevent glomerular filtration of low molecular weight RBP in the kidneys. The stability of this complex holds diagnostic importance because the molar ratio of RBP:TTR provides an indirect way to indicate marginal Vitamin A deficiency. Vitamin A deficiency blocks the secretion of RBP, resulting in defective delivery and supply to epidermal cells. Originally identified solely as a transporter protein, recent studies correlating increased levels of RBP expression in adipose tissue with Insulin resistance have generated research into the possible roles the protein may play in the pathogenesis of type 2 diabetes and obesity.

Product Properties & Targets

Antibody Type
Host
Mouse
Applications
Species Reactivity
Isotype / Light Chain
IgG1 / Kappa
Cellular Localization
Secreted
Gene Name
Positive Control
HeP-G2 cells. Human kidney, pancreas or liver tissues.
Immunogen
Recombinant fragment (around aa29-148) of human RBP4 protein (exact sequence is proprietary)
Alternate Names
Retinol-binding protein 4, Plasma retinol-binding protein, Plasma retinol binding protein 4 (PRBP); RDCCAS; Retinol binding protein 4 interstitial

Database Links

Entrez Gene ID
SwissProt

Additional Information

Clone
RBP4/4049
Chromosome Location
10q23.33
Mol. Weight of Antigen
25kDa

Functions

  • 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).

Key References

  • Cheng Y, et al. Proteomics analysis for finding serum markers of ovarian cancer. Biomed Res Int 2014;2014:179040

Storage & Stability

Antibody with azide store at 2 to 8 °C. Antibody without azide store at -20 to -80 °C. Antibody is stable for 24 months. Non-hazardous. No MSDS required.

Limitations

This antibody is available for research use only and is not approved for use in diagnosis.

Supplied as

200ug/ml of Ab purified from Bioreactor Concentrate by Protein A/G. Prepared in 10mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA & azide at 1.0mg/ml.

Warranty

There are no warranties, expressed or implied, which extend beyond this description. Company is not liable for any personal injury or economic loss resulting from this product.

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