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Research Catalog · peptide family

Retinol-Binding Protein 4 (RBP4) — Research Products

11 catalog items

Catalog # Product Type Species Size Price Add to cart
028-28 Retinal Binding Protein 4 (RBP4) (Human) Peptides Human 50 µg $395.00 $465.00
B-028-28 Retinal Binding Protein 4 (RBP4) (Human) – Biotin Labeled Biotin-labeled Labeled Peptides Human 10 µg $512.00 $603.00
FC3-028-28 Retinal Binding Protein 4 (RBP4) (Human) – Cy3 Labeled Fluorescent-labeled Labeled Peptides Human 1 nmol $851.00 $1002.00
EK-028-28 Retinal Binding Protein 4 (RBP4) (Human) – EIA Kit, extraction-free ELISA / EIA kit Assay Kits Human 96 wells $715.00 $842.00
EK-028-28CE Retinal Binding Protein 4 (RBP4) (Human) – EIA Kit, extraction-free, CE Mark Certified ELISA / EIA kit Assay Kits Human 96 wells $744.00 $876.00
FG-028-28A Retinal Binding Protein 4 (RBP4) (Human) – FAM Labeled Fluorescent-labeled Labeled Peptides Human 1 nmol $512.00 $603.00
FG-028-28B Retinal Binding Protein 4 (RBP4) (Human) – FITC Labeled Fluorescent-labeled Labeled Peptides Human 1 nmol $512.00 $603.00
T-028-28 Retinal Binding Protein 4 (RBP4) (Human) – I-125 Labeled I-125 labeled Labeled Peptides Human 10 µCi $1159.00 $1364.00
G-028-28A Retinal Binding Protein 4 (RBP4) (Human) – Purified IgG Antibody Purified IgG Antibodies Human 100 µg $375.00 $442.00
G-028-28B Retinal Binding Protein 4 (RBP4) (Human) – Purified IgG Antibody Purified IgG Antibodies Human 200 µg $612.00 $720.00
RK-028-28 Retinal Binding Protein 4 (RBP4) (Human) – RIA Kit RIA kit Assay Kits Human 125 tubes $1074.00 $1264.00

All items are supplied for in vitro laboratory research use only — not for human or veterinary use, diagnosis or therapy. Prices are per unit as listed; each catalog number ships with its Certificate of Analysis.

Retinol-Binding Protein 4 (RBP4) — frequently asked

What is RBP4?
Retinol-binding protein 4 is a small secreted lipocalin that serves as the main circulating carrier of retinol. It is produced largely by the liver, binds its ligand inside a beta-barrel pocket, and associates with transthyretin in plasma.
Why is RBP4 studied beyond vitamin A transport?
RBP4 is also secreted by adipose tissue, and many published studies examine associations between its circulating concentration and metabolic parameters. These reports are largely correlative, and interpretations differ between cohorts, species and analytical methods used.
What affects RBP4 measurement?
RBP4 circulates both free and bound to transthyretin, and C-terminal proteolysis produces truncated forms. Antibody epitope selection, sample matrix and whether an assay requires extraction all influence the values obtained, so method details should accompany reported results.