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QuickStep Human RBP4 (Retinol Binding Protein 4, Plasma) ELISA Kit

SKU:
AEES00635
Product Type:
ELISA Kit
ELISA Type:
Sandwich
Size:
96 Assays
Reactivity:
Human
Sensitivity:
1.98 ng/mL
Range:
3.13-100 ng/mL
Sample Type:
Serum
€499
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Description

Product Name:QuickStep Human RBP4 (Retinol Binding Protein 4, Plasma) ELISA Kit
Product Code:AEES00635
Assay Type:Sandwich
Format:96 Assays
Assay Time:2.5h
Reactivity:Human
Detection Range:3.13-100 ng/mL
Sensitivity:1.98 ng/mL
Sample Type & Sample Volume:Serum, plasma, urine, 50μL
Specificity:This kit recognizes Human RBP4 in samples. No significant or interference between Human RBP4 and analogues was observed.
Reproducibility:Both intra-CV and inter-CV are < 10%.
Application:This ELISA kit applies to the in vitro quantitative determination of Human RBP4 concentrations in serum, plasma, urine.Please consult technical support for the applicability if other biological fluids need to be tested.

This ELISA kit uses the Sandwich-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Human RBP4. Samples (or Standards) and biotinylated detection antibody specific for Human RBP4 are added to the micro ELISA plate wells. Human RBP4 would combine with the specific antibody. Then Avidin-Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate well and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Human RBP4, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 ± 2 nm. The OD value is proportional to the concentration of Human RBP4. You can calculate the concentration of Human RBP4 in the samples by comparing the OD of the samples to the standard curve.

Kit Components:

An unopened kit can be stored at 2-8℃ for six months. After test, the unused wells and reagents should be stored according to the table below.

ItemSpecificationsStorage conditions after test
Micro ELISA Plate (Dismountable)8 wells x 12 strips2-8℃, 1 month
Reference Standard2 vialsDiscard unused reconstituted standard and dilutions
Reference Standard & Sample Diluent1 vial, 20 mL2-8℃
Biotinylated Detection Ab Working Solution1 vial, 6 mL
HRP Conjugate Diluent1 vial, 14 mL
Concentrated Wash Buffer (25×)1 vial, 30 mL
Concentrated HRP Conjugate (100×)1 vial, 120 μL2-8℃ (Protect from light)
Substrate Reagent1 vial, 10 mL
Stop Solution1 vial, 10 mL2-8℃
Plate Sealer5 pieces
Product Description1 copy
Certificate of Analysis1 copy
1. Add 50μL standard or sample to the wells, immediately add 50μL Biotinylated Detection Ab working solution to each well. Incubate for 90 min at 37°C
2. Aspirate and wash the plate for 3 times
3. Add 100μL HRP conjugate working solution. Incubate for 30 min at 37°C. Aspirate and wash the plate for 5 times
4. Add 90μL Substrate Reagent. Incubate for 15 min at 37°C
5. Add 50μL Stop Solution
6. Read the plate at 450nm immediately. Calculation of the results

Retinol binding protein 4 (RBP4), previously called retinol binding protein (RBP) is a transporter protein. This protein belongs to the lipocalin family and is the specific carrier for retinol (vitamin A alcohol) in the blood [1]. 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 post translationally and results in defective delivery and supply to the epidermal cells.RBP4 seems to be correlated with cardio metabolic markers in inflammatory chronic diseases, including obesity, type 2 diabetes, metabolic syndrome, and cardiovascular diseases (CVDs) [2].

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