1x96 well plate

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All details

More gene info

Retinol binding protein 4, plasma, also known as RBP4, belongs to the lipocalin family and is the specific carrier for retinol(vitamin A alcohol) in the blood. It is protein that in humans is encoded by the RBP4 gene. RBP4 gene resides just centromeric of the cluster of CYP2C genes on 10q24. The mouse Rbp4 locus is closely linked and just proximal to the locus for phenobarbital-inducible cytochrome P450-2c(Cyp-2c) at the distal end of chromosome 19. 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. The standard used in this kit is recombinant protein, with E19-L201 aa sequence, the molecular weight is 22kda.

ELISA kit description

GENTAUR's human RBP4 ELISA test is a ready to use ELISA kit. We use a monoclonal from mouse specific for RBP4 was used as capure antibodies on the ELISA test plate. The internal standards (NSO, E19-L201) and test samples are added to the wells; a biotinylated measurement polyclonal antibodies from goat specific for RBP4 will than be washed with PBS. The colour reaction with TMB on HRP will colour the well from blue to yellow with the stop solution. The more human RBP4 in your sample the higher the ELISA signal will be compared to this elisa's standard curve.

How the elisa works

Sample the amount of 100ul/well of the standard solution at 20000pg/ml, 10000pg/ml, 5000pg/ml, 2500pg/ml, 1250pg/ml, 625pg/ml, 312pg/ml human RBP4 standard solutions into the precoated 96-well plate. Add 0.1ml of the sample diluent buffers into the control well (Zero well). Add 0.1ml of each properly diluted sample of human cell culture supernatant, serum, plasma (heparin, EDTA) or urine to each empty well. See “Sample dilutions Guideline” above for details. We recommend that each human RBP4 standard solution and each sample is measured in duplicate.


E05 478 566 350 170 or Enzyme-Linked Immunosorbent Assays,E05 478 566 350 170 or Enzyme-Linked Immunosorbent Assays,Human proteins, cDNA and human recombinants are used in human reactive ELISA kits and to produce anti-human mono and polyclonal antibodies. Modern humans (Homo sapiens, primarily ssp. Homo sapiens sapiens). Depending on the epitopes used human ELISA kits can be cross reactive to many other species. Mainly analyzed are human serum, plasma, urine, saliva, human cell culture supernatants and biological samples.

The ELISA contains

Catalog number;Description;Quantity -;96-well plate precoated with anti- human RBP4 antibodies;1 ST0000-20;Lyophilized recombinant human RBP4 standard;20ng/tube×2 AR1107;Biotinylated anti- human RBP4 antibodies;130μl(dilutions 1:100) AR1103;Avidin-Biotin-Peroxidase Complex (ABC);130μl(dilutions 1:100) AR1106-1;Sample diluent buffers;30 ml AR1106-2;antibodies diluent buffers;12ml AR1106-3;ABC diluent buffers;12ml AR1104;TMB color developing agents;10ml AR1105;TMB stop solution;10ml -;Adhesive cover;4


Plasma retinol binding protein;Plasma retinol-binding protein;Plasma retinol-binding protein(1-176);PRBP;PRO2222;RBP;RBP4;RDCCAS;RET4_HUMAN;Retinol binding protein 4;Retinol binding protein 4 interstitial;Retinol binding protein 4 plasma

ELISA's precision parameters

intra assay precisions and inter assay precisions samples;1;2;3;1;2;3 n;16;16;16;24;24;24 mean (ng/ml);2.8;5;9.43;3.4;6.2;11.5 ELISA standard deviations 0.174;0.295;0.434;0.255;0.422;0.874 CV(%);6.2;5.9;4.6;7.5;6.8;7.6

ELISA standard curve

Concentration(pg/ml) + 0 + 312 + 625 + 1250 + 2500 + 5000 + 10000 + 20000 O.D. + 0.028 + 0.133 + 0.251 + 0.533 + 0.872 + 1.233 + 1.767 + 2.154

ELISA's application

For quantitative measurement of human RBP4 in cell culture supernatant, serum, plasma heparin , EDTA and urine.

Keep at

Store at 4˚C for 6 months, at -20˚C for 12 months. Avoid multiple freeze-thaw cycles(Shipped with wet ice.)

Cross reaction

the ELISA does not cross react with any other proteins except from closely related species

Detector and capure antibodies

a monoclonal antibodies from mouse;a biotinylated polyclonal antibodies from goat


ELISA Enzyme-linked immunosorbent assays Code 90320007 SNOMED

Target of this ELISA

Natural and recombinant human RBP4

Gene name

retinol binding protein 4, plasma


Retinol-binding protein 4

ELISA kit detection limits

312pg/ml to 20000pg/ml


heparin or EDTA


NSO, E19-L201

Gene tested

Human RBP4

ELISA's sensitivity

< 10pg/ml

Gen protein identity


Minutes of TMB incubation


Entrez nr.