Speciality Immunoassays and Reagents

Beta Endorphin ELISA

Beta Endorphin ELISA				Catalog # EDRF.96
Format	Competitive assay				View product insert
Size/Volume	96 well
Species	human				Request Quote
Sample Type	serum, plasma
Sample Preparation	plasma extraction
Sample Size	50 uL
Standard Curve Range	0.01 - 100 ng/mL
Sensitivity	1 ng/mL
Assay Length	4 hrs

 

OVERVIEW

This Enzyme Immunoassay kit is designed to detect a specific peptide and its related peptides based on the principle of "competitive" enzyme immunoassay. This kit is a specific quantitative assay for the determination of beta-endorphin in human and rat plasma serum samples.

PRINCIPLE OF ENZYME IMMUNOASSAY WITH THIS KIT

The immunoplate in this kit is pre-coated with secondary antibody and the nonspecific binding sites are blocked. The secondary antibody can bind to the Fc fragment of the primary antibody (peptide antibody) whose Fab fragment will be competitively bound by both biotinylated peptide and peptide standard or targeted peptide in sample. The biotinylated peptide is able to interact with streptavidin-horseradish peroxidase (SA-HRP) which catalyzes the substrate solution composed of 3,3',5,5'-tetramethylbenzidine (TMB) and hydrogen peroxide to produce a blue colored solution. The enzyme-substrate reaction is stopped by hydrogen chloride (HCl) and the solution turns to yellow. The intensity of the yellow is directly proportional to the amount of biotinylated peptide-SA-HRP complex but inversely proportional to the amount of the peptide in standard solutions or samples. This is due to the competitive binding of the biotinylated peptide and the peptide in standard solutions or samples to the peptide antibody (primary antibody). A standard curve of a peptide with known concentration can be established accordingly. The peptide with unknown concentration in samples can be determined by extrapolation to this standard curve.

Tyr-Gly-Gly-Phe-Met-Thr-Ser-Glu-Lys-Ser-Gln-Thr-Pro-

Leu-Val-Thr-Leu-Phe-Lys-Asn-Ala-Ile-Ile-Lys-Asn-Ala-

Tyr-Lys-Lys-Gly-Glu

Specificity (Cross-reactivity):

Leu-Enkephalin: 0

MET-Enkephalin: 0

beta_Endorphin (Human): 100

alpha Endorphin: 0

Gamma Endorphin: 0

 

Product inserts are for information use only.

MDB ENDORPHINE ELISA MSDS