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Human Pepsin (PG) ELISA Kit

Human Pepsin (PG) ELISA Kit

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Product name Human Pepsin (PG) ELISA Kit
Reactivity Human
Applications ELISA
Applications notes This Human Pepsin (PG) ELISA Kit employs a two-site sandwich ELISA to quantitate PG in samples. An antibody specific for PG has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anyPG present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for PG is added to the wells. After washing, Streptavidin conjugated Horseradish Peroxidase (HRP) is added to the wells. Following a wash to remove any unbound avidin-enzyme reagent, a substrate solution is added to the wells and color develops in proportion to the amount of PG bound in the initial step. The color development is stopped and the intensity of the color is measured.
Detection method Colorimetric
SampleType Cell culture supernatants, Other biological fluids, Plasma, Serum
Assay type Sandwich ELISA (quantitative)
Assay duration Multiple steps standard sandwich ELISA assay with a working time of 3-5 hours. It depends on the experience of the operation person.
Alternative PG

Product Properties

Kit components • Human Pepsin microplate
• Human Pepsin standard
• Human Pepsin detect antibody
• Streptavidin-HRP
• Standard diluent
• Assay buffer
• HRP substrate
• Stop solution
• Wash buffer
• Plate covers
Features & Benefits Human Pepsin (PG) ELISA Kit has high sensitivity and excellent specificity for detection of Human PG. No significant cross-reactivity or interference between Human PG and analogues was observed.
Calibration range Please inquire
Limit of detection Please inquire
Usage notes • Do not mix components from different kit lots or use reagents beyond the kit expiration date.
• Allow all reagents to warm to room temperature for at least 30 minutes before opening.
• Pre-rinse the pipet tip with reagent, use fresh pipet tips for each sample, standard and reagent to avoid contamination.
• Unused wells must be kept desiccated at 4 °C in the sealed bag provided.
• Mix Thoroughly is very important for the result. It is recommended using low frequency oscillator or slight hand shaking every 10 minutes.
• It is recommended that all samples and standards be assayed in duplicate or triplicate.
Storage instructions The unopened kit should be stored at 2 - 8°C. After opening, please store refer to protocols.
Shipping Gel pack with blue ice.
Precautions The product listed herein is for research use only and is not intended for use in human or clinical diagnosis. Suggested applications of our products are not recommendations to use our products in violation of any patent or as a license. We cannot be responsible for patent infringements or other violations that may occur with the use of this product.

Additional Information

Background Pepsin is an enzyme that whose precursor form (pepsinogen) is released by the chief cells in the stomach and that degrades food proteins into peptides. Pepsin was discovered in 1836 by Theodor Schwann who also coined this enzyme's name from the Greek word pepsis, meaning digestion (peptein: to digest). It was the first animal enzyme to be discovered, and, in 1929, it became one of the first enzymes to be crystallized, by John H. Northrop. Pepsin is a digestive protease.Pepsin functions best in acidic environments and is often found in an acidic environment, particularly those with a pH of 1.5 to 2. Pepsin denatures if the pH is more than 5.0.Pepsins should be stored at very cold temperatures (between −20°C and −80°C) to prevent autolysis (self-cleavage). Autolysis may also be prevented by storage of pepsins at pH 11 or by using modified pepsins (e.g., by reductive methylation). When the pH is adjusted back to 6.0 activity returns.
Alternative PG

Image & description

Fig.1. Human Pepsin (PG) Standard Curve.

Fig.1. Human Pepsin (PG) Standard Curve.

Fig.2. Abbkine ELISA kit is series of sandwich ELISA to quantitate specific protein in samples.

Fig.2. Abbkine ELISA kit is series of sandwich ELISA to quantitate specific protein in samples.

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