Reactive species
Human;Rat;Mouse;
Immunogen
The antiserum was produced against synthesized peptide derived from human Pepsin A. AA range:258-307
Specificity
Pepsin A Monoclonal Antibody detects endogenous levels of Pepsin A protein.
Constitute
Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
Source
Monoclonal, Mouse,IgG
Dilution rate
WB: 1/500 - 1/2000
Purification process
The antibody was affinity-purified from mouse antiserum by affinity-chromatography using epitope-specific immunogen.
Other name
Pepsin A; PGA3; PGA4; PGA5
Background
This gene encodes a protein precursor of the digestive enzyme pepsin, a member of the peptidase A1 family of endopeptidases. The encoded precursor is secreted by gastric chief cells and undergoes autocatalytic cleavage in acidic conditions to form the active enzyme, which functions in the digestion of dietary proteins. This gene is found in a cluster of related genes on chromosome 11, each of which encodes one of multiple pepsinogens. Pepsinogen levels in serum may serve as a biomarker for atrophic gastritis and gastric cancer. [provided by RefSeq, Jul 2015],
Function
catalytic activity:Preferential cleavage: hydrophobic, preferably aromatic, residues in P1 and P1' positions. Cleaves 1-Phe-|-Val-2, 4-Gln-|-His-5, 13-Glu-|-Ala-14, 14-Ala-|-Leu-15, 15-Leu-|-Tyr-16, 16-Tyr-|-Leu-17, 23-Gly-|-Phe-24, 24-Phe-|-Phe-25 and 25-Phe-|-Tyr-26 bonds in the B chain of insulin.,function:Shows particularly broad specificity; although bonds involving phenylalanine and leucine are preferred, many others are also cleaved to some extent.,similarity:Belongs to the peptidase A1 family.,
