PGA5
Reactivity: Human
Host: Rabbit
Polyclonal
Alexa Fluor 555
Application Notes
ELISA: 1/10000
Restrictions
For Research Use only
Format
Liquid
Buffer
Ascitic fluid containing 0.03 % sodium azide.
Preservative
Sodium azide
Precaution of Use
This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Storage
4 °C,-20 °C
Storage Comment
Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze/thaw cycles.
Target
PGA5
(Pepsinogen 5, Group I (Pepsinogen A) (PGA5))
Alternative Name
PGA5
Background
PGA5: Pepsinogen 5, group I (pepsinogen A). Pepsinogens are the inactive precursors of pepsin, the major acid protease found in the stomach. Pepsin is one of the main proteolytic enzymes secreted by the gastric mucosa. Pepsin consists of a single polypeptide chain and arises from its precursor, pepsinogen, by removal of a 41 amino acid segment from the N-terminus. Pepsinogen is synthesized in the stomach lining, and hydrochloric acid, also produced by the gastric mucosa, is necessary to convert the inactive enzyme and to maintain the optimum acidity ( pH 1-3) for pepsin function. Pepsin is particularly effective in cleaving peptide bonds involving aromatic amino acids. Pepsin shows extremely broad specificity, although bonds involving phenylalanine and leucine are preferred, many others are also cleaved to some extent. PGA5 is a member of the subfamily A1 within the pepsin family and is the predominant endopeptidase in the gastric juice of vertebrates. PGA5 is inhibited by ovUS-1, a uterine serpin.