Human Pepsinogen A5/PGA5 Antibody

Catalog #: AF8457 Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
AF8457-100
AF8457-SP

Detection of Human Pepsinogen A5/PGA5 by Western Blot.

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Summary Data Examples Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Human Pepsinogen A5/PGA5 Antibody Summary

Species Reactivity

Human

Specificity

Detects human Pepsinogen A5/PGA5 in direct ELISAs and Western blots.

Source

Polyclonal Sheep IgG

Purification

Antigen Affinity-purified

Immunogen

Mouse myeloma cell line NS0-derived recombinant human Pepsinogen A5/PGA5
Met1-Ala388
Accession # P0DJD7

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Label

Unconjugated

Applications

Recommended Concentration

Sample

Western Blot

0.1 µg/mL

See below

Simple Western

20 µg/mL

See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot

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Detection of Human Pepsinogen A5/PGA5 by Western Blot. Western blot shows lysates of human stomach tissue. PVDF membrane was probed with 0.1 µg/mL of Sheep Anti-Human Pepsinogen A5/PGA5 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF8457) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for Pepsinogen A5/PGA5 at approximately 45 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Simple Western

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Detection of Human Pepsinogen A5/PGA5 by Simple Western^TM. Simple Western lane view shows lysates of human stomach tissue and human stomach cancer tissue, loaded at 0.2 mg/mL. A specific band was detected for Pepsinogen A5/PGA5 at approximately 48 kDa (as indicated) using 20 µg/mL of Sheep Anti-Human Pepsinogen A5/PGA5 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF8457) followed by 1:50 dilution of HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Pepsinogen A5/PGA5

Pepsins are aspartic proteases that are synthesized in the gastric mucosa and secreted into the stomach. They are released as zymogens called pepsinogens and then converted to active pepsins by the acidic pH of gastric juices (1). PGA-3, PGA-4, and PGA-5 are isozymogens of human Pepsinogen A, which differ in amino acid sequence by 2-4 residues (2). This recombinant human Pepsinogen A corresponds to PGA-4. Pepsins have optimal activity under conditions of acidic pH and are inhibited by pepstatin. Pepsin A has broad substrate specificity, but preferentially cleaves peptide bonds involving aromatic and aliphatic amino acids.

References