Detection of Human Pro‑BNP by Western Blot. Western blot shows lysates of human plasma. PVDF Membrane was probed with 1 µg/mL of Goat Anti-Human Pro‑BNP Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3604) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF019). A specific band was detected for Pro‑BNP at approximately 27 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
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.
Human BNP (brain natriuretic peptide) is a 3.5 kDa, secreted, nonglycosylated peptide that belongs to the natriuretic peptide family. It is the product of ventricular myocytes and bone marrow endothelial cells. BNP is synthesized as a 12 kDa, 108 amino acid (aa) prohormone with a 76 aa prosegment and a 32 aa mature (BNP) region. Both forms circulate, with the prohormone showing O-linked glycosylation that generates a 25-27 kDa glycoprotein. Glycosylation is suggested to stabilize the molecule. The proform also tends to noncovalently trimerize. In blood, 1-32 BNP is proteolytically processed into 3-32 BNP, with loss of Ser-Pro at the N-terminus. Human Pro-BNP is 29% and 50% aa identical to mouse and pig Pro-BNP, respectively.
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