BNP Precursor
Brain-type Natriuretic Peptide (BNP) is a nonglycosylated peptide that is produced predominantly by ventricular myocytes and belongs to the natriuretic peptide family. Proteolytic cleavage of the 12kD BNP precursor gives rise to N-terminal proBNP (NT-proBNP) and mature BNP. Plasma NT-proBNP is a marker for congestive heart failure, while mature BNP (aa103-134) promotes vasodilation and fluid and sodium excretion.
Applications
Suitable for use in ELISA and Immunohistochemistry. Other applications not tested.
Recommended Dilution
Direct ELISA: 0.5-1ug/ml. The detection limit is ~20ng/well for recombinant human BNP. Immunohistochemistry: 25ug/ml detects proBNP in paraffin-embedded normal human heart tissue sections. Optimal dilutions to be determined by the researcher.
Storage and Stability
Lyophilized powder may be stored at -20°C. Stable for 12 months at -20°C. Reconstitute with sterile PBS. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Reconstituted product is stable for 12 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Immunogen
E. coli-derived recombinant protein corresponding to His27-His134 from human proBNP.
Form
Supplied as a lyophilized powder from PBS, 5% trehalose. Reconstitute with 200ul sterile PBS.
Purity
Purified by Protein G affinity chromatography.
Specificity
Recognizes human proBNP. Does not react with BNP-32 (aa103-134).
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