Human NT-ProANP Quantikine ELISA Kit

  • Assay Length
    4.5 hours
  • Sample Type & Volume Required Per Well
    Cell Culture Supernates (50 uL), Serum (25 uL), EDTA Plasma (25 uL), Heparin Plasma (25 uL)
  • Sensitivity
    0.146 ng/mL
  • Assay Range
    0.3 - 20 ng/mL (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma)
  • Specificity
    Natural and recombinant human NT-ProANP.
  • Cross-reactivity
    < 0.5% cross-reactivity observed with available related molecules.< 50% cross-species reactivity observed with species tested.
  • Interference
    No significant interference observed with available related molecules.
Product Summary
The Quantikine® Human NT-ProANP Immunoassay is a 4.5 hour solid-phase ELISA designed to measure human NT-ProANP in cell culture supernates, serum, and plasma. It contains E. coli-expressed recombinant human NT-ProANP and has been shown to accurately quantitate the recombinant factor. Results obtained using natural human NT-ProANP showed linear curves that were parallel to the standard curves obtained using the Quantikine® kit standards. These results indicate that this kit can be used to determine relative mass values for naturally occurring human NT-ProANP.

Intra-Assay Precision (Precision within an assay) Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision.
Inter-Assay Precision (Precision between assays) Three samples of known concentration were tested in twenty separate assays to assess inter-assay precision. Assays were performed by at least three technicians using two lots of components.
Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma
Intra-Assay Precision Inter-Assay Precision
Standard Deviation0.0690.2240.5830.1290.4260.842


The recovery of human NT-ProANP spiked to levels throughout the range of the assay was evaluated.

Sample Type Average % Recovery Range %
Cell Culture Media (n=4) 104 87-114
EDTA Plasma (n=4) 102 84-120
Heparin Plasma (n=4) 98 84-111
Serum (n=4) 108 95-122
To assess the linearity of the assay, samples containing and/or spiked with high concentrations of human NT-ProANP were diluted with calibrator diluent to produce samples with values within the dynamic range of the assay.
Human NT-ProANP Quantikine ELISA Kit
Preparation and Storage
  • Storage
    Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Background: Atrial Natriuretic Peptide/ANP
Atrial Natriuretic peptide (ANP) is synthesized as a 151 aa preproprotein. The proprotein contains cardiodilatin (aa 26 - 92) and atrial natriuretic factor (ANF; aa 124 - 151) which become active after processing by the serine protease corin. ANP is primarily synthesized in the heart and is secreted in response to atrial distention. ANF circulates in the plasma, eliciting natriuretic, diuretic, vasorelaxant and antimitogenic effects directed toward reduction of body fluid and blood pressure regulation. ANF acts through the cGMP-coupled NP receptor A. Human ANP and ANF share 84% and 96% aa identity with mouse ANP and ANF, respectively.
    • Entrez Gene IDs
      4878 (Human); 230899 (Mouse); 24602 (Rat);
    • Alternate Names
      ANF; ANP; ANPatriopeptin; ATFB6; atrial natriuretic factor; Atrial natriuretic peptide; Cardionatrin; CDD-ANF; natriuretic peptide A; natriuretic peptide precursor A; NPPA; PND; PNDcardionatrin; prepronatriodilatin;
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