| Applications: |
ELISA |
| Reactivity: |
Human |
| Note: |
FOR SCIENTIFIC EDUCATIONAL RESEARCH USE ONLY (RUO). MUST NOT BE USED IN DIAGNOSTIC OR OTHER MEDICAL APPLICATIONS. |
| Sensitivity: |
75pg/mL |
| Detection Limit: |
125-8000pg/mL |
| Short Description: |
This BNP Sandwich ELISA is an in-vitro enzyme-linked immunosorbent assay for the measurement of samples in human cell culture supernatant, serum and plasma (EDTA, citrate, heparin). |
| Storage Instruction: |
If unopened the kit may be stored at 2-8°C for up to 1 month. If the kit will not be used within 1 month, store the components separately, according to the component table in the manual. |
| Assay Time: |
3.5h |
| Detection: |
Colormetric |
| Gene Symbol: |
NPPB |
| Gene ID: |
4879 |
| Uniprot ID: |
ANFB_HUMAN |
| Specificity: |
This kit recognizes Human BNP in samples. No significant cross-reactivity or interference between Human BNP and analogues was observed. |
| Sample Type: |
Serum, plasma and other biological fluids |
| Post Translational Modifications | The precursor molecule is proteolytically cleaved by the endoproteases FURIN or CORIN at Arg-102 to produce brain natriuretic peptide 32 and NT-proBNP. This likely occurs after it has been secreted into the blood, either during circulation or in the target cells. CORIN also cleaves the precursor molecule at additional residues including Arg-99 and possibly Lys-105. In patients with heart failure, processing and degradation of natriuretic peptides B occurs but is delayed, possibly due to a decrease in enzyme level or activity of CORIN and DPP4. Brain natriuretic peptide 32: Undergoes further proteolytic cleavage by various proteases such as DPP4, MME and possibly FAP, to give rise to a variety of shorter peptides. Cleaved at Pro-104 by the prolyl endopeptidase FAP (seprase) activity (in vitro). Degraded by IDE. During IDE degradation, the resulting products initially increase the activation of NPR1 and can also stimulate NPR2 to produce cGMP before the fragments are completely degraded and inactivated by IDE (in vitro). O-glycosylated on at least seven residues. In cardiomyocytes, glycosylation at Thr-97 is essential for the stability and processing of the extracellular natriuretic peptides B. Glycosylation, especially at Thr-97, may also be important for brain natriuretic peptide 32 stability and/or extracellular distribution. Glycosylation at Thr-97 appears to inhibit FURIN- or CORIN-mediated proteolytic processing, at least in HEK293 cells. |
| Function | Brain natriuretic peptide 32: Cardiac hormone that plays a key role in mediating cardio-renal homeostasis. May also function as a paracrine antifibrotic factor in the heart. Acts by specifically binding and stimulating NPR1 to produce cGMP, which in turn activates effector proteins that drive various biological responses. Involved in regulating the extracellular fluid volume and maintaining the fluid-electrolyte balance through natriuresis, diuresis, vasorelaxation, and inhibition of renin and aldosterone secretion. Binds the clearance receptor NPR3. NT-proBNP: May affect cardio-renal homeostasis. Able to promote the production of cGMP although its potency is very low compared to brain natriuretic peptide 32. BNP(3-32): May have a role in cardio-renal homeostasis. Able to promote the production of cGMP. |
| Protein Name | Natriuretic Peptides BBrain Natriuretic Factor ProhormonePreprobnpProbnpGamma-Brain Natriuretic PeptideIso-Anp Cleaved Into - Nt-ProbnpNt-Pro-BnpNt-Probnp(1-76 - Probnp(3-108 - Brain Natriuretic Peptide 32Bnp(1-32Bnp-32Brain Natriuretic PeptideBnp - Bnp(1-30 - Bnp(1-29 - Bnp(1-28 - Bnp(2-31 - Bnp(3-32Des-Serpro-BnpProbnp(79-108 - Bnp(3-30 - Bnp(3-29 - Brain Natriuretic Peptide 29Bnp(4-32 - Bnp(4-31 - Bnp(4-30 - Bnp(4-29 - Bnp(4-27 - Bnp(5-32 - Bnp(5-31 - Bnp(5-29 |
| Cellular Localisation | Nt-Probnp: SecretedDetected In BloodProbnp(3-108): SecretedBrain Natriuretic Peptide 32: SecretedBnp(3-32): Secreted |
| Alternative ELISA Names | Natriuretic Peptides B ELISA kitBrain Natriuretic Factor Prohormone ELISA kitPreprobnp ELISA kitProbnp ELISA kitGamma-Brain Natriuretic Peptide ELISA kitIso-Anp Cleaved Into - Nt-Probnp ELISA kitNt-Pro-Bnp ELISA kitNt-Probnp(1-76 - Probnp(3-108 - Brain Natriuretic Peptide 32 ELISA kitBnp(1-32 ELISA kitBnp-32 ELISA kitBrain Natriuretic Peptide ELISA kitBnp - Bnp(1-30 - Bnp(1-29 - Bnp(1-28 - Bnp(2-31 - Bnp(3-32 ELISA kitDes-Serpro-Bnp ELISA kitProbnp(79-108 - Bnp(3-30 - Bnp(3-29 - Brain Natriuretic Peptide 29 ELISA kitBnp(4-32 - Bnp(4-31 - Bnp(4-30 - Bnp(4-29 - Bnp(4-27 - Bnp(5-32 - Bnp(5-31 - Bnp(5-29 ELISA kitNPPB ELISA kit |
| Specificity | This kit recognizes Human BNP in samples. No significant cross-reactivity or interference between Human BNP and analogues was observed. |
| Reproducibility | Both intra-CV and inter-CV are |
Information sourced from Uniprot.org
| Item | Specifications | Storage |
| Micro ELISA Plate (Dismountable) | 96T: 8 wells ×12 strips strips | -20℃, 6 months |
| Reference Standard | 96T: 2 vials 48T: 1 vial | -20℃, 6 months |
| Concentrated Biotinylated Detection Ab (100×) | 96T: 1 vial, 120 μL 60 μL | -20℃, 6 months |
| Concentrated HRP Conjugate (100×) | 96T: 1 vial, 120 μL 60 μL | -20℃ (Protect from light), 6 months |
| Reference Standard & Sample Diluent | 1 vial, 20 mL | 2-8°C, 6 months |
| Biotinylated Detection Ab Diluent | 1 vial, 14 mL | 2-8°C, 6 months |
| HRP Conjugate Diluent | 1 vial, 14 mL | 2-8°C, 6 months |
| Concentrated Wash Buffer (25×) | 1 vial, 30 mL | 2-8°C, 6 months |
| Substrate Reagent | 1 vial, 10 mL | 2-8℃ (Protect from light) |
| Stop Solution | 1 vial, 10 mL | 2-8°C |
| Plate Sealer | 5 pieces | |
| Manual | 1 copy | |
| Certificate of Analysis | 1 copy | |
| Sample Type | Range (%) | Average Recovery (%) |
| Serum(n=8) | 84-97 | 90 |
| EDTA plasma (n=8) | 90-102 | 97 |
| Cell culture media (n=8) | 85-97 | 91 |
| | Intra-assay Precision | Intra-assay Precision | Intra-assay Precision | Inter-assay Precision | Inter-assay Precision | Inter-assay Precision |
| Sample | 1.00 | 2.00 | 3.00 | 1.00 | 2.00 | 3.00 |
| n | 20.00 | 20.00 | 20.00 | 20.00 | 20.00 | 20.00 |
| Mean (pg/mL) | 365.51 | 758.43 | 3733.74 | 341.99 | 743.26 | 3875.83 |
| Standard deviation | 21.38 | 42.09 | 180.34 | 20.59 | 31.37 | 180.23 |
| CV (%) | 5.85 | 5.55 | 4.83 | 6.02 | 4.22 | 4.65 |
12 months for antibodies. 6 months for ELISA Kits. Please see website T&Cs for further guidance
