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PAPP-A / Pappalysin-1 (Marker of Atherosclerosis and Aneuploid Fetus) Antibody [PAPPA/2717]

In Stock
Catalog Number Formulation Size Price
5069-MSM3-P0
Purified Ab with BSA and Azide at 200ug/ml
20ug
$229.00
5069-MSM3-P1
Purified Ab with BSA and Azide at 200ug/ml
100ug
$519.00
5069-MSM3-P1ABX
Purified Ab WITHOUT BSA and Azide at 1.0mg/ml
100ug
$519.00
Flat Rate Domestic: $75 | Orders outside the US - Contact Us for Order Information | Ships next business day

Applications & Dilutions

Applications Tested Dillution Protocol Note
Immunohistochemistry (IHC)
1-2ug/ml
30 min at RT. Staining of formalin-fixed tissues requires heating tissue sections in 10mM Tris with 1mM EDTA, pH 9.0, for 45 min at 95°C followed by cooling at RT for 20 minutes

Summary

Pregnancy Associated Plasma Protein (PAPP-A) is found in maternal blood that increases as pregnancy progresses, although it is not specific to pregnancy. It is principally expressed in the syncytiotrophoblast of the placenta, which forms the main source of circulating maternal PAPP-A. It cleaves insulin-like growth factor binding proteins (IGFBPs), IGFBP-4 and IGFBP-5. IGFBP-4 cleavage is enhanced significantly in the presence of bound IGF, whereas IGFBP-5 cleavage is inhibited slightly by IGF presence. It is thought to be involved in local proliferative processes such as wound healing and bone remodeling. Low plasma level of this protein has been suggested as a biochemical marker for pregnancies with aneuploid fetuses. PAPPA has also been suggested as a potential biomarker of acute myocardial infarction and Coronary Artery Disease (CAD).

Product Properties & Targets

Antibody Type
Host
Mouse
Applications
Species Reactivity
Research Areas
Isotype / Light Chain
IgG2b / Kappa
Cellular Localization
Secreted
Gene Name
Positive Control
Human placenta tissue.
Immunogen
Recombinant fragment (within aa 351-523) of human PAPP-A protein (exact sequence is proprietary)
Alternate Names
Pappalysin-1, Insulin-like growth factor-dependent IGF-binding protein 4 protease, Pregnancy-associated plasma protein A, ASBABP2; Aspecific BCL2 ARE binding protein 2; Differentially placenta 1 expressed protein; DIPLA1; IGF-dependent; IGFBP4ase; Insulin-like growth factor-dependent IGF-binding protein 4 protease (IGFBP-4 protease); PAPA; PAPP A; PAPPA1; Pappalysin-1; Pregnancy Associated Plasma Protein A (PAPP-A)

Database Links

Entrez Gene ID
SwissProt

Additional Information

Clone
PAPPA/2717
Chromosome Location
9q33.1
Mol. Weight of Antigen
181kDa

Functions

  • Metalloproteinase which specifically cleaves IGFBP-4 and IGFBP-5, resulting in release of bound IGF. Cleavage of IGFBP-4 is dramatically enhanced by the presence of IGF, whereas cleavage of IGFBP-5 is slightly inhibited by the presence of IGF.

Key References

  • Gururajan, P. (2012). Pregnancy associated plasma protein-A (PAPP-A) as an early marker for the diagnosis of acute coronary syndrome. Indian heart journal 64(2), 141-145.

Storage & Stability

Antibody with azide - store at 2 to 8°C. Antibody without azide - store at -20 to -80°C. Antibody is stable for 24 months. Non-hazardous. No MSDS required.

Limitations

This antibody is available for research use only and is not approved for use in diagnosis.

Supplied as

200ug/ml of Ab Purified from Bioreactor Concentrate by Protein A/G. Prepared in 10mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA & azide at 1.0mg/ml.

Warranty

There are no warranties, expressed or implied, which extend beyond this description. Company is not liable for any personal injury or economic loss resulting from this product.

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