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Invitrogen
Human PAPP-A ELISA Kit
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Product Specifications
Analytical sensitivity
0.6 ng/mL
Assay range
0.686-500 ng/mL
Sample type/volume
Plasma
50 µL
Serum
50 µL
Supernatant
100 µL
Hands-on time
1 hr 20 min
Time-to-result
4 hr 45 min
Homogenous (no wash)
No
Interassay CV
<12%
Intraassay CV
<10%
Instrument
Absorbance Microplate Reader
Product size
96 Tests
Contents
Pre-coated 96 well plate
Standard
Assay Diluent concentrate
Biotinylated Detection Antibody
SAV-HRP
Wash Buffer
Chromogen
Stop Solution
Adhesive Plate Covers
Standard
Assay Diluent concentrate
Biotinylated Detection Antibody
SAV-HRP
Wash Buffer
Chromogen
Stop Solution
Adhesive Plate Covers
Shipping conditions
Wet ice
Storage
Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C
Protein name
PAPPA
Protein family
Other Proteins
Species (tested)
Human
Assay kit format
Sandwich ELISA Kit
Detector antibody conjugate
Biotin
Label or dye
HRP
About This Kit
The Human PAPP-A ELISA quantitates Hu PAPP-A in human serum, plasma, or cell culture medium. The assay will exclusively recognize both natural and recombinant Hu PAPP-A.
Principle of the method
The Human PAPP-A solid-phase sandwich ELISA (enzyme-linked immunosorbent assay) is designed to measure the amount of the target bound between a matched antibody pair. A target-specific antibody has been pre-coated in the wells of the supplied microplate. Samples, standards, or controls are then added into these wells and bind to the immobilized (capture) antibody. The sandwich is formed by the addition of the second (detector) antibody, a substrate solution is added that reacts with the enzyme-antibody-target complex to produce measurable signal. The intensity of this signal is directly proportional to the concentration of target present in the original specimen.
Rigorous validation
Each manufactured lot of this ELISA kit is quality tested for criteria such as sensitivity, specificity, precision, and lot-to-lot consistency. See manual for more information on validation.
Target information
Pregnancy-associated plasma protein-A (PAPP-A, Insulin-like growth factor binding protein-4 protease, PAPP-A-proMBP complex) is a large heterottetrameric glycoprotein of approximately 500 kDa, which was first discovered in serum from pregnant women. The hetreotetramer consists of two PAPP-A subunits and two proMBP subunits. Low maternal serum levels of PAPP-A in first trimester biochemical screening is used as a marker of Down's syndrome (trisomy 21).
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Gene aliases : ASBABP2, DIPLA1, IGFBP-4ase, PAPA, PAPP-A, PAPPA, PAPPA1
Gene ID : (Human) 5069
Gene symbol : PAPPA
Protein Aliases : aspecific BCL2 ARE-binding protein 2, differentially placenta 1 expressed protein, IGF-dependent IGFBP-4 protease, IGFBP-4 ase, PAPP A, Pappalysin, RP11-45A16.1, insulin-like growth factor-dependent IGF binding protein-4 protease, Insulin-like growth factor-dependent IGF-binding protein 4 protease, PAPP-A, Pappalysin-1, pregnacy-associated plasma protein A, Pregnancy-associated plasma protein A, pregnancy-associated plasma protein A, pappalysin 1
UniProt ID (Human) Q08371
Performance Guarantee
If an Invitrogen™ immunoassay doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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