Bioactivity
(Pregnancy-associated plasma protein A(PAPPA), also known as pappalysin-1, is a secreted protease whose main substrate is insulin-like growth factor binding proteins. PAPPA's proteolytic function is activated upon collagen binding. 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 (fetuses with an abnormal number of chromosomes). Besides, Plasminogen (Plg) has been identified as an interactor of PAPPA, thus a binding ELISA assay was conducted to detect the interaction of recombinant human PAPPA and recombinant human Plg. Briefly, biotinylated PAPPA were diluted serially in PBS with 0.01% BSA (pH 7.4). Duplicate samples of 100ul were then transferred to Plg-coated microtiter wells and incubated for 1 h at 37 degree C. Wells were washed 3 times with PBST and incubated for 0.5 h at 37 degree C with SA labelled HRP. After incubation with SA labelled HRP, wells were aspirated and washed 5 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37 degree C. Finally, add 50uL stop solution to the wells and read at 450/630 nm immediately. The binding activity of PAPPA and Plg was shown in Figure 1, and the ED50 for this effect is 0.04936 ug/ml.)
Pregnancy Associated Plasma Protein A (PAPPA) Active Protein | PAPPA active protein
Active Pregnancy Associated Plasma Protein A (PAPPA)
Gene Names
PAPPA; PAPA; DIPLA1; PAPP-A; PAPPA1; ASBABP2; IGFBP-4ase
Applications
Activity Assay, Cell Culture
Purity
Greater than 95% by SDS-PAGE
Synonyms
Pregnancy Associated Plasma Protein A (PAPPA); N/A; Active Pregnancy Associated Plasma Protein A (PAPPA); PAPPA/Pregnancy Associated Plasma Protein A; PAPP-A; PAPA; ASBABP2; DIPLA1; IGFBP-4ase; PAPPA1; Pappalysin 1; Insulin-Like Growth Factor Binding Protein-4 Protease; Differentially Placenta 1 Expressed Protein; PAPPA active protein
Host
E Coli
Purity/Purification
Greater than 95% by SDS-PAGE
Form/Format
PBS, pH7.4, containing 0.01% SKL, 1mM DTT, 5% Trehalose and Proclin300.
Freeze-dried powder
Freeze-dried powder
Sequence
Leu317~Pro532
Applicable Applications for PAPPA active protein
Activity Assay, Cell Culture
Species
Human
Isoelectric Point
5.3
Tag
N-terminal His Tag
Endotoxin Level
<1.0EU per 1ug (determined by the LAL method)
Reconstitution
Reconstitute in 10mM PBS (pH7.4) to a concentration of 0.1-1.0mg/mL. Do not vortex.
Preparation and Storage
Store at 2-8 degree C for one month, -80 degree C for 12 months
Stable for 12 months if correctly stored.
Stable for 12 months if correctly stored.
Bioactivity
(Pregnancy-associated plasma protein A(PAPPA), also known as pappalysin-1, is a secreted protease whose main substrate is insulin-like growth factor binding proteins. PAPPA's proteolytic function is activated upon collagen binding. 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 (fetuses with an abnormal number of chromosomes). Besides, Plasminogen (Plg) has been identified as an interactor of PAPPA, thus a binding ELISA assay was conducted to detect the interaction of recombinant human PAPPA and recombinant human Plg. Briefly, biotinylated PAPPA were diluted serially in PBS with 0.01% BSA (pH 7.4). Duplicate samples of 100ul were then transferred to Plg-coated microtiter wells and incubated for 1 h at 37 degree C. Wells were washed 3 times with PBST and incubated for 0.5 h at 37 degree C with SA labelled HRP. After incubation with SA labelled HRP, wells were aspirated and washed 5 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37 degree C. Finally, add 50uL stop solution to the wells and read at 450/630 nm immediately. The binding activity of PAPPA and Plg was shown in Figure 1, and the ED50 for this effect is 0.04936 ug/ml.)
Bioactivity
(Pregnancy-associated plasma protein A(PAPPA), also known as pappalysin-1, is a secreted protease whose main substrate is insulin-like growth factor binding proteins. PAPPA's proteolytic function is activated upon collagen binding. 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 (fetuses with an abnormal number of chromosomes). Besides, Plasminogen (Plg) has been identified as an interactor of PAPPA, thus a binding ELISA assay was conducted to detect the interaction of recombinant human PAPPA and recombinant human Plg. Briefly, biotinylated PAPPA were diluted serially in PBS with 0.01% BSA (pH 7.4). Duplicate samples of 100ul were then transferred to Plg-coated microtiter wells and incubated for 1 h at 37 degree C. Wells were washed 3 times with PBST and incubated for 0.5 h at 37 degree C with SA labelled HRP. After incubation with SA labelled HRP, wells were aspirated and washed 5 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37 degree C. Finally, add 50uL stop solution to the wells and read at 450/630 nm immediately. The binding activity of PAPPA and Plg was shown in Figure 1, and the ED50 for this effect is 0.04936 ug/ml.)
SDS-PAGE
(SDS-PAGE)
SDS-PAGE
(SDS-PAGE)
Product Categories/Family for PAPPA active protein
NCBI and Uniprot Product Information
NCBI GI #
NCBI GeneID
Molecular Weight
180,973 Da
NCBI Official Full Name
Pappalysin-1
NCBI Official Synonym Full Names
pregnancy-associated plasma protein A, pappalysin 1
NCBI Official Symbol
PAPPA
NCBI Official Synonym Symbols
PAPA; DIPLA1; PAPP-A; PAPPA1; ASBABP2; IGFBP-4ase
NCBI Protein Information
pappalysin-1; IGF-dependent IGFBP-4 protease; aspecific BCL2 ARE-binding protein 2; pregnacy-associated plasma protein A; differentially placenta 1 expressed protein; insulin-like growth factor-dependent IGF binding protein-4 protease; insulin-like growth
UniProt Protein Name
Pappalysin-1
UniProt Gene Name
PAPPA
UniProt Synonym Gene Names
IGF-dependent IGFBP-4 protease; IGFBP-4ase; PAPP-A
UniProt Entry Name
PAPP1_HUMAN
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Product Notes
The PAPPA pappa (Catalog #AAA152234) is an Active Protein produced from E Coli and is intended for research purposes only. The product is available for immediate purchase. AAA Biotech's Pregnancy Associated Plasma Protein A (PAPPA) can be used in a range of immunoassay formats including, but not limited to, Activity Assay, Cell Culture. Researchers should empirically determine the suitability of the PAPPA pappa for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process. The amino acid sequence is listed below: Leu317~Pro 532. It is sometimes possible for the material contained within the vial of "Pregnancy Associated Plasma Protein A (PAPPA), Active Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.Disclaimer
Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.Item has been added to Shopping Cart
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