Name
PAPP-A Native
Cat. No.
MAG-4262
Tag/Conjugates
His
Source
Human Placenta
Shipped
At Room Temperature
Description
PAPP-A Human native purified from human placenta having a total molecular mass of ~200 kDa. The PAPP-A is purified by proprietary chromatographic techniques.
Introduction
PAPPA is a large zinc binding protein, which plays a role as a metalloprotease and specifically cleaves IGFBP-4 and IGFBP-5, resulting in release of bound IGF. PAPP-A regulates IGF bioactivity in various biological systems, including the human ovary and cardiovascular systems. PAPP A levels were higher in patients with unstable angina or acute myocardial infarction. PAPPA is also involved in local proliferative processes such as wound healing and bone remodeling. Moreover, PAPP-A is produced in high concentrations during pregnancy and is released into the maternal circulation. In placenta, PAPP A is expressed in X cells in septa and anchoring villi, and in syncytiotrophoblasts in the chorionic villi.
Purification Method
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Physical Appearance
Brownish lyophilized (freeze-dried) powder.
Formulation
PAPP-A protein was lyophilized from 10mM Tris-HCl pH-7, 0.15M NaCl, 0.1% NGME & 0.09% NaN3.
Stability
Lyophilized PAPP-A although stable at room temperature for 3 weeks, should be stored desiccated below -18C. Upon reconstitution PAPP-A should be stored at 4C between 2-7 days and for future use below -18C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
Purity
Greater than 95.0% as determined by SDS-PAGE.
Biological Activity
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Safety Data Sheet
SDS
Usage
Mabioway's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
Synonyms
Pappalysin-1, Pregnancy-associated plasma protein A, PAPP-A, IGF-dependent IGFBP-4 protease, IGFBP-4ase, PAPPA, PAPA, DIPLA1, PAPPA1, ASBABP2.
Amino acid sequence
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Background
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