Wed. Jan 21st, 2026

Name :
PAP Protein

Description :
Human PAP, also known as 28 kDa heat- and acid-stable phosphoprotein, PDGF-Associated protein, PDGFA-associated protein 1, PDAP1, HASPP28, is a protein which belongs to the PDAP1 family. The encoded protein in rodents has been shown to bind PDGFA with a low affinity. PDGF-Associated Protein (PAP) is a phosphoprotein that may enhance PDGFA-stimulated cell growth in fibroblasts, but inhibits the mitogenic effect of PDGFB. PDAP1 expression is induced by TNF-alpha, and cells overexpressing PDAP1 show significantly less apoptosis on exposure to TNF-alpha.

Species :
Human

Uniprotkb :
E. coli

Tag :
N-6His

Synonyms :
PAP1, PAP, PDGFA-Associated Protein 1, HASPP28, 28 kDa Heat- and Acid-Stable Phosphoprotein, PDAP1, PDGF-Associated Protein

Construction :
Recombinant Human PDGF-Associated Protein is produced by our E.coli expression system and the target gene encoding Met1-Lys181 is expressed with a 6His tag at the N-terminus.

Protein Purity :
Greater than 95% as determined by reducing SDS-PAGE. (QC verified)

Molecular Weight :
30 KDa, reducing conditions

Endotoxin :
Less than 0.1 ng/µg (1 EU/µg) as determined by LAL test.

Formulatione :
Supplied as a 0.2 μm filtered solution of 20mM Tris-HCl, 100mM NaCl, 0.1mM PMSF, 2mM DTT, pH 8.0.

Reconstitution :

Stability & Storage :
Store at ≤-70°C, stable for 6 months after receipt.Store at ≤-70°C, stable for 3 months under sterile conditions after opening. Please minimize freeze-thaw cycles.

Shipping :
The product is shipped on dry ice/polar packs.Upon receipt, store it immediately at the temperature listed below.

Research Background :
Human PAP, also known as 28 kDa heat- and acid-stable phosphoprotein, PDGF-Associated protein, PDGFA-associated protein 1, PDAP1, HASPP28, is a protein which belongs to the PDAP1 family. The encoded protein in rodents has been shown to bind PDGFA with a low affinity. PDGF-Associated Protein (PAP) is a phosphoprotein that may enhance PDGFA-stimulated cell growth in fibroblasts, but inhibits the mitogenic effect of PDGFB. PDAP1 expression is induced by TNF-alpha, and cells overexpressing PDAP1 show significantly less apoptosis on exposure to TNF-alpha.

References and Literature :

MedChemExpress (MCE) recombinant proteins include: cytokines, enzymes, growth factors, hormones, receptors, transcription factors, antibody fragments, etc. They are often essential for supporting cell growth, stimulating cell signaling pathways, triggering or inhibiting cell differentiation; and are useful tools for elucidating protein structure and function, understanding disease onset and progression, and validating pharmaceutical targets. At MedChemExpress (MCE), we strive to provide products with only the highest quality. Protein identity, purity and biological activity are assured by our robust quality control and assurance procedures.
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