Recombinant Rat PDGF-AB Protein, CF

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R&D Systems Recombinant Proteins and Enzymes
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Recombinant Rat PDGF-AB Protein, CF Summary

Product Specifications

>97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Measured in a cell proliferation assay using NR6R‑3T3 mouse fibroblast cells. Raines, E.W. et al. (1985) Methods Enzymol. 109:749. The ED50 for this effect is 1-3 ng/mL.
E. coli-derived rat PDGF-AB protein
(Ser87 - Arg196)
Accession # AAB59693.1
(Ser74 - Thr182)
Accession # Q05028.1
N-terminus C-terminus
N-terminal Sequence
Ser87 (A chain) & Ser74 (B chain)
Structure / Form
Disulfide-linked heterodimer
Predicted Molecular Mass
24.8 kDa

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Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.


Formulation Lyophilized from a 0.2 μm filtered solution in Acetonitrile and Na2HPO4.
Reconstitution Reconstitute at 100 μg/mL in sterile 4 mM HCl.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
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Background: PDGF-AB

Platelet-derived growth factor (PDGF) family of mesenchymal mitogenic factors consists of four homodimers (PDGF-AA, PDGF-BB, PDGF-CC and PDGF-DD) and one heterodimer (PDGF-AB). These proteins are expressed by a number of different cells and tissues including endothelial cells, epithelial cells, hematopoietic cells, connective tissue, nervous tissue, brain, muscle, kidney and liver. PDGF expression is highly regulated with PDGF levels increasing following injury and/or disease. An analysis of PDGF purified from human platelets suggest that approximately 70% of sera-derived PDGF is PDGF-AB (1).

PDGF isoforms exert their cellular effect by binding to the structurally similar receptor tyrosine kinases PDGF receptor-alpha and PDGF receptor-beta. PDGF-AB binding induces receptor dimerization resulting in alpha alpha receptor homodimers and alpha beta receptor heterodimers. Binding of PDGF receptors has been reported to result in stimulation of mitogenicity and chemotaxis of fibroblasts, stimulation of granule release by neutrophils and monocytes, facilitation of steroid synthesis by Leydig cells, stimulation of neutrophil phagocytosis, stimulation of collagen, fibronectin, proteoglycan, and hyaluronic acid synthesis, modulation of thrombospondin expression and secretion, stimulation of collagenase activity and secretion, induction of contraction of rat aorta strips in vitro, and transient induction of T cell IL-2 secretion accompanied by a down-regulation of IL-4 and IFN-gamma production (2).

  1. Raines, E.W. (2001) in Cytokine Reference, J.J. Oppenheim and M. Feldmann, chief editors, Academic Press, San Diego, California, pp. 755.
  2. Heldin, C-H, Eriksson, U. and Ostman, A. (2002) Arch. Biochem. Biophysic. 398:284.
Long Name
Platelet-derived Growth Factor AB
Alternate Names

Citations for Recombinant Rat PDGF-AB Protein, CF

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

2 Citations: Showing 1 - 2
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  1. Genetic analyses in mouse fibroblast and melanoma cells demonstrate novel roles for PDGF-AB ligand and PDGF receptor alpha
    Authors: JL Kadrmas, MC Beckerle, M Yoshigi
    Sci Rep, 2020;10(1):19303.
    Species: Rat
    Sample Types: Whole Cells
    Applications: Bioassay
  2. Differentiation of adipose-derived stem cells into Schwann cell-like cells through intermittent induction: potential advantage of cellular transient memory function
    Authors: X Sun, Y Zhu, HY Yin, ZY Guo, F Xu, B Xiao, WL Jiang, WM Guo, HY Meng, SB Lu, Y Wang, J Peng
    Stem Cell Res Ther, 2018;9(1):133.
    Species: Rat
    Sample Types: Whole Cells
    Applications: Bioassay


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