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 70-350 ng/mL.
Source
E. coli-derived human PDGF-CC protein Val235-Gly345, with an N-terminal Met and 6-His tag
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain
Endotoxin Note
<0.10 EU per 1 μg of the protein by the LAL method.
Applications/Dilutions
Dilutions
Bioactivity
Theoretical MW
13.4 kDa (monomer). Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Publications
Read Publications using 1687-CC in the following applications:
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.
Buffer
Lyophilized from a 0.2 μm filtered solution in Acetonitrile and TFA with BSA as a carrier protein.
Purity
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain
Reconstitution Instructions
Reconstitute at 100 μg/mL in sterile 4 mM HCl containing at least 0.1% human or bovine serum albumin.
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Recombinant Human PDGF-CC Protein
PDGFCC
PDGF-CC
Background
The platelet-derived growth factor (PDGF) family consists of proteins derived from four genes (PDGF-A, -B, -C, and -D) that form four disulfide-linked homodimers (PDGF-AA, -BB, -CC, and -DD) and one heterodimer (PDGF-AB) (1). These proteins regulate diverse cellular functions by binding to and inducing the homo- or hetero-dimerization of two receptor tyrosine kinases (PDGF R alpha and R beta ). Within the PDGF family, PDGF-C and PDGF-D constitute a subgroup that shares similar structural organization (2, 3). Both proteins are secreted as inactive homodimeric latent growth factors. Each monomer has two distinct protein domains: an N-terminal CUB domain; and a C-terminal PDGF/VEGF homology domain that shares 27 - 35% sequence identity with the corresponding regions of other PDGF family members. An 80 - 90 amino acid residue hinge region connects the two domains. Sequential removal of the CUB domains in the homodimeric latent growth factor by extracellular proteolytic cleavage at the hinge region is required to release the bioactive PDGF/VEGF homology domain(1). Twelve cysteine residues are found within the PDGF/VEGF homology domain of PDGF-C, including the characteristic eight invariant cysteine residues involved in inter- and intra-chains disulfide-bonds needed for the formation of the cysteine-knot structure. Bioactive PDGF-CC binds with high-affinity to PDGF R alpha but not PDGF R beta and activates PDGF R alpha homodimerization (1). PDGF-CC has also been shown to activate PDGF R alpha beta heterodimers (1). PDGF-CC is expressed in multiple embryonic and adult cell types and tissues. During embryonic development, PDGF-CC is involved in ductal morphogenesis (4). PDGF-CC is a potent angiogenic factor that stimulates vessel growth in the mouse cornea pocket assay and in the CAM assay (5). It stimulates coronary artery smooth muscle cell proliferation and may play an important role in cardiovascular development and function (6). PDGF-CC is also expressed in many tumors and tumor cell lines and has a causative role in tumorigenesis (7). Mature human and mouse PDGF-C share 93.7% amino acid sequence identity.
Li, X. and U. Eriksson (2003) Cytokine &Growth Factor Rev. 14:91.
LaRochells, W.J. et al. (2001) Nature Cell Biol. 3:517.
Li, X. et al. (2000) Nature Cell Biol. 2:302.
Aase, K. et al. (2002) Mech Dev. 110:187.
Cao, R.H. et al. (2002) FASEB J. 16:1575.
Gilbertson, D. et al. (2001) J. Biol. Chem. 276:27406.
Zwerner, J.P. and W.A. May (2001) Oncogene 20:626.
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