Reactivity | HuSpecies Glossary |
Applications | Bioactivity |
Format | Carrier-Free |
Additional Information | Biotinylated |
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Details of Functionality | Measured by its binding ability in a functional ELISA. When Recombinant Human PDGF-BB
(Catalog #
220-BB)
is coated at 1 μg/mL (100 μL/well), Biotinylated Recombinant Human PDGF
R beta Fc Chimera Avi-tag (Catalog # AVI10652) binds with an ED50 of 12-120 ng/mL. Measured by its ability to inhibit the biological activity of PDGF-BB using NR6R‑3T3 mouse fibroblast cells. Raines, E.W. et al. (1985) Methods Enzymol. 109:749. The ED50 for this effect is 1-3 µg/mL. |
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Source | Chinese Hamster Ovary cell line, CHO-derived human PDGF R beta protein
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Accession # | |||||||||
N-terminal Sequence | Leu33 |
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Structure / Form | Disulfide-linked homodimer, biotinylated via Avi-tag |
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Protein/Peptide Type | Recombinant Proteins |
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Purity | >95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining. |
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Endotoxin Note | <0.10 EU per 1 μg of the protein by the LAL method. |
Dilutions |
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Theoretical MW | 85 kDa. 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. |
SDS-PAGE | 107-119 kDa, under reducing conditions |
Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
|
Buffer | Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. |
Purity | >95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining. |
Reconstitution Instructions | Reconstitute at 500 μg/mL in PBS. |
PDGF is a major serum mitogen that can exist as a homo or hetero-dimeric protein consisting of disulfide-linked PDGF-A and PDGF-B chains. The PDGF-AA, PDGF-BB and PDGF-AB isoforms have been shown to bind to two distinct cell surface PDGF receptors with different affinities. Where as PDGF R alpha binds all three PDGF isoforms with high affinity, PDGF R beta binds PDGF-BB only with high-affinity. Both PDGF R alpha and PDGF R beta are members of the class III subfamily of receptor tyrosine kinases (RTK) that also includes the receptors for M-CSF, SCF and Flt3 ligand. All class III RTKs are characterized by the presence of five immunoglobulin-like domains in their extracellular region and a split kinase domain in their intracellular region. PDGF binding induces receptor homo-and hetero-dimerization and signal transduction. The expression of the alpha and beta receptors is independently regulated in various cell types. Recombinant soluble PDGF R beta binds PDGF with high affinity and is potent PDGF antagonist. Our Avi-tag Biotinylated Human PDGF R beta features biotinylation at a single site contained within the Avi-tag, a unique 15 amino acid peptide. Protein orientation will be uniform when bound to streptavidin-coated surface due to the precise control of biotinylation and the rest of the protein is unchanged so there is no interference in the protein's bioactivity
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