Name : IGF-BP-3, Human
Product Concentration :
Background :
IGF-BP3 is a 30 kDa cysteine-rich secreted protein. It is the major IGF binding protein present in the plasma of human and animals and it is also found in α-granules of platelets. In addition to its ability to modulate the activity of IGF-I and IGF-II, IGF-BP3 exerts inhibitory effects on follicle stimulating hormone (FSH) activity. Decreased plasma levels of IGF-BP3 often results in dwarfism, whereas elevated levels of IGF-BP3 may lead to acromegaly. The expression of IGF-BP3 in fibroblasts is stimulated by mitogenic growth factors such as Bombesin, Vasopressin, PDGF, and EGF.
Biological Activity :
Fully biologically active when compared to standard. The ED50 as determined by inhibiting IGF-II induced proliferation of serum free human MCF-7 cells is less than 200.0 ng/ml, corresponding to a specific activity of > 5.0 × 103 IU/mg in the presence of 15.0 ng/ml of rHuIGF-II.
expression system :
E. coli
Tag :
IGF-BP-3 (Gly28-Lys291)Accession # P17936
Protein Accession No. :
P17936
Synonyms :
IGFBP3; BP-53; IBP3; insulin like growth factor binding protein 3
Molecular Weight :
Purity :
> 98% as analyzed by SDS-PAGE> 98% as analyzed by HPLC
Product Concentration :
Lyophilized from a 0.2 μm filtered solution in PBS, pH 7.4.
Storage and Stability :
Upon receiving, this product remains stable for up to 6 months at -70°C or -20°C. Upon reconstitution, the product should be stable for up to 1 week at 4°C or up to 3 months at -20°C. Avoid repeated freeze-thaw cycles.
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