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Manufactured by BioVendor

IGF-BP3 Human E. coli

  • Regulatory status:RUO
  • Type:Recombinant protein
  • Source:E. coli
  • Other names:Insulin-like Growth Factor-Binding Protein 3, Growth-hormone-dependant binding protein
  • Species:Human
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Cat. No. Size Price

RBG10190005 5 µg
RBG10190025 25 µg
RBG10190100 100 μg
PubMed Product Details
Technical Data


Recombinant protein


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. Recombinant Human IGF-BP3 is a 28.8 kDa protein consisting of 264 amino acid residues.

Amino Acid Sequence



E. coli



Biological Activity

The ED 50 was determined by its ability to inhibit IGF-II induced proliferation of MCF-7. The expected ED 50 for this effect is ≤ 0.2 µg/ml in presence of 15 ng/ml of human IGF-II.


Endotoxin level is <0.1 ng/μg of protein (<1EU/μg).


Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1–1.0 mg/ml. Do not vortex. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at –20°C to –80°C.




Research topic

Apoptosis, Diabetology - Other Relevant Products, Oncology

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