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Recombinant Rat Insulin-like Growth Factor-1 (E. coli)

Cat. No. M10460
Recombinant Rat Insulin-like Growth Factor-1 (E. coli) Structure


Size Price Availability Quantity
10ug USD 81  USD90 In stock
50ug USD 157.5  USD175 In stock
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Quality Control
  • Current batch:
  • Purity >95%, Endotoxin < 0.2 EU/μg
  • COA
  • MSDS
Biological Activity

Recombinant Rat Insulin-like Growth Factor-1 belonged to the insulin gene family, it is mitogenic polypeptide growth factor that stimulates the proliferation and survival of various cell types including muscle, bone, and cartilage tissue in vitro. IGF-1 is produced primarily by the liver as an endocrine hormone as well as in target tissues in a paracrine/autocrine fashion. The production of IGF-1 is stimulated by growth hormone (GH) and can be retarded by undernutrition, growth hormone insensitivity, lack of growth hormone receptors, or failures of the downstream signaling pathway post GH receptor including SHP2 and STAT5B.

The ED50 as determined by a cell proliferation assay using FDCP-1 cells is < 10 ng/mL, corresponding to a specific activity of > 1×105 units/mg.


We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.

Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.

Chemical Information
Molecular Weight
CAS Number
Purity >95%, Endotoxin < 0.2 EU/μg
Solubility Reconstituted in ddH2O at 100 μg/mL
Storage at -20°C

Delivery of insulin-like growth factor-I to the rat brain and spinal cord along olfactory and trigeminal pathways following intranasal administration
R G Thorne, et al. Neuroscience. 2004;127(2):481-96. PMID: 15262337.

Insulin-like growth factor I stimulates growth in hypophysectomized rats
E Schoenle, et al. Nature. 1982 Mar 18;296(5854):252-3. PMID: 7038514.

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Keywords: Recombinant Rat Insulin-like Growth Factor-1 (E. coli), rRtIGF-1 supplier, Cytokines, inhibitors

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