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Merck

407253

Sigma-Aldrich

Insulin-Like Growth Factor-I, Rat, Recombinant, E. coli

Synonym(s):

rIGF-I

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About This Item

UNSPSC Code:
12352202

Assay

≥95% (SDS-PAGE and HPLC)

Quality Level

form

lyophilized

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze

impurities

≤0.1 ng/μg Endotoxins (ng/μg IGF-I)

shipped in

wet ice

storage temp.

−20°C

General description

Full-length, recombinant, rat insulin-like growth factor I (IGFI) expressed in E. coli. The IGF-I growth factor regulates proliferation and survival signals through the AKT pathway. This growth hormone is useful in the study of cell proliferation and survival signals.

Biochem/physiol Actions

ED₅₀: <10 ng/ml as determined using a type I IGF receptor binding assay; <30 ng/ml as determined by stimulation of protein synthesis in rat L6 myeloblasts.

Preparation Note

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.
Reconstitute with H₂O to a final concentration of 0.1-1 mg/ml. Further dilute with aqueous buffers before use.

Other Notes

Clark, R.G., et al. 1997. Endocrinology138, 4316.
Tamura, K., et al. 1989. J Biol Chem. 264, 5616.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Toxicity: Standard Handling (A)

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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K Tamura et al.
The Journal of biological chemistry, 264(10), 5616-5621 (1989-04-05)
Rat insulin-like growth factor-I (IGF-I), a serum polypeptide with growth promoting activity, was isolated from rat serum by a combination of acid/ethanol extraction, affinity chromatography, and a series of reversed phase high performance liquid chromatography, cation exchange, and reversed phase.
R G Clark et al.
Endocrinology, 138(10), 4316-4323 (1997-10-10)
Besides stimulating GH release, some GH secretagogues also release ACTH and adrenal steroids. Several novel classes of potent GH secretagogues have recently been described, and we have now tested their ability to release corticosterone in conscious normal rats. All analogs

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