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407245

Sigma-Aldrich

Insulin-Like Growth Factor-II, Human, Recombinant, E. coli

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Synonym(s):
Insulin-Like Growth Factor-II, Human, Recombinant, E. coli, rhIGF-II
CAS Number:

Assay

≥97% (SDS-PAGE)

Quality Level

form

lyophilized

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze

impurities

<1 EU/μg Endotoxin (EU/μg IGF-II)

shipped in

ambient

storage temp.

−20°C

General description

Recombinant, human insulin-like growth factor-II expressed in E. coli. A growth-promoting peptide that is structurally related to insulin. IGF-II shares about 76% sequence identity with IGF-I and ~50% with pro-insulin. Its actions are similar to IGF-I (Cat. No. 407240). IGF-II is a nonglycosylated, single chain peptide of 67 amino acids. Plays an important role in fetal development. Stimulates muscle and bone cell proliferation and differentiation.
Recombinant, human insulin-like growth factor-II expressed in E. coli. Its actions are similar to IGF-1 (Cat. No. 407240). Plays an important role in fetal development. Stimulates muscle and bone cell proliferation and differentiation.

Biochem/physiol Actions

ED₅₀ = 5-10 ng/ml

Warning

Toxicity: Standard Handling (A)

Physical form

Lyophilized from sterile-filtered acetic acid.

Reconstitution

Following reconstitution, aliquot and freeze (-70°C). Stock solutions are stable for up to 3 months at -70°C.
Reconstitute to a concentration of ≥10 µg/ml with sterile PBS containing ≥0.1% HSA or BSA. Avoid using buffers near the isoelectric point (6.5).

Other Notes

Feldser, D., et al. 1999. Cancer Res.59, 3915.
Hill, P.A., et al. 1995. Endocrinology136, 124.
Nielson, F.C., et al. 1995. Nature 377, 358.
LeRoith, D., and Roberts, C.R., Jr. 1993. Ann. N.Y. Acad. Sci.692, 1.
Lowe, W.L. 1991. In Insulin-Like Growth Factors: Molecular and Cellular Aspects (LeRoith, D., Ed.) CRC Press Inc., Boca Raton p. 49.
Rotwein, P. 1991. Growth Factors5, 3.

Legal Information

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 1


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