Technical Data
I7661-14B
Insulin-Like Growth Factor II, Recombinant, Human (Human IGF-II, IGF-II, IGFII, IGFII, IGF2, IGF-2, IGF 2)
50ug
Growth Factors, Cytokines Storage: -20CShipping: Blue Ice
IGF-II (insulin-like Growth Factor-II) is a polypeptide growth factor that stimulates the proliferation of a wide range of cell types. Human IGF-II is a 7.5kD protein containing 67 amino acid residues.

Endotoxin: <0.1ng/ug

Biological Activity:
The recombinant human IGF-II is biologically active when compared to standard. The ED as determined by competitive binding against plasma-derived IGF-II to human placental membranes is <1.0ng/ml, corresponding to a specific activity of >1x10e6 units/mg.

Storage and Stability:
Lyophilized powder may be stored at -20C. Stable for 12 months at -20C. Reconstitute with acetic acid. Aliquot to avoid repeated freezing and thawing. Store at -20C. Reconstituted product is stable for 6 months at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

Molecular Weight:
7.5 kDa
Source: E. coli
Purity: ~98% (SDS-PAGE, HPLC)
Form: Supplied as a lyophilized powder with no additives. Reconstitute with 10mM acetic acid to a concentration of 0.1-1mg/ml.

Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.