616430
TGF-α, Human, Recombinant, E. coli
Synonym(s):
TGF-α, Human, Recombinant, E. coli, Transforming Growth Factor-α
assay
≥97% (SDS-PAGE)
form
lyophilized
manufacturer/tradename
Calbiochem®
storage condition
OK to freeze
impurities
≤100 pg/μg Endotoxin (pg/μg TGF-α)
shipped in
dry ice
storage temp.
−70°C
Quality Level
Biochem/physiol Actions
ED₅₀= 0.1-0.4 ng/ml as measured by the ability to stimulate ³H-thymidine incorporation in the mouse fibroblast cell line Balb/3T3
Disclaimer
Toxicity: Standard Handling (A)
General description
Recombinant, human transforming growth factor-α expressed in E. coli. Plays an important role in cell-cell adhesion and cell growth and differentiation. Reported to play a role in the development of hormonal insensitivity in estrogen-receptor-positive breast cancers.
Other Notes
Nicholson, R.I., et al. 1994. Cancer Res. 54, 1684.
Anklesaria, P., et al. 1990. Proc. Natl. Acad. Sci. USA87, 3289.
Massague, J. 1990. J. Biol. Chem.265, 21393.
Watanabe, S., et al. 1987. Proc. Natl. Acad. Sci. USA84, 1258.
Schreiber, A.B., et al. 1986. Science232, 1250.
Tam, J.P. 1985. Science229, 673.
Derynck, R., et al. 1984. Cell38, 327.
Anklesaria, P., et al. 1990. Proc. Natl. Acad. Sci. USA87, 3289.
Massague, J. 1990. J. Biol. Chem.265, 21393.
Watanabe, S., et al. 1987. Proc. Natl. Acad. Sci. USA84, 1258.
Schreiber, A.B., et al. 1986. Science232, 1250.
Tam, J.P. 1985. Science229, 673.
Derynck, R., et al. 1984. Cell38, 327.
Physical form
Lyophilized from 30% acetonitrile, 0.1% TFA.
Preparation Note
Following reconstitution, aliquot and freeze (-70°C) for long-term storage or refrigerate (4°C) for short-term storage. Avoid freeze/thaw cycles of solutions. Stock solutions are stable for up to 1 month at 4°C or for up to 3 months at -70°C.
Reconstitute to a concentration of ≥10 µg/ml with sterile 10 mM acetic acid containing ≥0.1% HSA or BSA.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
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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