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Material Data Sheet
Protein Fraction II (E1, E2, E3, UCHs, 20S/26S)
Price: $270.00
Protein Fraction II (E1, E2, E3, UCHs, 20S/26S)
Price:
270
Quantity:
5 mg 
Also known as: FII
Protein fraction from a cell extract that binds to an anion exchange resin. Essentially ubiquitin-free and ATP-free, FII contains E1, most E2s, some E3s, UCHs, and the proteasome (20S and 26S).
Product Information
Stock:
10.0 mg/ml in 25 mM HEPES pH 7.6.Actual protein concentration will vary with specific lot number. Use & Storage
Use:
Ideal for demonstrating ubiquitin- and ATP-dependent degradation/conjugation of radio-labeled or immuno-detectable substrates. The inclusion of an isopeptidase inhibitor and a proteasome inhibitor are highly recommended for the efficient accumulation of ubiquitin protein conjugates. Typical assay concentrations for FII are 0.5 - 4 mg/ml.
Storage:
Store at -80°C. For best results, aliquot and freeze after first set of experiments to avoid multiple freeze/thaw cycles.
Literature
References:
Hersko A., et al. (1982) J. Biol. Chem. 258:8206-8214
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