Keratin K19, human recombinant, 250 µg

Cat. No: 62014

Available, delivery time 1-7 days

$371.00*

Key Features
  • Recombinant human keratin K19 (formerly also designated cytokeratin 19)
  • Protein standard
Product description
Quantity 250 µg
Storage Lyophilized at 2-8°C; reconstituted at -20°C (avoid freeze/thaw cycles)
Intended use Research use only
Source Human recombinant, produced in E. coli
Molecular weight 40 kDa
Isoeletric point pI 5.1
Purity > 95% (determined by SDS gelelectrophoresis)
Reconstitution
Reconstitute with 175 µl distilled water (final volume 250 µl).
Final solution: 30 mM Tris/HCI pH 8, 9.5 M urea, 2 mM DTT, 2 mM EDTA, 10 mM methylammonium chloride;
Protein concentration: 1 mg/ml
Application Protein standard in 1D and 2D SDS gelelectrophoresis, immunoassays and immunization
Synonym Cytokeratin 19
Background
Protein standard for immunoblotting, immunization and immunoassays.
Reconstitution to filaments is performed by mixing equimolar amounts of keratins of type I and type II at concentrations of approx. 0.5 mg/ml, both dissolved in 9.5 M urea buffer (see above). Protofilaments and filament complexes are obtained by dialyzing the resulting polypeptide solution stepwise to a concentration of 4 M urea and then to low salt condition (50 mM NaCl, 2 mM dithiothreitol, 10 mM Tris-HCl, pH 7.4).
For immunization purposes, the solution can be further dialyzed against PBS (phosphate buffered saline, e.g. Dulbecco's PBS).
- Hatzfeld M. and Franke W.W. (1985). J. Cell Biol. 101, 1826-1841
- Hatzfeld M. et al. (1987). J. Mol. Biol. 197, 237-255
References/Publications (1)
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