Keratin K18, human recombinant, 100 µg

Cat. No: 62217

Available, delivery time 1-7 days

$293.00*

Key Features
  • Recombinant human keratin K18 (formerly also designated cytokeratin 18)
  • Protein standard
Product description
Quantity 100 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 45 kDa
Isoeletric point pI 5.7
Purity > 95% (determined by SDS gelelectrophoresis)
Reconstitution Reconstitute with 70 µl distilled water (final volume 100 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 18
Background
Human recombinant Keratin K18 for use in immunoblotting and ELISA.
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
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