rev: October 8, 2001

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  ANTIGENS/Pure Proteins 

(for in vitro research use only)

RDI Divison of Fitzgerald Industries Intl  offers a wide line of  antigens for use in histochemistry, ELISA, and further manufacturing use. Please inquire for other antigens or antibodies to use with these products. Please inquire for Bulk quantities-significant discounts available!



CAT# RDI-PRO62014       $500.00/250ug

            RDI-PRO62214       $312.00/100ug

Molecular Weight      44,098 (calculated from sequence)
                                 40,000 (determined by SDS gel   electrophoresis)

Source E. Coli

Application               Protein standard in 1D and 2D SDS- gel electrophoresis


                                Antigen for immunisation

Purity                      >95% determ. by SDS-PAGE

Amount                   250ug (lyoph.,salt balanced)

Isoelectric point       pH I: 5.2

Reconstitution         (250ug) when reconstituted with 175ul H20 bidest,sol. (final vol. 250ul)will contain 30mM Tris/HCl pH 7.6, 8.0M urea, 0.1mM Na EDTA, 2mM DTT,with a protein conc. of 1mg/ml

Special Conditions:

-For immunization purposes, the solution can be further dialyzed against PBS).

-reconstituion to filaments is performed by mixing equimolar amounts of cytokeratins of Type 1 and type II at concentrations of approx 0.5mg/ml, both dissolved in 8M urea buffer (as per above formulation) Protofilaments and filament complexes are obtainined by dialyzing the resulting polypeptide stepwise to a concentration of 4M urea and then to low salt concentration (50mM NaCl, 2mM dithiothreitol, 10 mM Tris-HCL, pH 7.4).

        -see J. Cell Biol 101, 1826-1841 and J. Mol. Biol 197(237-255)

Storage            at 4 Deg.C (lyoph.) -20 DEG C (diluted) Avoid frequent freeze thaw cycles


Bader B.L. et al, Low expression of cytokeratins 8,18,and 19 in vascular smooth muscle cells of human umbilcal cord and cultured cells derived therefrom, with an analysis of the chromosomal locus containing the cytokeratin 19 gene. Eur. J.Cell. Biol. 47,300-319 (1988).

Strictly for in vitro research use only-not for use in or on humans or animals-not for diagnostics

RDI Division of Fitzgerald Industries Intl

(Research Diagnostics Inc)

34 Junction Square Drive

Concord MA 01742-3049


phone (978) 371-6446 or (800) 370-2222

fax     (978) 371-2266


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