Cell Signaling Technology

Product Pathways - Antibody Sampler Kits

Cytokeratin Antibody Sampler Kit #9384

Kit Includes Quantity Applications Reactivity MW (kDa) Isotype
Keratin 7 Antibody #3473 40 µl W H (Mk) 52 Rabbit
Keratin 17 (D73C7) XP® Rabbit mAb #4543 40 µl W IF-IC F H M R Mk (Dg) 48 Rabbit IgG
Keratin 8/18 (C51) Mouse mAb #4546 40 µl W IHC-P F H Mk 46 Keratin 18. 55 Keratin 8. Mouse IgG1
Keratin 18 (DC10) Mouse mAb #4548 40 µl W IHC-P IF-IC F H 46 Mouse IgG1
Keratin 19 (BA17) Mouse mAb #4558 40 µl W IHC-P H 40 Mouse IgG1
Pan-Keratin (C11) Mouse mAb #4545 40 µl W IHC-P IF-IC IF-P F H R Mk 46-62 Mouse IgG1
Anti-mouse IgG, HRP-linked Antibody #7076 100 µl Horse
Anti-rabbit IgG, HRP-linked Antibody #7074 100 µl Goat

Applications Key:  W=Western Blotting  IHC-P=Immunohistochemistry (Paraffin)  IF-IC=Immunofluorescence (Immunocytochemistry)  IF-P=Immunofluorescence (Paraffin)  F=Flow Cytometry
Reactivity Key:  H=Human  M=Mouse  R=Rat  Mk=Monkey  Dg=Dog
Species enclosed in parentheses are predicted to react based on 100% sequence homology.

Specificity / Sensitivity

The pan-keratin (C11) mouse mAb detects endogenous levels of total keratins 4, 5, 6, 8, 10, 13 and 18. The antibody does not cross-react with other keratins. Each of the remaining antibodies included in this kit detect endogenous levels of the specified keratin protein and do not cross-react with other keratin proteins.

Western Blotting

Western Blotting

Western blot analyses of extracts of various cell lines using Keratin 7 Antibody #3473. As expected, keratin 7 is absent in MCF-7 cells.

Western Blotting

Western Blotting

Western blot analysis of extracts from A-431, HeLa, and A549 cells using Keratin 17 (D73C7) XP® Rabbit mAb #4543. As expected, keratin 17 is absent in A549 cells.

Western Blotting

Western Blotting

Western blot analysis of extracts from various cell lines using Pan-Keratin (C11) Mouse mAb #4545.


Western Blotting

Western Blotting

Western blot analysis of extracts from various cell lines using Keratin 8/18 (C51) Mouse mAb #4546.

Western Blotting

Western Blotting

Western blot analysis of extracts from HeLa and A-431 cells using Keratin 18 (DC10) Mouse mAb #4548.

Western Blotting

Western Blotting

Western blot analysis of extracts from various cell types using Keratin 19 (BA17) Mouse mAb #4558. As expected, the protein is absent in A-431 and HeLa cells.


Description

The Cytokeratin Antibody Sampler Kit provides an economical means to evaluate the presence and status of selected keratin proteins. The kit provides enough primary and secondary antibodies to perform four Western blot experiments per primary antibody.

Source / Purification

Pan-Keratin Mouse mAb (C11) is produced by immunizing animals with a cytoskeleton preparation from A431 cells. Keratin 8/18 (C51) Mouse mAb is produced by immunizing animals with a cytoskeleton preparation from HeLa cells. Keratin 18 (DC10) Mouse mAb is produced by immunizing animals with human PMC-42 breast carcinoma cells. Keratin 19 (BA17) Mouse mAb is produced by immunizing animals with detergent-insoluble extract of human mammary epithelial organoids. Keratin 7 Antibody is generated by immunizing animals with a synthetic peptide corresponding to amino acids at the amino terminus of human keratin 7. Keratin 17 (D73C7) XP® Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to amino acids near the carboxy terminus of human keratin 17. Polyclonal antibodies are purified by Protein A and peptide affinity chromatography.

Background

Keratins (cytokeratins) are intermediate filament proteins that are mainly expressed in epithelial cells. Keratin heterodimers composed of an acidic keratin (or type I keratin, keratins 9 to 23) and a basic keratin (or type II keratin, keratins 1 to 8) assemble to form filaments (1,2). Keratin isoforms demonstrate tissue- and differentiation-specific profiles that make them useful as biomarkers (1). Mutations in keratin genes are associated with skin disorders, liver and pancreatic diseases, and inflammatory intestinal diseases (3-6).

  1. Moll, R. et al. (1982) Cell 31, 11-24.
  2. Chang, L. and Goldman, R.D. (2004) Nat Rev Mol Cell Biol 5, 601-13.
  3. Ramaekers, F.C. and Bosman, F.T. (2004) J Pathol 204, 351-4.
  4. Lane, E.B. and McLean, W.H. (2004) J Pathol 204, 355-66.
  5. Zatloukal, K. et al. (2004) J Pathol 204, 367-76.
  6. Owens, D.W. and Lane, E.B. (2004) J Pathol 204, 377-85.

Application References

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This product is intended for research purposes only. The product is not intended to be used for therapeutic or diagnostic purposes in humans or animals.

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