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Alexa Fluor® 647 Mouse Anti-Human Cytokeratin CAM5.2 RUO

Alexa Fluor® 647 Mouse Anti-Human Cytokeratin 

Clone  CAM5.2   (RUO)

  • Brand BD Pharmingen™
  • Alternative Name Cytokeratin-7/-8; CK-7/CK-8;
  • Vol. Per Test 5 µl
  • Isotype Mouse BALB/c IgG2a
  • Reactivity Human (QC Testing) 
  • Application Intracellular staining (flow cytometry) (Routinely Tested) 
  • Immunogen Human HT29 colorectal carcinoma cell line
  • Storage Buffer Aqueous buffered solution containing BSA and ≤0.09% sodium azide.
  • Regulatory Status RUO
Product Details Recommended Assay References

Description

The CAM5.2 monoclonal antibody specifically recognizes cytokeratin having a primary reactivity with human keratin proteins that correspond to Moll's peptides #7 (48 kDa) and #8 (52 kDa). Cytokeratin 7 and 8 are type II cytoskeletal keratins. These cytoskeletal proteins provide structural integrity for epithelial cells and may serve other functions as well. They are expressed in epithelia cells that comprise normal human tissues. Although these cytokeratins are not normally expressed in stratified squamous epithelium, they may be expressed in some squamous cell carcinomas. The CAM 5.2 antibody stains most epithelial-derived tissue, including liver, renal tubular epithelium, and hepatocellular and renal cell carcinomas.

Format
  • Format Alexa Fluor® 647
  • Excitation Source Red 633 nm
  • Excitation Max 650 nm
  • Emission Max 668 nm

Alexa Fluor® 647 conjugates are highly photostable and remain fluorescent over a broad pH range. The excitation and emission maxima are nearly identical to those of APC. However, APC tends to be brighter while Alexa Fluor® 647 is more optimal for intracellular applications. This fluorochrome exhibits uncommon photostability, making it an ideal choice for use in fluorescence microscopy. Due to nearly identical excitation and emission properties but different spillover characteristics, APC and Alexa Fluor® 647 cannot be used simultaneously.

Other Formats →

Suggested Companion Products

Stain Buffer (FBS) RUO
500 mL Cat No: 554656

Lysing Solution 10X Concentrate RUO (GMP)
100 Cat No: 349202

Permeabilizing Solution 2 RUO (GMP)
500 Cat No: 340973

Alexa Fluor® 647 Mouse IgG2a, κ Isotype Control RUO
100 Tests Cat No: 557715

Alexa Fluor® 647 Mouse IgG2a, κ Isotype Control RUO
50 Tests Cat No: 558053

Resources & Tools
 Spectrum Viewer  Panel Designer  Spectrum Viewer  Download TDS  Regulatory Document Website
Preparation and Storage

Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze. The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated to Alexa Fluor® 647 under optimum conditions, and unreacted Alexa Fluor® 647 was removed.

Product Notices

  1. This reagent has been pre-diluted for use at the recommended Volume per Test. We typically use 1 × 10^6 cells in a 100-µl experimental sample (a test).
  2. An isotype control should be used at the same concentration as the antibody of interest.
  3. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
  4. Source of all serum proteins is from USDA inspected abattoirs located in the United States.
  5. The Alexa Fluor®, Pacific Blue™, and Cascade Blue® dye antibody conjugates in this product are sold under license from Molecular Probes, Inc. for research use only, excluding use in combination with microarrays, or as analyte specific reagents. The Alexa Fluor® dyes (except for Alexa Fluor® 430), Pacific Blue™ dye, and Cascade Blue® dye are covered by pending and issued patents.
  6. Alexa Fluor® is a registered trademark of Molecular Probes, Inc., Eugene, OR.
  7. Alexa Fluor® 647 fluorochrome emission is collected at the same instrument settings as for allophycocyanin (APC).
  8. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
  9. Please refer to www.bdbiosciences.com/pharmingen/protocols for technical protocols.


Note: The CAM5.2 antibody can also be used to stain cells that have been fixed and permeabilized using BD Cytofix™ Fixation Buffer (Cat. No. 554655) and BD Perm/Wash™ Buffer (Cat. No. 554723).


  1. Battifora H. Diagnostic uses of antibodies to keratins: A review and immunohistochemical comparison of seven monoclonal and three polyclonal antibodies. In: Fenoglio-Preiser C, Wolff M, Rilke F, ed. Progress in Surgical Pathology. 1988; :1-15.

  2. Cooper D, Schermer A, Sun TT. Biology of disease classification of human epithelia and their neoplasms using monoclonal antibodies to keratins: strategies, applications and limitations. Lab Invest. 1985; 52:243-256. View reference

  3. Leader M, Patel J, Makin C, Henry K. An analysis of the sensitivity and specificity of the cytokeratin marker CAM 5.2 for epithelial tumors: results of a study of 203 sarcomas, 50 carcinomas, and 28 malignant melanomas. Histopathology. 1986; 10:1315-1324. View reference

  4. Makin C, Bobrow L, Bodmer W. Monoclonal antibody to cytokeratin for use in routine histopathology. J Clin Pathol. 1984; 37(9):975-983. View reference

  5. Moll R, Franke W, Schiller D, Geiger B, Krepler R. The catalog of human cytokeratins: patterns of expression in normal epithelia, tumors, and cultured cells. Cell. 1982; 31:11-24. View reference

  6. Smedts F, Ramaekers F, Robben H, et al. Changing patterns of keratin expression during progression of cervical intraepithelial neoplasia. Am J Pathol. 1990; 136(3):657-668. View reference

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