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Immunofluorescence (Immunocytochemistry)

Confocal immunofluorescent analysis of HeLa cells using RPA32 (4E4) Rat mAb #2208 detected with Anti-rat IgG (H+L) (Alexa Fluor® 555 Conjugate) (red) and COX IV (3E11) Rabbit mAb #4850 detected with Anti-rabbit IgG (H+L), F(ab')2 Fragment (Alexa Fluor® 488 Conjugate) #4412 (green). Actin filaments have been labeled with Alexa Fluor® 647 phalloidin (blue).

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Product Usage Information

The optimal dilution of the anti-species antibody should be determined for each application. However, a final dilution of 1:1000 should yield acceptable results for most immunofluorescent applications.


Storage: Supplied in PBS (pH 7.2), less than 0.1% sodium azide and 2 mg/ml BSA. Store at 4°C. Do not aliquot the antibody. Protect from light. Do not freeze.

Product Description

Anti-rat IgG (H+L) antibody was conjugated to Alexa Fluor® 555 fluorescent dye under optimal conditions and formulated at 2 mg/mL.


Specificity / Sensitivity

IgG is prepared from goat antibodies that have been adsorbed against mouse IgG, mouse serum and human serum.


This product has been optimized for use as a secondary antibody in immunofluorescent applications. Fluorescent anti-species IgG conjugates are ideal for flow cytometry and immunofluorescence. Cell Signaling Technology’s strict quality control procedures assure that each conjugate provides optimal specificity and fluorescence.



For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology® is a trademark of Cell Signaling Technology, Inc.
Alexa Fluor® is a registered trademark of Life Technologies Corporation.
The Alexa Fluor® dye antibody conjugates in this product are sold under license from Life Technologies Corporation, for research use only for immunocytometry, immunohistochemistry, high content screening (HCS) analysis, or flow cytometry applications.
The transfer of this product is contingent on the buyer using the purchased product solely in research conducted by the buyer (whether the buyer is an academic or for-profit entity), for Immunocytochemistry, high content screening (HCS) analysis, or flow cytometry applications. The sale of this product is expressly conditioned on the buyer not using the product or its components (1) in manufacturing; (2) to provide a service, information, or data to an unaffiliated third party for payment; (3) for therapeutic, diagnostic or prophylactic purposes; (4) resale, whether or not such product or its components are resold for use in research; or for any other commercial purpose. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, 5791 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@lifetech.com.