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Safety Data Sheet (SDS) Alexa Fluor 647 Anti-rat CD44H Pgp-1 H-CAM Antibody     Product Data Sheet (PDF)    
Alexa Fluor® 647 Anti-rat CD44H (Pgp-1, H-CAM) Antibody
1619540 100 µg $220.00       
Clone: OX-49
Isotype: Mouse IgG2a, κ
Reactivity: Rat
Immunogen: Rat T blasts from mixed lymphocyte reactions
Formulation: Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
Preparation: The antibody was purified by affinity chromatography, and conjugated with Alexa Fluor® 647 under optimal conditions.
Concentration: 0.5 mg/ml
Storage & Handling: The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.

FC - Quality tested

Recommended Usage:

Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤0.25 µg per million cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.

* Alexa Fluor® 647 has a maximum emission of 668 nm when it is excited at 633 nm / 635 nm.

Application References:

1. Paterson DJ, et al. 1987. Mol Immunol. 24(12):1281

LOU rat splenocytes stained with

LOU rat splenocytes stained with OX-49 Alexa Fluor® 647


CD44 is an 80-95 kD cell surface glycoprotein. It is expressed on all leukocytes, endothelial cells, hepatocytes, and mesenchymal cells. It is up-regulated when T cells and B cells are activated. It was reported that CD44 is a valuable marker for memory T cells. CD44 is an adhesion molecule involved in leukocyte adhesion and homing to lymphoid organs. The OX-49 antibody reacts with CD44H (known as CD44s) expressed on most leukocytes, except for a subset of B lymphocytes. The epitope recognized by OX-49 antibody has been mapped to a region on both the standard, CD44s, and the splice variant, CD44v, isoforms of CD44. However it was reported that OX-49 antibody cannot detect the CD44V isoform, possibly due to conformational changes in the epitope.

Other Names: Pgp-1, H-CAM, CD44s
Structure: A 80-95 kD cell surface glycoprotein
Distribution: Expressed on most leukocytes. It is up-regulated when T cells and B cells are activated.
Function: Involve in leukocyte adhesion and homing to lymphoid organs.
Ligand Receptor: Hyaluronate
Antigen References:

1. Arch R, et al. 1992. Science 257 (5070):682
2. Mitnacht R, et al. 1995. Eur. J. Immunol. 25(2):328
3. Zheng Z, et al. 1995. J Cell Bio. 130(2):485
4. Westermann J, et al. 1994. Eur. J. Immunol. 24(10):2312

This product is provided under an agreement between Life Technologies Corporation and Sony Biotechnology Inc. and the manufacture, use, sale or import of this product may be subject to one or more U.S. patents, pending applications, and corresponding non-U.S. equivalents, owned by and/or licensed to Life Technologies Corporation and its affiliates. The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product and components of the product in research and/or development conducted by the buyer (whether the buyer is an academic or for profit entity). The buyer cannot sell or otherwise transfer (a) this product (b) its components or (c) materials made using this product or its components to a third party or otherwise use this product or its components or materials made using this product or its components for Commercial Purposes. Commercial Purposes means any activity by a party for consideration and may include, but is not limited to (1) use of the product or its components in manufacturing, (2) use of the product or its components for therapeutic, diagnostic or prophylactic purposes, or (3) resale of the product or its components, whether or not such product or its components are resold for use in research. For information on purchasing a license to this product for any other use, contact Life Technologies Corporation, Molecular Probes Detection Technologies, Attn: Business Development, 29851 Willow Creek Road, Eugene, OR 97402, USA, Tel: (541) 465-8300. Fax: (541) 335-0504.