LEAF™ Purified anti-mouse/human CD44 Antibody

Pricing & Availability
Clone
IM7 (See other available formats)
Other Names
Hermes, Pgp-1, H-CAM, HUTCH-1, ECMR III, gp85, Ly-24
Isotype
Rat IgG2b, κ
Ave. Rating
1 reviews
Product Citations
publications
IM7_LEAF_091907
C57BL/6 mouse splenocytes stained with LEAF™ purified IM7, followed by anti-rat IgG FITC
  • IM7_LEAF_091907
    C57BL/6 mouse splenocytes stained with LEAF™ purified IM7, followed by anti-rat IgG FITC
Cat # Size Price Quantity Avail. Save
103013 50 µg 64€
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103014 500 µg 208€
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103033 1 mg 360€
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Description

CD44 is a 80-95 kD glycoprotein also known as Hermes, Pgp1, H-CAM, or HUTCH. It is expressed on all leukocytes, endothelial cells, hepatocytes, and mesenchymal cells. As B and T cells become activated or progress to the memory stage, CD44 expression increases from low or mid levels to high levels. Thus, CD44 has been reported to be a valuable marker for memory cell subsets. High CD44 expression on Treg cells has been associated with potent suppressive function via high production of IL-10. CD44 is an adhesion molecule involved in leukocyte attachment to and rolling on endothelial cells, homing to peripheral lymphoid organs and to the sites of inflammation, and leukocyte aggregation.

Product Details
Technical Data Sheet (pdf)

Product Details

Reactivity
Mouse, Human, Cross-Reactivity: Baboon, Chimpanzee, Cynomolgus, Rhesus, Squirrel Monkey, Horse (Equine), Cattle (Bovine, Cow), Swine (Pig, Porcine), Dog (Canine), Cat (Feline)
Antibody Type
Monoclonal
Host Species
Rat
Immunogen
Dexamethasone-induced myeloid leukemia M1 cells
Formulation
0.2 µm filtered in phosphate-buffered solution, pH 7.2, containing no preservative. Endotoxin level is <0.1 EU/µg of the protein (<0.01 ng/µg of the protein) as determined by the LAL test.
Preparation
The LEAF™ (Low Endotoxin, Azide-Free) antibody was purified by affinity chromatography.
Concentration
1.0 mg/ml
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C. This LEAF™ solution contains no preservative; handle under aseptic conditions.
Application

FC - Quality tested
CyTOF® - Validated
ELISA, IHC, IP, CMCD, Stim - Reported in the literature

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 106 cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.

Application Notes

Clone IM7 has been reported to recognize an epitope common to alloantigens and all isoforms of CD4417,18 that is located between amino acids 145 and 18620. This clone has been validated for immunocytochemistry (ICC) and frozen immunohistochemistry (IHC-F). Additional reported applications (for the relevant formats) include: immunohistochemistry of acetone-fixed frozen sections and formalin-fixed paraffin-embedded sections6,7, complement-mediated cytotoxicity1, immunoprecipitation1,3, and in vivo inhibition of DTH4,5. The LEAF™ purified antibody (Endotoxin <0.1 EU/μg, Azide-Free, 0.2 μm filtered) is recommended for functional assays (Cat. No. 103014). For highly sensitive assays, we recommend Ultra-LEAF™ purified antibody (Cat. No. 103046) with a lower endotoxin limit than standard LEAF™ purified antibodies (Endotoxin <0.01 EU/µg).

Application References
  1. Trowbridge IS, et al. 1982. Immunogenetics 15:299. (ICFC, IP, CMCD)
  2. Katoh S, et al. 1994. J. Immunol. 153:3440. (ELISA)
  3. Budd RC, et al. 1987. J. Immunol. 138:3120. (IP)
  4. Camp RL, et al. 1993. J. Exp. Med. 178:497. (Block)
  5. Weiss JM, et al. 1997. J. Cell Biol. 137:1137. (Block)
  6. Frank NY, et al. 2005. Cancer Res. 65:4320. (IHC) PubMed
  7. Cuff CA, et al. 2001. J. Clin. Invest. 108:1031. (IHC)
  8. Lee JW, et al. 2006. Nature Immunol. 8:181.
  9. Zhang N, et al. 2005. J. Immunol. 174:6967. PubMed
  10. Huabiao C, et al. 2005. J. Immunol. 175:591. PubMed
  11. Gui J, et al. 2007. Int. Immunol. 19:1201. PubMed
  12. Wang XY, et al. 2008. Blood 111:2436. PubMed
  13. Kenna TJ, et al. 2008. Blood 111:2091. PubMed
  14. Yamazaki J, et al. 2009. Blood PubMed
  15. Kmieciak M, et al. 2009. J. Transl. Med. 7:89. (FC) PubMed
  16. Chen YW, et al. 2010. Mol. Cancer Ther. 9:2879. PubMed
  17. Zheng Z, et al. 1995. J. Cell. Biol. 130:485.
  18. Wiranowska M, et al. 2010. Int. J. Cancer 127:532.
  19. Hirokawa Y, et al. 2014. Am J Physiol Gastrointerest Liver Physiol. 306:547. PubMed
  20. Sandmaier BM, et al. 1998. Blood 91:3494.
  21. Yang Y, et al. 2015. Hypertension. 65:1047. PubMed
  22. Peterson VM, et al. 2017. Nat. Biotechnol. 35:936. (PG)
Product Citations
  1. Chen H, et al. 2005. J Immunol. 175:591. PubMed
  2. Sun W, et al. 2012. J Interferon Cytokine Res. 32:505. PubMed
  3. Sahlberg S, et al. 2014. PLoS One. 9:94621. PubMed
  4. Yin L, et al. 2016. J Mol Endocrinol. 57: 61 - 72. PubMed
  5. Huang GX, et al. 2018. Mol Med Rep. 17:3380. PubMed
Publication Library
RRID
AB_312964 (BioLegend Cat. No. 103013)
AB_312965 (BioLegend Cat. No. 103014)
AB_2260192 (BioLegend Cat. No. 103033)

Antigen Details

Structure
Variable splicing of CD44 gene generates many CD44 isoforms, 80-95 kD
Distribution

All leukocytes, epithelial cells, endothelial cells, hepatocytes, mesenchymal cells

Function
Leukocyte attachment and rolling on endothelial cells, stromal cells and ECM
Ligand/Receptor
Hyaluronan, MIP-1β, fibronectin, collagen
Cell Type
Endothelial cells, Epithelial cells, Leukocytes, Mesenchymal cells, Mesenchymal Stem Cells, B cells, Tregs
Biology Area
Cell Adhesion, Cell Biology, Immunology, Stem Cells
Molecular Family
Adhesion Molecules, CD Molecules
Antigen References

1. Barclay AN, et al. 1997. The Leukocyte Antigen FactsBook Academic Press.
2. Haynes BF, et al. 1991. Cancer Cells 3:347.
3. Goldstein LA, et al. 1989. Cell 56:1063.
4. Mikecz K, et al. 1995. Nat. Med. 1:558.
5. Hegde V, et al. 2008. J. Leukocyte Biol. 84:134.
6. Liu T, et al. 2009. Biol. Direct 4:40.

Gene ID
12505 View all products for this Gene ID 960 View all products for this Gene ID
UniProt
View information about CD44 on UniProt.org

Related FAQs

Does BioLegend test each LEAF™ antibody by functional assay?

No, BioLegend does not test LEAF™ antibodies by functional assays unless otherwise indicated. Due to the possible complexities and variations of uses of biofunctional antibodies in different assays and because of the large product portfolio, BioLegend does not currently perform functional assays as a routine QC for the antibodies. However, we do provide references in which the antibodies were used for functional assays and we do perform QC to verify the specificity and quality of the antibody based on our strict specification criteria.

Do you guarantee that your antibodies are totally pathogen free?

BioLegend does not test for pathogens in-house aside from the GoInVivo™ product line. However, upon request, this can be tested on a custom basis with an outside, independent laboratory.

Does BioLegend test each LEAF™ antibody for potential pathogens?

No, BioLegend does not test for pathogens in-house unless otherwise indicated.  However, we can recommend an outside vendor to perform this testing as needed.

Have you tested this LEAF™/Ultra-LEAF™ antibody for in vivo or in vitro applications?

We don't test our antibodies for in vivo or in vitro applications unless otherwise indicated. Depending on the product, the TDS may describe literature supporting usage of a particular product for bioassay. It may be best to further consult the literature to find clone specific information.

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For research use only. Not for diagnostic use. Not for resale. BioLegend will not be held responsible for patent infringement or other violations that may occur with the use of our products.

 

*These products may be covered by one or more Limited Use Label Licenses (see the BioLegend Catalog or our website, www.biolegend.com/ordering#license). BioLegend products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products, reverse engineer functionally similar materials, or to provide a service to third parties without written approval of BioLegend. By use of these products you accept the terms and conditions of all applicable Limited Use Label Licenses. Unless otherwise indicated, these products are for research use only and are not intended for human or animal diagnostic, therapeutic or commercial use.

 

BioLegend Inc., 8999 BioLegend Way, San Diego, CA 92121 www.biolegend.com
Toll-Free Phone: 1-877-Bio-Legend (246-5343) Phone: (858) 768-5800 Fax: (877) 455-9587

This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
If you need assistance with selecting the best format contact our expert technical support team.

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