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Human CD44 v3 APC-conjugated Antibody

Catalog #: FAB5088A
2 Citations Datasheet / COA / SDS

Discontinued Product

FAB5088A has been discontinued.
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Detection of CD44 v3 in MDA‑MB‑231 Human Cell Line by Flow Cytometry.
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Citations (2)
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Human CD44 v3 APC-conjugated Antibody Summary

Species Reactivity
Human
Specificity
Detects human CD44v3 in Western blots. The specificity of monoclonal antibody clone 3G5 was determined by FACS analysis on a panel of CD44 transfected COS cells, and was deduced to be specific for CD44 protein isoforms containing human variant exon 3 (9).
Source
Monoclonal Mouse IgG2B Clone # 3G5
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
Recombinant human CD44v3-10
Formulation
Supplied in a saline solution containing BSA and Sodium Azide.
Label
Allophycocyanin (Excitation= 620-650 nm, Emission= 660-670 nm)

Applications

Recommended Concentration
Sample
Flow Cytometry
10 µL/106 cells
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Flow Cytometry Detection of CD44 v3 antibody in MDA-MB-231 Human Cell Line antibody by Flow Cytometry. View Larger

Detection of CD44 v3 in MDA‑MB‑231 Human Cell Line by Flow Cytometry. MDA-MB-231 human breast cancer cell line was stained with Mouse Anti-Human CD44 v3 APC-conjugated Monoclonal Antibody (Catalog # FAB5088A, filled histogram) or isotype control antibody (Catalog # IC0041A, open histogram). View our protocol for Staining Membrane-associated Proteins.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Preparation and Storage

Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Protect from light. Do not freeze.
  • 12 months from date of receipt, 2 to 8 °C as supplied.

Background: CD44

CD44 is a ubiquitously expressed protein that is the major receptor for hyaluronan and exerts control over cell growth and migration (1‑3). Human CD44 has a 20 amino acid (aa) signal sequence, an extracellular domain (ECD) with a 100 aa hyaluronan-binding disulfide-stabilized link region and a 325‑530 aa stem region, a 21 aa transmembrane domain, and a 72 aa cytoplasmic domain. Within the stem, ten variably spliced exons (v1‑10, exons 6‑15) produce multiple protein isoforms (1‑3). The standard or hematopoietic form, CD44H, does not include the variable segments (1‑3). Cancer aggressiveness and T cell activation have been correlated with expression of specific isoforms (1, 3). With variable N‑ and O-glycosylation and splicing within the stalk, CD44 can range from 80 to 200 kDa (1). Within the N‑terminal invariant portion of the ECD (aa 21‑220), human CD44 shares 76%, 76%, 86%, 83% and 79% aa sequence identity with corresponding mouse, rat, equine, canine and bovine CD44, respectively. The many reported functions of CD44 fall within three categories (1). First, CD44 binds hyaluronan and other ligands within the extracellular matrix and can function as a “platform” for growth factors and metalloproteinases. Second, CD44 can function as a co-receptor that modifies activity of receptors including MET and the ERBB family of tyrosine kinases. Third, the CD44 intracellular domain links the plasma membrane to the actin cytoskeleton via the ERM proteins, ezrin, radixin and moesin. CD44 can be synthesized in a soluble form (4) or may be cleaved at multiple sites by either membrane-type matrix metalloproteinases, or ADAM proteases to produce soluble ectodomains (5, 6). The cellular portion may then undergo gamma secretase-dependent intramembrane cleavage to form an A beta -like transmembrane portion and a cytoplasmic signaling portion that affects gene expression (7, 8). These cleavage events are thought to promote metastasis by enhancing tumor cell motility and growth (1, 5).

References
  1. Ponta, H. et al. (2003) Nat. Rev. Mol. Cell Biol. 4:33.
  2. Screaton, G.R. et al. (1992) Proc. Natl. Acad. Sci. USA 89:12160.
  3. Lynch, K.W. (2004) Nat. Rev. Immunol. 4:931.
  4. Yu, Q. and B.P. Toole (1996) J. Biol. Chem. 271:20603.
  5. Nagano, O. and H. Saya (2004) Cancer Sci. 95:930.
  6. Nakamura, H. et al. (2004) Cancer Res. 64:876.
  7. Murakami, D. et al. (2003) Oncogene 22:1511.
  8. Lammich, S. et al. (2002) J. Biol. Chem. 277:44754.
  9. Fox, S.B. et al. (1994) Cancer Res. 54:4539.
Entrez Gene IDs
960 (Human); 12505 (Mouse); 25406 (Rat); 100126860 (Porcine)
Alternate Names
CD44 antigen; CD44 molecule (Indian blood group); CD44; CD44R; CDw44; cell surface glycoprotein CD44; chondroitin sulfate proteoglycan 8; CSPG8; ECMR-III; epican; Extracellular matrix receptor III; GP90 lymphocyte homing/adhesion receptor; HCAM; HCELL; hematopoietic cell E- and L-selectin ligand; Heparan sulfate proteoglycan; Hermes antigen; homing function and Indian blood group system; HUTCH-I; Hyaluronate receptor; IN; LHR; MC56; MDU2; MDU2CD44 antigen (homing function and Indian blood group system); MDU3; MDU3CDW44; MIC4; MIC4MGC10468; MUTCH-I; Pgp1; PGP-1; PGP-I; Phagocytic glycoprotein 1; Phagocytic glycoprotein I

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Citations for Human CD44 v3 APC-conjugated Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

2 Citations: Showing 1 - 2
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  1. Cargo and Functional Profile of Saliva-Derived Exosomes Reveal Biomarkers Specific for Head and Neck Cancer
    Authors: Linda Hofmann, Valentin Medyany, Jasmin Ezić, Ramin Lotfi, Beate Niesler, Ralph Röth et al.
    Frontiers in Medicine
    Species: Human
    Sample Types: Exosomes
    Applications: Flow Cytometry
  2. CD44v3+/CD24- cells possess cancer stem cell-like properties in human oral squamous cell carcinoma.
    Authors: Todoroki K, Ogasawara S, Akiba J, Nakayama M, Naito Y, Seki N, Kusukawa J, Yano H
    Int J Oncol, 2015-11-20;48(1):99-109.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry

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