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Human CD44s Pan Specific PE‑conjugated Antibody

Catalog #: FAB4948P
2 Citations Datasheet / COA / SDS
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FAB4948P
Detection of CD44 in Human Blood Monocytes by Flow Cytometry.
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Citations (2)
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Summary Data Examples Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Human CD44s Pan Specific PE‑conjugated Antibody Summary

Species Reactivity
Human
Specificity
Detects human CD44s on a panel of CD44 transfected COS cells by flow cytometry (Fox, S.B. et al. (1994) Cancer Res. 54:4539). This antibody recognizes an epitope in the invariant N-terminal region of all CD44 protein isoforms.
Source
Monoclonal Mouse IgG2A Clone # 2C5
Purification
Protein A or G purified from ascites
Immunogen
Recombinant human CD44v3-10 (includes the invariant N-terminal exons and CD44v3-10 exons)
Formulation
Supplied in a saline solution containing BSA and Sodium Azide.
Label
Phycoerythrin (Excitation= 488 nm, Emission= 565-605 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 antibody in Human Blood Monocytes antibody by Flow Cytometry. View Larger

Detection of CD44 in Human Blood Monocytes by Flow Cytometry. Human peripheral blood monocytes were stained with Mouse Anti-Human CD44s Pan Specific PE-conjugated Monoclonal Antibody (Catalog # FAB4948P, filled histogram) or isotype control antibody (Catalog # IC003P, 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, CD44s, 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 80-200 kDa (1). Within the N‑terminal invariant portion of the ECD (aa 21-220), human CD44 shares 76%, 76%, 86%, 83%, and 79% 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.
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 CD44s Pan Specific PE‑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. Physiologic expansion of human heart-derived cells enhances therapeutic repair of injured myocardium
    Authors: S Mount, P Kanda, S Parent, S Khan, C Michie, L Davila, V Chan, RA Davies, H Haddad, D Courtman, DJ Stewart, DR Davis
    Stem Cell Res Ther, 2019-11-04;10(1):316.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  2. Metformin reveals a mitochondrial copper addiction of mesenchymal cancer cells
    Authors: S Müller, A Versini, F Sindikubwa, G Belthier, S Niyomchon, J Pannequin, L Grimaud, T Cañeque, R Rodriguez
    PLoS ONE, 2018-11-06;13(11):e0206764.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry

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