• Product nameHuman CD44var ELISA Kit (v5)
  • Detection methodColorimetric
  • Precision
    Sample n Mean SD CV%
    Overall 8 3.6%
    Sample n Mean SD CV%
    Overall 8 5.8%
  • Tests
    1 x 96 well plate
  • Sample type
    Cell culture supernatant, Urine, Serum, Plasma
  • Assay typeSandwich (quantitative)
  • Sensitivity
    0.14 ng/ml
  • Range
    0.31 ng/ml - 10 ng/ml
  • Recovery

    92 %

    Sample specific recovery
    Sample type Average % Range
    Serum 92 84% - 100%

  • Assay durationMultiple steps standard assay
  • Species reactivity
    Reacts with: Human
  • Product overview

    Abcam’s CD44var (v5) Human in vitro ELISA (Enzyme-Linked Immunosorbent Assay) kit is designed for accurate quantitative measurement of Human CD44var (v5) concentrations in Cell culture supernatant, serum and plasma (EDTA, citrate, heparin), amniotic fluid and urine.

    CD44var (v5) specific antibodies have been precoated onto 96-well plates. Standards and test samples are added to the wells, along with a CD44var (v5) HRP-conjugated detection antibody and the microplate is then incubated at room temperature. After the removal of unbound proteins by washing, TMB is added and catalyzed by HRP to produce a blue color product that changes to yellow after addition of an acidic stop solution. The density of yellow coloration is directly proportional to the CD44var (v5) amount of sample captured in plate.

  • Tested applicationsSuitable for: Sandwich ELISAmore details
  • PlatformMicroplate


  • FunctionReceptor for hyaluronic acid (HA). Mediates cell-cell and cell-matrix interactions through its affinity for HA, and possibly also through its affinity for other ligands such as osteopontin, collagens, and matrix metalloproteinases (MMPs). Adhesion with HA plays an important role in cell migration, tumor growth and progression. Also involved in lymphocyte activation, recirculation and homing, and in hematopoiesis. Altered expression or dysfunction causes numerous pathogenic phenotypes. Great protein heterogeneity due to numerous alternative splicing and post-translational modification events.
  • Tissue specificityIsoform 10 (epithelial isoform) is expressed by cells of epithelium and highly expressed by carcinomas. Expression is repressed in neuroblastoma cells.
  • Sequence similaritiesContains 1 Link domain.
  • DomainThe lectin-like LINK domain is responsible for hyaluronan binding.
  • Post-translational
    Proteolytically cleaved in the extracellular matrix by specific proteinases (possibly MMPs) in several cell lines and tumors.
    O-glycosylated; contains more-or-less-sulfated chondroitin sulfate glycans, whose number may affect the accessibility of specific proteinases to their cleavage site(s).
    Phosphorylated; activation of PKC results in the dephosphorylation of Ser-706 (constitutive phosphorylation site), and the phosphorylation of Ser-672.
  • Cellular localizationMembrane.
  • Information by UniProt
  • Alternative names
    • CD44
    • CD44 antigen
    • CD44 molecule
    • CD44_HUMAN
    • CDw44
    • Cell surface glycoprotein CD44
    • Chondroitin sulfate proteoglycan 8
    • CSPG8
    • ECMR-III
    • Epican
    • Extracellular matrix receptor III
    • GP90 lymphocyte homing/adhesion receptor
    • 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
    • Indian blood group
    • LHR
    • MC56
    • MDU2
    • MDU3
    • MIC4
    • PGP-1
    • PGP-I
    • Pgp1
    • Phagocytic glycoprotein 1
    • Phagocytic glycoprotein I
    see all
  • Database links


Our Abpromise guarantee covers the use of ab119518 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
Sandwich ELISA Use at an assay dependent concentration.

Human CD44var ELISA Kit (v5) images

  • Representative Standard Curve using ab119518.


References for Human CD44var ELISA Kit (v5) (ab119518)

ab119518 has not yet been referenced specifically in any publications.

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