• Product nameAnti-CSK antibody
    See all CSK primary antibodies
  • Description
    Goat polyclonal to CSK
  • Tested applicationsSuitable for: WB, IHC-Pmore details
  • Species reactivity
    Reacts with: Mouse, Rat, Human
    Predicted to work with: Cow, Dog
  • Immunogen

    Synthetic peptide: EQLEHIKTHELHL, corresponding to C terminal amino acids 438-450 of Human CSK.

  • Positive control
    • Jurkat cell lysate, Human colon tissue.
  • General notesGenBank Accession Number – NP_004374.


  • FormLiquid
  • Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid repeated freeze / thaw cycles.
  • Storage bufferPreservative: 0.02% Sodium Azide
    Constituents: 0.5% BSA, Tris-saline. pH 7.3
  • Concentration information loading...
  • PurityImmunogen affinity purified
  • Purification notesPurified from goat serum by ammonium sulphate precipitation followed by antigen affinity chromatography using the immunizing peptide.
  • ClonalityPolyclonal
  • IsotypeIgG
  • Research areas


Our Abpromise guarantee covers the use of ab744 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
WB Use a concentration of 0.5 - 2 µg/ml. Detects a band of approximately 50 kDa (predicted molecular weight: 52 kDa).Can be blocked with Human CSK peptide (ab19039).
IHC-P Use at an assay dependent concentration.


  • FunctionSpecifically phosphorylates 'Tyr-504' on LCK, which acts as a negative regulatory site. Can also act on the LYN and FYN kinases.
  • Tissue specificityExpressed in lung and macrophages.
  • Sequence similaritiesBelongs to the protein kinase superfamily. Tyr protein kinase family. CSK subfamily.
    Contains 1 protein kinase domain.
    Contains 1 SH2 domain.
    Contains 1 SH3 domain.
  • Post-translational
    Autophosphorylation of Tyr-304 occurs only at abnormally high CSK concentrations in vitro.
  • Cellular localizationCytoplasm. Cell membrane. Mainly cytoplasmic, also present in lipid rafts.
  • Information by UniProt
  • Database links
  • Alternative names
    • C SRC antibody
    • C SRC kinase antibody
    • C src Tyrosine Kinase antibody
    • C-SRC kinase antibody
    • c-src tyrosine kinase antibody
    • Csk A antibody
    • CSK antibody
    • CSK_HUMAN antibody
    • EC antibody
    • MGC112926 antibody
    • MGC117393 antibody
    • MGC154049 antibody
    • P60 Src antibody
    • Protein tyrosine kinase CYL antibody
    • Protein-tyrosine kinase CYL antibody
    • Proto oncogene tyrosine protein kinase antibody
    • Tyrosine protein kinase CSK antibody
    • Tyrosine-protein kinase CSK antibody
    • zgc:154049 antibody
    see all

Anti-CSK antibody images

  • Predicted band size : 52 kDa

    ab744 staining (0.5µg/ml) of Jurkat lysate (RIPA buffer, 35µg total protein per lane). Primary incubated for 1 hour. Detected by western blot using chemiluminescence.
  • ab744 at 4µg/ml staining CSK in Human Colon by Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections). Steamed antigen retrieval with citrate buffer pH 6, HRP-staining.
  • Anti-CSK antibody (ab744) at 1 µg/ml + Mouse spleen lysate in RIPA buffer at 35 µg
    Developed using the ECL technique

    Predicted band size : 52 kDa

References for Anti-CSK antibody (ab744)

This product has been referenced in:
  • Yeh WL  et al. Fulvestrant-induced cell death and proteasomal degradation of estrogen receptor a protein in MCF-7 cells require the CSK c-Src tyrosine kinase. PLoS One 8:e60889 (2013). WB ; Human . Read more (PubMed: 23593342) »
  • Ribeiro-Oliveira A  et al. Protein western array analysis in human pituitary tumours: insights and limitations. Endocr Relat Cancer 15:1099-114 (2008). WB ; Human . Read more (PubMed: 18701577) »

See all 2 Publications for this product

Product Wall

Thank you for your enquiry. I contacted the originator of this antibody and they said they also did a preliminary Western blot with mouse spleen lysate and saw a band at approximately 45 kDa - but they aren't sure if it's correct. Please let me kno...

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