• Product nameAnti-STAT5a (phospho Y694) antibody
    See all STAT5a primary antibodies
  • Description
    Rabbit polyclonal to STAT5a (phospho Y694)
  • Specificityab30648 detects endogenous levels of STAT5A only when phosphorylated at Tyrosine 694. Antibody ab31377 is raised against the same peptide sequence but non-phosphorylated at tyrosine 694.
  • Tested applicationsSuitable for: WB, ELISA, IHC-Pmore details
  • Species reactivity
    Reacts with: Mouse, Rat, Human
  • Immunogen

    Synthetic phosphopeptide derived from human STAT5a around the phosphorylation site of Tyrosine 694.

  • Positive control
    • Breast carcinoma tissue; HeLa cells treated with EGF.


  • FormLiquid
  • Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
  • Storage bufferPreservative: 0.02% Sodium Azide
    Constituents: 50% Glycerol, PBS (without Mg++ and Ca++), 150mM Sodium chloride, pH 7.4
  • Concentration information loading...
  • PurityImmunogen affinity purified
  • Purification notesThe antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific phosphopeptide. The antibody against non-phosphopeptide was removed by chromatography using non-phosphopeptide corresponding to the phosphorylation site
  • ClonalityPolyclonal
  • IsotypeIgG
  • Research areas


Our Abpromise guarantee covers the use of ab30648 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 1/500 - 1/1000. Detects a band of approximately 90 kDa (predicted molecular weight: 91 kDa).
ELISA 1/20000.
IHC-P Use at an assay dependent concentration.


  • FunctionCarries out a dual function: signal transduction and activation of transcription. Binds to the GAS element and activates PRL-induced transcription.
  • Sequence similaritiesBelongs to the transcription factor STAT family.
    Contains 1 SH2 domain.
  • Post-translational
    Tyrosine phosphorylated in response to IL-2, IL-3, IL-7, IL-15, GM-CSF, growth hormone, prolactin, erythropoietin and thrombopoietin. Tyrosine phosphorylation is required for DNA-binding activity and dimerization. Serine phosphorylation is also required for maximal transcriptional activity.
  • Cellular localizationCytoplasm. Nucleus. Translocated into the nucleus in response to phosphorylation.
  • Information by UniProt
  • Database links
  • Alternative names
    • Mammary gland factor antibody
    • MGF antibody
    • Signal transducer and activator of transcription 5A antibody
    • STA5A_HUMAN antibody
    • STAT 5 antibody
    • STAT 5A antibody
    • STAT5 antibody
    • STAT5A antibody
    see all

Anti-STAT5a (phospho Y694) antibody images

  • Immunohistochemical analysis of paraffin-embedded breast carcinoma tissue. Left: Using ab30648 (10ug/ml); right: the same antibody preincubated with synthesized phosphopeptide.
  • All lanes : Anti-STAT5a (phospho Y694) antibody (ab30648)

    Lane 1 : HeLa cells untreated
    Lane 2 : HeLa cells treated with EGF

    Predicted band size : 91 kDa
    Observed band size : 90 kDa (why is the actual band size different from the predicted?)

References for Anti-STAT5a (phospho Y694) antibody (ab30648)

This product has been referenced in:
  • Surana R  et al. IL4 limits the efficacy of tumor-targeted antibody therapy in a murine model. Cancer Immunol Res 2:1103-12 (2014). Read more (PubMed: 25204776) »
  • Bertucci PY  et al. Glucocorticoid-induced impairment of mammary gland involution is associated with STAT5 and STAT3 signaling modulation. Endocrinology 151:5730-40 (2010). Read more (PubMed: 20881248) »

See all 2 Publications for this product

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