Recombinant Anti-Hsp27 (phospho S78) antibody [Y175] (ab32501)

Rabbit recombinant monoclonal Hsp27 (phospho S78) antibody [Y175]. Validated in WB, IHC, Dot, ICC/IF and tested in Human. Cited in 4 publication(s).


  • Product name

    Anti-Hsp27 (phospho S78) antibody [Y175]
    See all Hsp27 primary antibodies
  • Description

    Rabbit monoclonal [Y175] to Hsp27 (phospho S78)
  • Host species

  • Specificity

    ab32501 recognises Hsp27 (phospho S78). The antibody will detect Src phosphorylation on Serine 78.
  • Tested applications

    Suitable for: WB, IHC-P, ICC/IF, IHC-Fr, Dot blotmore details
    Unsuitable for: Flow Cyt or IP
  • Species reactivity

    Reacts with: Human
  • Immunogen

    Synthetic phospho-peptide corresponding to residues surrounding Serine 78 of human HSP27

  • Positive control

    • HeLa cells, human breast carcinoma
  • General notes

    A trial size is available to purchase for this antibody.

    Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information.


    Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents.

    This product is a recombinant rabbit monoclonal antibody.



Our Abpromise guarantee covers the use of ab32501 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 1/2000. Predicted molecular weight: 23 kDa.
IHC-P Use at an assay dependent concentration. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
ICC/IF 1/250 - 1/500.
IHC-Fr Use at an assay dependent concentration. PubMed: 21248247
Dot blot 1/2000.
  • Application notes
    Is unsuitable for Flow Cyt or IP.
  • Target

    • Function

      Involved in stress resistance and actin organization.
    • Tissue specificity

      Detected in all tissues tested: skeletal muscle, heart, aorta, large intestine, small intestine, stomach, esophagus, bladder, adrenal gland, thyroid, pancreas, testis, adipose tissue, kidney, liver, spleen, cerebral cortex, blood serum and cerebrospinal fluid. Highest levels are found in the heart and in tissues composed of striated and smooth muscle.
    • Involvement in disease

      Defects in HSPB1 are the cause of Charcot-Marie-Tooth disease type 2F (CMT2F) [MIM:606595]. CMT2F is a form of Charcot-Marie-Tooth disease, the most common inherited disorder of the peripheral nervous system. Charcot-Marie-Tooth disease is classified in two main groups on the basis of electrophysiologic properties and histopathology: primary peripheral demyelinating neuropathy or CMT1, and primary peripheral axonal neuropathy or CMT2. Neuropathies of the CMT2 group are characterized by signs of axonal regeneration in the absence of obvious myelin alterations, normal or slightly reduced nerve conduction velocities, and progressive distal muscle weakness and atrophy. Nerve conduction velocities are normal or slightly reduced. CMT2F onset is between 15 and 25 years with muscle weakness and atrophy usually beginning in feet and legs (peroneal distribution). Upper limb involvement occurs later. CMT2F inheritance is autosomal dominant.
      Defects in HSPB1 are a cause of distal hereditary motor neuronopathy type 2B (HMN2B) [MIM:608634]. Distal hereditary motor neuronopathies constitute a heterogeneous group of neuromuscular disorders caused by selective impairment of motor neurons in the anterior horn of the spinal cord, without sensory deficit in the posterior horn. The overall clinical picture consists of a classical distal muscular atrophy syndrome in the legs without clinical sensory loss. The disease starts with weakness and wasting of distal muscles of the anterior tibial and peroneal compartments of the legs. Later on, weakness and atrophy may expand to the proximal muscles of the lower limbs and/or to the distal upper limbs.
    • Sequence similarities

      Belongs to the small heat shock protein (HSP20) family.
    • Post-translational

      Phosphorylated in MCF-7 cells on exposure to protein kinase C activators and heat shock.
    • Cellular localization

      Cytoplasm. Nucleus. Cytoplasm > cytoskeleton > spindle. Cytoplasmic in interphase cells. Colocalizes with mitotic spindles in mitotic cells. Translocates to the nucleus during heat shock and resides in sub-nuclear structures known as SC35 speckles or nuclear splicing speckles.
    • Information by UniProt
    • Database links

    • Alternative names

      • Heat shock 27kDa protein antibody
      • 28 kDa heat shock protein antibody
      • CMT2F antibody
      • DKFZp586P1322 antibody
      • epididymis secretory protein Li 102 antibody
      • Estrogen regulated 24 kDa protein antibody
      • Estrogen-regulated 24 kDa protein antibody
      • Heat shock 25kDa protein 1 antibody
      • Heat shock 27 kDa protein antibody
      • Heat shock 27kD protein 1 antibody
      • Heat shock 27kDa protein 1 antibody
      • Heat shock 28kDa protein 1 antibody
      • Heat Shock Protein 27 antibody
      • Heat shock protein beta 1 antibody
      • Heat shock protein beta-1 antibody
      • heat shock protein family B (small) member 1 antibody
      • HEL-S-102 antibody
      • HMN2B antibody
      • HS.76067 antibody
      • Hsp 25 antibody
      • HSP 27 antibody
      • Hsp 28 antibody
      • Hsp B1 antibody
      • Hsp25 antibody
      • HSP27 antibody
      • Hsp28 antibody
      • HspB1 antibody
      • HSPB1_HUMAN antibody
      • SRP27 antibody
      • Stress responsive protein 27 antibody
      • Stress-responsive protein 27 antibody
      see all


    • All lanes : Anti-Hsp27 (phospho S78) antibody [Y175] (ab32501) at 1/5000 dilution

      Lane 1 : HeLa (Human epithelial cell line from cervix adenocarcinoma) whole cell lysates
      Lane 2 : HeLa (Human epithelial cell line from cervix adenocarcinoma) whole cell lysates, treated with anisomycin.
      Lane 3 : HeLa (Human epithelial cell line from cervix adenocarcinoma) whole cell lysates, treated with anisomycin. Then the membrane was incubated with phosphatase.

      Lysates/proteins at 15 µg per lane.

      All lanes : Goat Anti-Rabbit IgG H&L (HRP) (ab97051)

      Predicted band size: 23 kDa
      Observed band size: 27 kDa
      why is the actual band size different from the predicted?

      Blocking buffer 5% NFDM/TBST

      Diluting buffer 5% NFDM/TBST

      Secondary Ab at 1/20,000 dilution

    • ab32501 staining Hsp27 in HeLa cells by Immunocytochemistry. Tissue was fixed with 4% paraformaldehyde. Samples were incubated with primary antibody (4.5 μg/ml). ab150077 AlexaFluor®488 Goat anti-Rabbit (1/1000) was used as the secondary antibody. Ab195889 Anti-alpha Tubulin antibody [DM1A] - Microtubule Marker (Alexa Fluor® 594) at 2.5 μg/ml and DAPI were used as counter stains.

      Confocal image showing the expression was increased after treatment with anisomycin (25ug/ml for 30min) and then decreased after treatment with the Lambda Protein Phosphatase 31℃ for 2h

    • Dot Blot analysis on immunogen phospho-peptide (A) and non-phospho peptide (B) using ab32501 at dilution 1/2000.
    • Immunohistochemical analysis of Hsp27 phospho S78 expression in paraffin embedded human breast carcinoma using 1/250 ab32501.

      Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.

    • Immunofluorescent analysis of Hsp27 phospho S78 expression in HeLa cells using 1/250 ab32501.


    This product has been referenced in:

    • Li KC  et al. Reduced expression of HSP27 following HAD-B treatment is associated with Her2 downregulation in NIH:OVCAR-3 human ovarian cancer cells. Mol Med Rep 12:3787-94 (2015). Read more (PubMed: 26044344) »
    • de la Cuesta F  et al. A proteomic focus on the alterations occurring at the human atherosclerotic coronary intima. Mol Cell Proteomics 10:M110.003517 (2011). IHC-Fr ; Human . Read more (PubMed: 21248247) »
    See all 4 Publications for this product

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