Recombinant Anti-proCathepsin D antibody [EPR3054] (ab134169)


  • Product name

    Anti-proCathepsin D antibody [EPR3054]
    See all proCathepsin D primary antibodies
  • Description

    Rabbit monoclonal [EPR3054] to proCathepsin D
  • Host species

  • Tested applications

    Suitable for: WB, IHC-P, Flow Cyt, ICC/IFmore details
  • Species reactivity

    Reacts with: Human
  • Immunogen

    Synthetic peptide within Human proCathepsin D aa 1-100. The exact sequence is proprietary.

  • Positive control

    • Human breast ductal infiltrating carcinoma tissue; A431, MCF7 and SKBR3 cell lysates.
  • General notes

    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.

    We are constantly working hard to ensure we provide our customers with best in class antibodies. As a result of this work we are pleased to now offer this antibody in purified format. We are in the process of updating our datasheets. The purified format is designated 'PUR' on our product labels. If you have any questions regarding this update, please contact our Scientific Support team.

    This product is a recombinant rabbit monoclonal antibody.



Our Abpromise guarantee covers the use of ab134169 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 1/1000 - 1/10000. Predicted molecular weight: 44 kDa.
IHC-P 1/100 - 1/250. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
Flow Cyt Use at an assay dependent concentration.
ICC/IF 1/100.


  • Function

    Acid protease active in intracellular protein breakdown. Involved in the pathogenesis of several diseases such as breast cancer and possibly Alzheimer disease.
  • Involvement in disease

    Defects in CTSD are the cause of neuronal ceroid lipofuscinosis type 10 (CLN10) [MIM:610127]; also known as neuronal ceroid lipofuscinosis due to cathepsin D deficiency. A form of neuronal ceroid lipofuscinosis with onset at birth or early childhood. Neuronal ceroid lipofuscinoses are progressive neurodegenerative, lysosomal storage diseases characterized by intracellular accumulation of autofluorescent liposomal material, and clinically by seizures, dementia, visual loss, and/or cerebral atrophy.
  • Sequence similarities

    Belongs to the peptidase A1 family.
  • Cellular localization

    Lysosome. Melanosome. Identified by mass spectrometry in melanosome fractions from stage I to stage IV.
  • Information by UniProt
  • Database links

  • Alternative names

    • CATD_HUMAN antibody
    • cathepsin D (lysosomal aspartyl protease) antibody
    • Cathepsin D antibody
    • Cathepsin D heavy chain antibody
    • Ceroid-lipofuscinosis, neuronal 10 antibody
    • CLN10 antibody
    • CPSD antibody
    • ctsd antibody
    • EC 3.4.23 antibody
    • EC antibody
    • Lysosomal aspartyl peptidase antibody
    • Lysosomal aspartyl protease antibody
    • MGC2311 antibody
    • OTTHUMP00000042282 antibody
    • OTTHUMP00000196039 antibody
    • OTTHUMP00000198692 antibody
    see all


  • All lanes : Anti-proCathepsin D antibody [EPR3054] (ab134169) at 1/2000 dilution (purified)

    Lane 1 : MCF-7 cell lysate
    Lane 2 : A431 cell lysate
    Lane 3 : SKBR-3 cell lysate

    Lysates/proteins at 20 µg per lane.

    All lanes : HRP goat anti-rabbit (H+L) at 1/1000 dilution

    Predicted band size: 44 kDa
    Observed band size: 44 kDa

    Blocking buffer: 5% NFDM/TBST

    Dilution buffer: 5% NFDM/TBST

  • Flow Cytometry analysis of A431 (human epidermoid carcinoma) cells labeling proCathepsin D with purified ab134169 at 1/100 dilution (10ug/ml) (red). Cells were fixed with 4% paraformaldehyde and permeabilised with 90% methanol. A Goat anti rabbit IgG (Alexa Fluor® 488)(1/2000 dilution) was used as the secondary antibody. Rabbit monoclonal IgG (Black) was used as the isotype control, cells without incubation with primary antibody and secondary antibody (Blue) were used as the unlabeled control.

  • Immunohistochemical staining of paraffin embedded human breast carcinoma with purified ab134169 at a working dilution of 1 in 50. The secondary antibody used is a HRP polymer for rabbit IgG. The sample is counter-stained with hematoxylin. Antigen retrieval was perfomed using Tris-EDTA buffer, pH 9.0. PBS was used instead of the primary antibody as the negative control, and is shown in the inset.

  • Immunofluorescence staining of MCF7 cells with purified ab134169 at a working dilution of 1 in 50, counter-stained with DAPI. The secondary antibody was Alexa Fluor® 488 goat anti rabbit (ab150077), used at a dilution of 1 in 500. The cells were fixed in 4% PFA and permeabilized using 0.1% Triton X 100. The negative control is shown in bottom right hand panel - for the negative control, purified ab134169 was used at a dilution of 1/200 followed by an Alexa Fluor® 594 goat anti-mouse antibody at a dilution of 1/500.

  • All lanes : Anti-proCathepsin D antibody [EPR3054] (ab134169) at 1/2000 dilution (unpurified)

    Lane 1 : MCF7 cell lysate
    Lane 2 : A431 cell lysate
    Lane 3 : SKBR3 cell lysate

    Lysates/proteins at 10 µg per lane.

    All lanes : Standard HRP labelled goat anti-rabbit at 1/2000 dilution

    Developed using the ECL technique.

    Predicted band size: 44 kDa

  • Immunohistochemical analysis of paraffin-embedded Human breast ductal infiltrating carcinoma tissue, staining proCathepsin D using unpurified ab134169 at a 1/250 dilution.

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

  • Equilibrium disassociation constant (KD)
    Learn more about KD

    Click here to learn more about KD


ab134169 has not yet been referenced specifically in any publications.

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