Recombinant Anti-Brk/PTK6 antibody [EPR21051-68] - BSA and Azide free (ab234100)


  • Product name

    Anti-Brk/PTK6 antibody [EPR21051-68] - BSA and Azide free
    See all Brk/PTK6 primary antibodies
  • Description

    Rabbit monoclonal [EPR21051-68] to Brk/PTK6 - BSA and Azide free
  • Host species

  • Tested applications

    Suitable for: WB, IP, Flow Cytmore details
  • Species reactivity

    Reacts with: Human
  • Immunogen

    Recombinant fragment within Human Brk/PTK6 aa 1-200. The exact sequence is proprietary.
    Database link: Q13882

  • Positive control

    • Flow Cytometry: T-47D cells.
  • General notes

    ab234100 is the carrier-free version of ab233391 This format is designed for use in antibody labeling, including fluorochromes, metal isotopes, oligonucleotides, enzymes.


    Our carrier-free formats are supplied in a buffer free of BSA, sodium azide and glycerol for higher conjugation efficiency.

    Use our conjugation kits  for antibody conjugates that are ready-to-use in as little as 20 minutes with <1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

    Ab234100 is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm.

    Maxpar® is a trademark of Fluidigm Canada Inc.

    This product was previously labelled as Brk

    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 ab234100 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 at an assay dependent concentration. Detects a band of approximately 48 kDa (predicted molecular weight: 52 kDa).
IP Use at an assay dependent concentration.
Flow Cyt Use at an assay dependent concentration.


  • Function

    Phosphorylates KHDRBS1, KHDRBS2, KHDRBS3 and STAP2/BKS. May function as an intracellular signal transducer in epithelial tissues. Overexpression in mammary cells leads to mitogenically sensitization to EGF, and results in a partially transformed phenotype. Its presence in the nucleus appears to be linked to suppression of tumor progression.
  • Tissue specificity

    Epithelia-specific. Very high level in colon and high levels in small intestine and prostate, and low levels in some fetal tissues. Expressed at low level in some breast tumors, but not in normal breast. Also found in melanocytes. Not expressed in heart, brain, placenta, lung, liver, skeletal muscle, kidney and pancreas.
  • Sequence similarities

    Belongs to the protein kinase superfamily. Tyr protein kinase family. BRK/PTK6/SIK subfamily.
    Contains 1 protein kinase domain.
    Contains 1 SH2 domain.
    Contains 1 SH3 domain.
  • Post-translational

    Autophosphorylated. The phosphorylation of Tyr-447 may lead to the autoinhibition of the enzyme.
  • Cellular localization

    Cytoplasm. Nucleus. Colocalizes with KHDRBS1, KHDRBS2 or KHDRBS3, within the nucleus. In secretory epithelial cells from prostate adenocarcinoma, nuclear localization is higher in low-grade and lower in high-grade regions of the tumors.
  • Information by UniProt
  • Database links

  • Alternative names

    • Breast tumor kinase antibody
    • Breast tumour kinase antibody
    • Protein tyrosine kinase 6 antibody
    • Protein-tyrosine kinase 6 antibody
    • Ptk6 antibody
    • PTK6_HUMAN antibody
    • Tyrosine protein kinase BRK antibody
    • Tyrosine-protein kinase BRK antibody
    see all


  • Brk/PTK6 was immunoprecipitated from 0.35 mg of T-47D (human ductal breast epithelial tumor cell line) whole cell lysate with ab233391 at 1/30 dilution. Western blot was performed from the immunoprecipitate using ab233391 at 1/1000 dilution. VeriBlot for IP Detection Reagent (HRP) (ab131366), was used for detection at 1/5000 dilution.

    Lane 1: T-47D whole cell lysate 10 µg (Input). 

    Lane 2: ab233391 IP in T-47D whole cell lysate. 

    Lane 3: Rabbit monoclonal IgG (ab172730) instead of ab233391 in T-47D whole cell lysate.

    Blocking and dilution buffer and concentration: 5% NFDM/TBST.

    Exposure time: 3 minutes.

    This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab233391).

  • Flow cytometric analysis of 4% paraformaldehyde-fixed, 90% methanol-permeabilized T-47D (human ductal breast epithelial tumor cell line) cell line labeling Brk/PTK6 with ab233391 at 1/60 dilution (red) compared with a Rabbit IgG, monoclonal [EPR25A] - Isotype Control (ab172730) (black) and an unlabeled control (cells without incubation with primary antibody and secondary antibody) (blue). Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) (ab150077) at 1/2000 dilution was used as the secondary antibody.

    This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab233391).


ab234100 has not yet been referenced specifically in any publications.

Customer reviews and Q&As

There are currently no Customer reviews or Questions for ab234100.
Please use the links above to contact us or submit feedback about this product.

For licensing inquiries, please contact

Sign up