Anti-Prostate Secretory Protein/PSP antibody [YPSP-1] (ab19070)


  • Product name
    Anti-Prostate Secretory Protein/PSP antibody [YPSP-1]
    See all Prostate Secretory Protein/PSP primary antibodies
  • Description
    Mouse monoclonal [YPSP-1] to Prostate Secretory Protein/PSP
  • Host species
  • Specificity
    Does not react with a variety of human normal tissues.
  • Tested applications
    Suitable for: WB, ELISA, ICC/IFmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Full length protein (purified) (Human).

  • Positive control
    • Reactive with PSP or human prostate epithelial cells.
  • General notes

    Abcam is committed to meeting high standards of ethical manufacturing and as such, we will be discontinuing this product, which has been generated by the ascites method, within the next year. We are sorry for any inconvenience this may cause. If you would like help finding an alternative product, please do not hesitate to contact our scientific support team.



Our Abpromise guarantee covers the use of ab19070 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
  • Application notes
    ELISA: Use at an assay dependent dilution.
    ICC/IF: Use at a dilution of 1/100.
    WB: Use at an assay dependent dilution. Predicted molecular weight: 14 kDa.

    Not yet tested in other applications.
    Optimal dilutions/concentrations should be determined by the end user.
  • Target

    • Tissue specificity
      Strongly expressed in prostate, liver, kidney, breast and penis. Also expressed in pancreas, esophagus, stomach, deodenum, colon, trachea, lung, salivary glands and fallopian tube. PSP94 is expressed in lung and breast, whereas PSP57 is found in kidney and bladder.
    • Involvement in disease
      Defects in MSMB are the cause of susceptibility to prostate cancer hereditary type 13 (HPC13) [MIM:611928]. It is a condition associated with familial predisposition to cancer of the prostate. Most prostate cancers are adenocarcinomas that develop in the acini of the prostatic ducts. Other rare histopathologic types of prostate cancer that occur in approximately 5% of patients include small cell carcinoma, mucinous carcinoma, prostatic ductal carcinoma, transitional cell carcinoma, squamous cell carcinoma, basal cell carcinoma, adenoid cystic carcinoma (basaloid), signet-ring cell carcinoma and neuroendocrine carcinoma.
    • Sequence similarities
      Belongs to the beta-microseminoprotein family.
    • Cellular localization
      Secreted. Sperm surface.
    • Information by UniProt
    • Database links
    • Alternative names
      • Beta microseminoprotein [Precursor] antibody
      • Beta-microseminoprotein antibody
      • HPC 13 antibody
      • HPC13 antibody
      • IGBF antibody
      • Immunoglobulin binding factor antibody
      • Immunoglobulin-binding factor antibody
      • microseminoprotein beta antibody
      • Msmb antibody
      • MSMB_HUMAN antibody
      • MSP antibody
      • MSPB antibody
      • PN 44 antibody
      • PN44 antibody
      • Prostate secreted seminal plasma protein antibody
      • Prostate secretory protein of 94 amino acids antibody
      • Prostate secretory protein PSP94 antibody
      • PRPS antibody
      • PRSP antibody
      • PSP 57 antibody
      • PSP antibody
      • PSP-94 antibody
      • PSP57 antibody
      • PSP94 antibody
      • Seminal plasma beta inhibin antibody
      • Seminal plasma beta-inhibin antibody
      see all


    • Anti-Prostate Secretory Protein/PSP antibody [YPSP-1] (ab19070) at 1 µg/ml + Prostate Tumor Lysate Tissue Lysate at 10 µg

      Goat Anti-Mouse IgG H&L (HRP) preadsorbed (ab97040) at 1/5000 dilution

      Developed using the ECL technique.

      Performed under reducing conditions.

      Predicted band size: 14 kDa
      Observed band size: 14 kDa
      Additional bands at: 45 kDa, 54 kDa, 74 kDa. We are unsure as to the identity of these extra bands.

      Exposure time: 8 minutes


    This product has been referenced in:
    • Sjöblom L  et al. Microseminoprotein-Beta Expression in Different Stages of Prostate Cancer. PLoS One 11:e0150241 (2016). IHC . Read more (PubMed: 26939004) »
    • Whitaker HC  et al. The potential value of microseminoprotein-beta as a prostate cancer biomarker and therapeutic target. Prostate 70:333-40 (2010). Read more (PubMed: 19790236) »

    See all 2 Publications for this product

    Customer reviews and Q&As

    Abcam guarantees this product to work in the species/application used in this Abreview.
    Immunocytochemistry/ Immunofluorescence
    Human Cell (LNCaP Prostate cell line)
    LNCaP Prostate cell line
    Yes - 0.1% Triton X 100
    Blocking step
    Fish Gelatin as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 1% · Temperature: RT°C

    Abcam user community

    Verified customer

    Submitted Apr 01 2008

    The originator of this antibody was able to provide the following information regarding the antibody's use in ELISA. The immunogen was prepared from serum (for the preparation method, please refer to: Int. J. Cancer (1990) 46:39-49) and the antibody wa...

    Read More

    Thank you for your enquiry and patience. I'm trying to obtain more information from the originator of this product and will let you know when I do. I did a search and did not find a commercial source for purified PSP. Also recommended as a positive con...

    Read More


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