Human Kallikrein 3/PSA Antibody

Catalog # Availability Size / Price Qty
Detection of Human Kallikrein 3/PSA by Western Blot.
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Product Details
Citations (1)
Supplemental Products
Reviews (1)

Human Kallikrein 3/PSA Antibody Summary

Species Reactivity
Detects human Kallikrein 3/PSA in direct ELISAs and Western blots. In direct ELISAs, no cross-reactivity with recombinant human Kallikrein 5 or 11 is observed.
Monoclonal Mouse IgG2B Clone # 181823
Protein A or G purified from hybridoma culture supernatant
Mouse myeloma cell line NS0-derived recombinant human Kallikrein 3/PSA
Accession # P07288
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.


Recommended Concentration
Western Blot
2 µg/mL
See below
8-25 µg/mL
See below
25 µg/mL
Conditioned cell culture medium spiked with Recombinant Human Kallikrein 3/PSA (Catalog # 1344-SE), see our available Western blot detection antibodies
8-25 µg/mL
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot Detection of Human Kallikrein 3/PSA antibody by Western Blot. View Larger

Detection of Human Kallikrein 3/PSA by Western Blot. Western blot shows lysates of human prostate tissue. PVDF membrane was probed with 2 µg/mL of Mouse Anti-Human Kallikrein 3/PSA Monoclonal Antibody (Catalog # MAB1344) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF018). A specific band was detected for Kallikrein 3/PSA at approximately 30 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Immunocytochemistry Kallikrein 3/PSA antibody in LNCaP and MCF-7 Human Cell Lines by Immunocytochemistry (ICC). View Larger

Kallikrein 3/PSA in LNCaP and MCF-7 Human Cell Lines. Kallikrein 3/PSA was detected in immersion fixed LNCaP human prostate cancer cell line (positive control, left panel) and MCF-7 human breast cancer cell line (negative control, right panel) using Mouse Anti-Human Kallikrein 3/PSA Monoclonal Antibody (Catalog # MAB1344) at 8 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; Catalog # NL007) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm in LNCaP cells. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

Immunohistochemistry Kallikrein 3/PSA antibody in Prostate Cancer by Immunohistochemistry (IHC-P). View Larger

Kallikrein 3/PSA in Prostate Cancer. Kallikrein 3/PSA was detected in immersion fixed paraffin-embedded sections of prostate cancer tissue using Mouse Anti-Human Kallikrein 3/PSA Monoclonal Antibody (Catalog # MAB1344) at 1.7 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Mouse HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS002) and counterstained with hematoxylin (blue). Specific staining was localized to the apical plasma membrane. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Preparation and Storage

Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Kallikrein 3/PSA

Kallikrein 3, commonly known as prostate specific antigen (PSA), is a serine protease of the human tissue Kallikrein gene family (1). PSA is synthesized in the ductal and acinar epithelium of the prostate gland and secreted into the seminal plasma in high concentrations (0.5-2 g/L) (2). A small portion of PSA “leaks” into the systemic circulation, the levels of which increase significantly (30-fold) from prostate cancer tissue than normal prostate tissue (3). PSA has become a well established tumor marker that aids the diagnosis, staging, and follow up of prostate cancer. The deduced amino acid sequence of human PSA consists of a signal peptide, a short pro region and a mature/active enzyme. The pro-enzyme is activated, possibly by active Kallikreins 2, 4 or 15 in vivo (4). Recombinant human PSA is activated by thermolysin, a zinc protease. The active PSA cleaves several tyrosyl peptide bonds in semenogelins I and II, which are the major gel-forming proteins produced by the seminal vesicles (5). Several inhibitors including serpin A3/ alpha 1-antichymotrypsin (ACT) and alpha 2-macroglobulin are known to form complexes with PSA.

  1. Yousef, G.M. and E.P. Diamandis (2001) Endocrine Rev. 22:184.
  2. Ward, A.M. et al. (2001) Ann. Clin. Biochem. 38:633.
  3. Jain, S. et al. (2002) Postgrad. Med. J. 78:646.
  4. Lilja H. (2003) Urology 62:270.
  5. Takayama, T.K. et al. (1997) J. Biol. Chem. 272:21582.
Entrez Gene IDs
354 (Human)
Alternate Names
APS seminin; EC 3.4.21; EC; Gamma-seminoprotein; hK3; Kallikrein 3; kallikrein 3, (prostate specific antigen); Kallikrein-3; kallikrein-related peptidase 3; KLK2A1; KLK3; P-30 antigen; prostate specific antigen; prostate-specific antigen; PSA semenogelase; PSA; Semenogelase; Seminin

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Citation for Human Kallikrein 3/PSA Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. Development and validation of sandwich ELISA microarrays with minimal assay interference.
    Authors: Gonzalez RM, Seurynck-Servoss SL, Crowley SA
    J. Proteome Res., 2008-04-19;7(6):2406-14.
    Species: Human
    Sample Types: Serum
    Applications: ELISA Microarray Development


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Human Kallikrein 3/PSA Antibody
By Anonymous on 03/11/2022
Application: IHC Sample Tested: Prostate cancer Species: Human