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>   home   >   Products   >   Primary Antibodies   >   Signal Transduction   >   GCDFP-15 Antibody   

GCDFP-15 Antibody

Rabbit Monoclonal IgG

  • WB - GCDFP-15 Antibody AJ1317b
    Western blot analysis on (A) T47-D and (B) breast cancer cell lysates using anti-GCDFP-15 RabMAb (Cat. #AJ1317b).
  • IHC - GCDFP-15 Antibody AJ1317b
    Immunohistochemical staining of paraffin-embedded human breast carcinoma tissue using anti-GCDFP-15 RabMAb (Cat. #AJ1317b).
Product Information
  • Applications Legend:
  • WB=Western Blot
  • IHC=Immunohistochemistry
  • IHC-P=Immunohistochemistry (Paraffin-embedded Sections)
  • IHC-F=Immunohistochemistry (Frozen Sections)
  • IF=Immunofluorescence
  • FC=Flow Cytopmetry
  • IC=Immunochemistry
  • ICC=Immunocytochemistry
  • IP=Immunoprecipitation
  • DB=Dot Blot
  • CHIP=Chromatin Immunoprecipitation
  • FA=Fluorescence Assay
  • IEM=Immunoelectronmicroscopy
  • EIA=Enzyme Immunoassay
Primary Accession P12273
Reactivity Human
Host Rabbit
Clonality Monoclonal
Clone Names EPR1582
Calculated MW 16572 Da
Gene ID 5304
Other Names Prolactin-inducible protein, Gross cystic disease fluid protein 15, GCDFP-15, Prolactin-induced protein, Secretory actin-binding protein, SABP, gp17, PIP, GCDFP15, GPIP4
Target/Specificity A synthetic peptide corresponding to residues in human GCDFP-15 was used as an immunogen.
Dilution WB~~1:5000
Format 50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.
StorageMaintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.
PrecautionsGCDFP-15 Antibody is for research use only and not for use in diagnostic or therapeutic procedures.
Protein Information
Name PIP
Synonyms GCDFP15, GPIP4
Cellular Location Secreted.
Tissue Location Expressed in pathological conditions of the mammary gland and in several exocrine tissues, such as the lacrimal, salivary, and sweat glands
Research Areas
Citations (0)

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Gross cystic disease fluid protein (GCDFP-15), also called prolactin-inducible protein (PIP), is a single polypeptide chain with a versatile function in human reproductive and immunological systems (1). It is unique because of its small size (1). GCDFP-15 binds to CD4, exerts a potent inhibition on T lymphocyte apoptosis mediated by CD4/T-cell receptor (TCR) activation, and carries a fibronectin-specific aspartyl protease activity (2). Its ability to bind with other molecules like immunoglobulin G (IgG), actin, and zinc alpha2-glycoprotein (ZAG) shows its various biological activities (1). GCDFP-15 is expressed in benign and malignant human breast tumors and in normal exocrine organs such as sweat, salivary and lacrimal glands (1). It is up regulated by prolactin and androgens, while it is down regulated by estrogen (1). Due to its expression in breast cancer, GCDFP-15 is used as a prognostic biomarker (3, 4).


1. Hassan et al. Cell Mol Life Sci. 66(3):447-59, 2009. 2. Debily et al. PLoS One.;4(3):e4696, 2009. 3. Yan et al. Diagn Cytopathol. 37(7):475-8, 2009. 4. Wang et al. Appl Immunohistochem Mol Morphol. 2009.

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Cat# AJ1317b
(40 western blots)
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