Recombinant protein within Human FAP1 aa 1-160 / 760.
Species Reactivity
Human, Mouse, Rat
Validated Applications
WB, IHC-P, IHC-Fr
Target Molecular Weight
Predicted band size: 88 kDa
Positive Control
U-87 MG cell lysates, human pancreatic carcinoma, human colon cancer tissue.
Conjugation
unconjugated
Clone Number
JA56-11
Product Features
Form
Liquid
Concentration
Lot Concentration Lookup
Storage Instructions
Store at 2-8℃. Avoid freeze.
Storage Buffer
1*PBS (pH7.4).
Isotype
IgG
Purification Method
Protein A affinity purified.
Application Dilution
Target
Function
FAP (fibroblast activation protein) is a cell surface glycoprotein and serine protease that is expressed primarily in fetal mesenchymal tissues and epithelial cancer fibroblasts. In cancer, FAP functions to promote cellular proliferation. In embryonic development, FAP functions to remodel developing tissues. FAP acts as an integral membrane gelatinase composed of N-glycosylated proteolytically inactive subunits. FAP expression on chondrocyte membranes is upregulated by the combination of the cytokines IL-1 and OSM and has been shown to increase in osteoarthritic patients. This expression is co-localized with MMP-1and MMP-13 as well as CD44 (variants v3 and v7/8). Mice that lack all copies of the FAP gene have been found to be fertile and to have developmental defects or change in cancer susceptibility.
Background References
1. Jia, B. et al. 2016. GPR30 Promotes Prostate Stromal Cell Activation via Suppression of ERα Expression and Its Downstream Signaling Pathway. Endocrinology. 157: 3023-35.
2. Knopf, JD. et al. 2015. The stromal cell-surface protease fibroblast activation protein-α localizes to lipid rafts and is recruited to invadopodia. Biochim. Biophys. Acta. 1853: 2515-25.
Sequence Similarity
Belongs to the peptidase S9B family.
Tissue Specificity
Expressed in adipose tissue. Expressed in the dermal fibroblasts in the fetal skin. Expressed in the granulation tissue of healing wounds and on reactive stromal fibroblast in epithelial cancers. Expressed in activated fibroblast-like synoviocytes from inflamed synovial tissues. Expressed in activated hepatic stellate cells (HSC) and myofibroblasts from cirrhotic liver, but not detected in normal liver. Expressed in glioma cells (at protein level). Expressed in glioblastomas and glioma cells. Isoform 1 and isoform 2 are expressed in melanoma, carcinoma and fibroblast cell lines.
This data was developed using ET1704-23, the same antibody clone in a different buffer formulation. Western blot analysis of FAP on U-87 MG cell lysates with Rabbit anti-FAP antibody (ET1704-23) at 1/1,000 dilution.
Lysates/proteins at 20 µg/Lane. Predicted band size: 88 kDa Observed band size: 100 kDa Exposure time: 5 minutes; ECL: K1801; 4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (ET1704-23) at 1/1,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
This data was developed using ET1704-23, the same antibody clone in a different buffer formulation. Immunohistochemical analysis of paraffin-embedded human colon cancer tissue with Rabbit anti-FAP antibody (ET1704-23) at 1/1,000 dilution.
The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ET1704-23) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
This data was developed using ET1704-23, the same antibody clone in a different buffer formulation. Immunofluorescence analysis of frozen mouse colon tissue with Rabbit anti-FAP antibody (ET1704-23) at 1/200 dilution.
The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for about 2 minutes in microwave oven. The tissues were blocked in 10% negative goat serum for 1 hour at room temperature, washed with PBS, and then probed with the primary antibody (ET1704-23, green) at 1/200 dilution overnight at 4 ℃, washed with PBS. Goat Anti-Rabbit IgG H&L (iFluor™ 488, HA1121) was used as the secondary antibody at 1/1,000 dilution. Nuclei were counterstained with DAPI (blue).
This data was developed using ET1704-23, the same antibody clone in a different buffer formulation. Immunofluorescence analysis of frozen rat colon tissue with Rabbit anti-FAP antibody (ET1704-23) at 1/200 dilution.
The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for about 2 minutes in microwave oven. The tissues were blocked in 10% negative goat serum for 1 hour at room temperature, washed with PBS, and then probed with the primary antibody (ET1704-23, green) at 1/200 dilution overnight at 4 ℃, washed with PBS. Goat Anti-Rabbit IgG H&L (iFluor™ 488, HA1121) was used as the secondary antibody at 1/1,000 dilution. Nuclei were counterstained with DAPI (blue).
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