Human Fibroblast Activation Protein  alpha /FAP Antibody

(2 citations)   
  • Species Reactivity
    Human
  • Specificity
    Detects human Fibroblast Activation Protein alpha /FAP in direct ELISAs and Western blots.
  • Source
    Polyclonal Sheep IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    S. frugiperda insect ovarian cell line Sf 21-derived recombinant human Fibroblast Activation Protein alpha /FAP
    Leu26-Asp760
    Accession # Q12884
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
  • Endotoxin Level
    <0.10 EU per 1 μg of the antibody by the LAL method.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
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.
Data Examples
Detection of Human Fibroblast Activation Protein  alpha /FAP by Western Blot. Western blot shows lysates of WI‑38 human lung fibroblast cell line. PVDF membrane was probed with 0.5 µg/mL of Sheep Anti-Human Fibroblast Activation Protein  alpha /FAP Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3715) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for Fibroblast Activation Protein  alpha /FAP at approximately 97 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Immunohistochemistry
Fibroblast Activation Protein  alpha /FAP in Human Squamous Cell Carcinoma. Fibroblast Activation Protein  alpha /FAP was detected in immersion fixed paraffin-embedded sections of human squamous cell carcinoma using Sheep Anti-Human Fibroblast Activation Protein  alpha /FAP Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3715) at 15 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Sheep HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS019) and counterstained with hematoxylin (blue). Specific staining was localized to connective tissue. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Immunohistochemistry
Fibroblast Activation Protein  alpha /FAP in Human Basal Cell Carcinoma. Fibroblast Activation Protein  alpha /FAP was detected in immersion fixed paraffin-embedded sections of human basal cell carcinoma using Sheep Anti-Human Fibroblast Activation Protein  alpha /FAP Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3715) at 10 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Sheep HRP-DAB Cell & Tissue Staining Kit  (brown; Catalog # CTS019) and counterstained with hematoxylin (blue). Specific staining was localized to cytoplasm. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 mg/mL in sterile PBS.
  • Shipping
    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: Fibroblast Activation Protein alpha/FAP

FAP (also known as seprase) is a Type II transmembrane serine protease that is structurally related to dipeptidyl peptidase IV (1). FAP has substrate specificity similar to dipeptidyl peptidase IV, which is specific for N-terminal Xaa-Pro sequences, but FAP is also an endopeptidase able to degrade gelatin and Type I collagen (2). The enzymatically active form of FAP is a dimer (3). FAP has a restricted tissue distribution. It is not detectable in normal tissues or resting fibroblasts, but is highly expressed on reactive stromal fibroblasts in epithelial cancers (4), in granulation tissue during wound healing, and in bone and soft tissue sarcomas (5). Because of its expression patterns and enzymatic activities, FAP is believed to play roles in tumor invasion, tissue remodeling, and wound repair.

  • References:
    1. Scanlan, M.J. et al. (1994) Proc. Natl. Acad. Sci. USA 91:5657.
    2. Park, J.E. et al. (1999) J. Biol. Chem. 274:36505.
    3. Pineiro-Sanchez, M.L. et al. (1997) J. Biol. Chem. 272:7595.
    4. Garin-Chesa, P. et al. (1990) Proc. Natl. Acad. Sci. USA 87:7235.
    5. Rettig, W.J. et al. (1988) Proc. Natl. Acad. Sci. USA 85:3110.
  • Entrez Gene IDs:
    2191 (Human); 14089 (Mouse)
  • Alternate Names:
    170 kDa melanoma membrane-bound gelatinase; DKFZp686G13158; DPPIV; EC 3.4.21.-; FAP; FAPA; Fibroblast Activation Protein alpha; fibroblast activation protein, alpha; Integral membrane serine protease; Seprase; vibronectin
Related Research Areas
Citations:

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.

2 Citations: Showing 1 - 2
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Applications
Sample Type
  1. A synthetic urinary probe-coated nanoparticles sensitive to fibroblast activation protein ? for solid tumor diagnosis
    Authors: X Feng, Q Wang, Y Liao, X Zhou, Y Wang, W Liu, G Zhang
    Int J Nanomedicine, 2017;12(0):5359-5372.
    Species: Human
    Sample Type: Cell Lysates
    Application: WB
  2. Fibroblast Activation Protein (FAP) Accelerates Collagen Degradation and Clearance from Lungs in Mice
    Authors: MH Fan, Q Zhu, HH Li, HJ Ra, S Majumdar, DL Gulick, JA Jerome, DH Madsen, M Christofid, DW Speicher, WW Bachovchin, C Feghali-Bo, E Puré
    J. Biol. Chem., 2016;291(15):8070-89.
    Species: Mouse
    Sample Type: Tissue Homogenates
    Application: IP
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