Anti-FAS Antibody Prodrug, Protease Activated (h-HFE7A)

CAT#: VS-1025-YC68

The Anti-FAS Antibody Prodrug, Protease Activated (h-HFE7A) is an antibody prodrug comprised of a recombinant human antibody targeting human FAS, linked to a masking peptide that conceals the active antigen-binding site via a protease-cleavable linker. The mask peptide is recombinantly attached to the amino terminus of either the light or heavy chain of the antibody, designed to block access to the antigen-binding site and physically prevent the antibody from binding to FAS protein. Once the masking peptide is cleaved by matrix metalloproteinases (MMPs), the prodrug is activated, allowing the unmasked monoclonal antibody component to bind to FAS effectively. FAS is a death receptor on the cell surface that, when activated by its ligand (FASL), initiates the extrinsic pathway of apoptosis. Many tumor cells develop mechanisms to inactivate or shed FAS, thus rendering them resistant to T-cell-mediated killing and other death signals. Maintaining this resistance is a key survival mechanism for the tumor.

Gene Expression
Figure 1 IF staining of human cell line A-431 Figure 2 IF staining of human cell line U-251 MG Figure 3 Colon Figure 4 Testis Figure 5 RNA cell line category: Cell line enhanced (HDLM-2, Karpas-707)

Specifications

  • Host Animal
  • Human
  • Applications
  • In situ zymography (ISZ), Cytotoxicity assay (Cyt), Functional assay
  • Specificity
  • Human FAS
  • Target
  • FAS
  • Species Reactivity
  • Human
  • Isotype
  • IgG1, kappa
  • Clone
  • h-HFE7A
  • Masking Approach
  • Affinity mask
  • Mask
  • A synthetic peptide
  • Protease Cleavable Linker
  • MMP-cleavable linker
  • Protease Substrate
  • MMPs
  • Purification
  • Protein A purified
  • Buffer
  • PBS, pH 7.4
  • Preservative
  • No preservatives
  • Storage
  • Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles.

Target

  • Introduction
  • Fas cell surface death receptor is a member of the TNF-receptor superfamily. It contains a death domain. It has been shown to play a crucial role in the physiological regulation of programmed cell death and has been implicated in the pathogenesis of various malignancies and diseases of the immune system. The interaction of FAS with its ligand allows the formation of a death-inducing signaling complex that includes Fas-associated death domain protein (FADD), caspase 8, and caspase 10.
  • Alternative Names
  • CD95 Antigen; TNFRSF6; APT1; FAS1; R-125224; h-HFE7A
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