FLIP Antibody (896537) [Unconjugated]

Western blot shows lysates of PANC-1 human pancreatic carcinoma cell line, L-929 mouse fibroblast cell line, and Rat-2 rat embryonic fibroblast cell line. PVDF membrane was probed with 2 µg/mL of Mouse Anti-Human/Mouse/Rat FLIP Monoclonal Antibody (Catalog # MAB8430) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF018). A specific band was detected for FLIP at approximately 55 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

FLIP was detected in immersion fixed paraffin-embedded sections of human pancreatic cancer tissue using Mouse Anti-Human/Mouse/Rat FLIP Monoclonal Antibody (Catalog # MAB8430) at 15 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 cytoplasm of cells in islets. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

• Reactivity: Hu, Mu, Rt
• Applications: WB, IHC
• Clone: 896537
• Clonality: Monoclonal
• Host: Mouse
• Conjugate: Unconjugated

FLIP Antibody (896537) [Unconjugated] Summary

• Immunogen: E. coli-derived recombinant human FLIP
  Met1-Asn200
  Accession # O15519
• Specificity: Detects human FLIP in direct ELISAs and human, mouse, and rat FLIP in Western blots.
• Source: N/A
• Isotype: IgG1
• Clonality: Monoclonal
• Host: Mouse
• Gene: CFLAR
• Purity Statement: Protein A or G purified from hybridoma culture supernatant

Applications/Dilutions

• Dilutions:
  • Immunohistochemistry 8-25 ug/mL
  • Western Blot 2 ug/mL

Packaging, Storage & Formulations

• 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.
• Buffer: 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.
• Preservative: No Preservative
• Reconstitution Instructions: Reconstitute at 0.5 mg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for FLIP Antibody (896537) [Unconjugated]

• CASHFADD-like antiapoptotic molecule 1
• CASP8 and FADD-like apoptosis regulator
• CASP8AP1
• Caspase homolog
• Caspase-eight-related protein
• Caspase-like apoptosis regulatory protein
• caspase-related inducer of apoptosis
• CASPER
• CasperFLAME1
• Cellular FLICE-like inhibitory protein
• CFLAR
• c-FLIPR
• c-FLIPS
• CLARPMACH-related inducer of toxicity
• FADD-like apoptotic molecule
• FLAME
• FLAME-1
• FLIP
• I-FLICE
• I-FLICEMRITc-FLIPFLIPc-FLIPL
• Inhibitor of FLICE
• usurpin beta
• Usurpin

Background

FLIP (Flice-Like Inhibitory Protein), also known as CFLAR (CASP8 and FADD-Like Apoptosis Regulator), I-FLICE, CASPER, and FLAME-1, is an apoptosis inhibitory protein with architecture similar to that of Caspases-8 and -10. Both of the major FLIP isoforms, the 55 kDa Long (L) and the 27 kDa Short (S), contain two death effector domains (DED).  FLIP(L) has a C-terminal Caspase-like protease domain which lacks both a catalytic active site and residues that form a substrate-binding pocket. FLIP(S) and FLIP(L) interact with the adaptor molecule FADD, and potently inhibit apoptosis initiated by Fas Ligand/TNF signaling pathways.  Over amino acids 1-200, human FLIP shares 75% sequence identity with mouse and rat FLIP.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Publications for FLIP Antibody (MAB8430)(2)

Publications using MAB8430

• Wu G, Xu Y, Schultz RD et al. LILRB3 supports acute myeloid leukemia development and regulates T-cell antitumor immune responses through the TRAF2-cFLIP-NF-?B signaling axis Nature Cancer 2021-11-11 [PMID: 35122056]
• A Fiore, S Ugel, F De Sanctis, S Sandri, G Fracasso, R Trovato, S Sartoris, S Solito, S Mandruzzat, F Vascotto, KL Hippen, G Mondanelli, U Grohmann, G Piro, C Carbone, D Melisi, RT Lawlor, A Scarpa, A Lamolinara, M Iezzi, M Fassan, S Bicciato, BR Blazar, U Sahin, PJ Murray, V Bronte Induction of immunosuppressive functions and NF-?B by FLIP in monocytes Nat Commun, 2018-12-05;9(1):5193. 2018-12-05 [PMID: 30518925] (ICC, Mouse)

Bioinformatics

• Gene Symbol: CFLAR
• Uniprot:
  • O15519()