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Human/Mouse FLIP Antibody

R&D Systems, part of Bio-Techne | Catalog # AF821

R&D Systems, part of Bio-Techne
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AF821
AF821-SP

Key Product Details

Species Reactivity

Validated:

Human, Mouse

Cited:

Human, Mouse, Porcine

Applications

Validated:

Western Blot

Cited:

Flow Cytometry, Immunocytochemistry, Immunohistochemistry, Western Blot

Label

Unconjugated

Antibody Source

Polyclonal Rabbit IgG

Product Specifications

Immunogen

KLH-coupled mouse FLIP synthetic peptide
LKQGRRRPLVDLHVELMDKC

Specificity

Detects human and mouse FLIP in Western blots.

Clonality

Polyclonal

Host

Rabbit

Isotype

IgG

Scientific Data Images for Human/Mouse FLIP Antibody

Detection of Human/Mouse FLIP antibody by Western Blot.

Detection of Human/Mouse FLIP by Western Blot.

Western blot shows lysates of WS-1 human fetal skin fibroblast cell line and L-929 mouse fibroblast cell line. PVDF membrane was probed with 1 µg/mL of Rabbit Anti-Human/Mouse FLIP Antigen Affinity-purified Polyclonal Antibody (Catalog # AF821) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for FLIP at approximately 56 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 2.
Detection of Mouse FLIP by Western Blot

Detection of Mouse FLIP by Western Blot

TNF alpha and CHX trigger an apoptotic response in cFlip knockdown 17EM15 cells and ex vivo cultured mouse lens capsular bag by activating caspase-8, caspase-9, and caspase-3.A cFlip knocking down in 17EM15 mouse LECs determined by immunoblot-assay. B The semi-quantitative densitometric measurement of 17EM15 cFlip knocking down from immunoblot-assay. C cFlip knocking down in ex vivo cultured mouse lens capsular bags. D The semi-quantitative densitometric measurement of cFlip knocking down mouse lens capsular bags from immunoblot-assay. E Pro-caspase-8, cleaved caspase-8, pro-caspase-3, and cleaved caspase-3 in cFlip knockdown and scrambled shRNA control (SC) 17EM15 cells with and without 30 ng/ml TNF alpha and 10μg/ml CHX stimulation for 7 h. F Pro-caspase-8, cleaved caspase-8, pro-caspase-3, and cleaved caspase-3 in cFlip knockdown and scrambled shRNA control (SC) ex vivo cultured mouse lens capsular bags with and without 60 ng/ml TNF alpha and 10 μg/ml CHX treatment for 24 h. The cFlip KD 17EM15 treated cell lysate was used as a positive control. Only 1/10th amount of protein relative to capsular bag lysate was loaded. One-way ANOVA was used to compare between groups, and only p < 0.05 is considered significant. *<0.05, **<0.01, ***<0.001, ****<0.0001. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/33837174), licensed under a CC-BY license. Not internally tested by R&D Systems.
Detection of Mouse FLIP by Western Blot

Detection of Mouse FLIP by Western Blot

cFLIP is highly expressed in FHL124 cells and also significantly upregulated after TNF alpha stimulation.A Anti-apoptotic protein expression in FHL124 and HeLa cell with and without TNF alpha and TNF alpha plus CHX stimulation. B Relative cFLIP mRNA expression in FHL124 and HeLa cells with and without TNF alpha and CHX stimulation. FHL 124 cells demonstrated a more robust response to TNF alpha and CHX stimulation compared to HeLa cells. C The endogenous cFLIP, Caspase-8, caspase-9, and caspase-3 mRNA levels in FHL124 cells vs. HeLa cells. A much higher cFLIP mRNA expression was seen in FHL124 cells compared to HeLa cells. D,E cFLIP protein expression after TNF alpha and CHX stimulation in FHL124 and HeLa cells. cFLIP protein level was increased around 3-fold in FHL124 cells at 5 h after TNF alpha and CHX stimulation, while only a mild increase was seen in HeLa cells after stimulation. F,G FHL124 cells had 6-fold endogenous cFLIP protein levels vs. HeLa cells. KD3 shRNA was able to knock down 50% of cFLIP expression in FHL124 cells. Each assay was repeated at least three times. One-way ANOVA with Tukey’s Honest post-hoc analysis was used to compare between groups, and only p < 0.05 is considered significant. *<0.05, **<0.01, ***<0.001, ****<0.0001. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/33837174), licensed under a CC-BY license. Not internally tested by R&D Systems.

Applications for Human/Mouse FLIP Antibody

Application
Recommended Usage

Western Blot

1 µg/mL
Sample: WS-1 human fetal skin fibroblast cell line and L-929 mouse fibroblast cell line

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Reconstitution Buffer Available:
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Formulation

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.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

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: FLIP

FLIP (Flice-like Inhibitory Protein), also known as I-FLICE, CASPER, and FLAME-1, is an apoptosis inhibitory protein with architecture similar to that of Caspases-8 and -10. Both of the FLIP isoforms, Long (L) and 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.

Long Name

FLICE Inhibitory Proteins

Alternate Names

CASPER, CFLAR, FLAME-1, I-FLICE

Entrez Gene IDs

8837 (Human); 12633 (Mouse)

Gene Symbol

CFLAR

Additional FLIP Products

Product Documents for Human/Mouse FLIP Antibody

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Human/Mouse FLIP Antibody

For research use only

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