The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Use a concentration of 1 µg/ml.
Use at an assay dependent concentration.
Use a concentration of 1 µg/ml.
Use a concentration of 1 µg/ml. Detects a band of approximately 57, 75 kDa (predicted molecular weight: 57 kDa).
Use at an assay dependent concentration. PubMed: 21068253
FunctionRequired for innate immune defense against viruses. Acts downstream of DDX58 and IFIH1/MDA5, which detect intracellular dsRNA produced during viral replication, to coordinate pathways leading to the activation of NF-kappa-B, IRF3 and IRF7, and to the subsequent induction of antiviral cytokines such as IFN-beta and RANTES (CCL5). May activate the same pathways following detection of extracellular dsRNA by TLR3. May protect cells from apoptosis.
Tissue specificityPresent in T-cells, monocytes, epithelial cells and hepatocytes (at protein level). Ubiquitously expressed, with highest levels in heart, skeletal muscle, liver, placenta and peripheral blood leukocytes.
Sequence similaritiesContains 1 CARD domain.
DomainBoth CARD and transmembrane domains are essential for antiviral function. The CARD domain is responsible for interaction with DDX58 and IFIH1.
Post-translational modificationsUbiquitinated; undergoes 'Lys-48'-linked polyubiquitination catalyzed by ITCH; ITCH-dependent polyubiquitination is mediated by the interaction with PCBP2 and leads to MAVS proteasomal degradation.
The bands at 75 and 57 kDa correspond to the bands seen in a paper by Seth et al., 2005 (See Supplementary Information). PubMed: 16125763. The band at 51 kDa may represent non-specific antibody binding.
ICC/IF image of ab31334 stained human HEK 293 cells. The cells were PFA fixed (10 min), permabilised in TBS-T (20 min) and incubated with the antibody (ab31334, 1µg/ml) for 1h at room temperature. 1%BSA / 10% normal serum / 0.3M glycine was used to quench autofluorescence and block non-specific protein-protein interactions. The secondary antibody (green) was Alexa Fluor® 488 goat anti-rabbit IgG (H+L) used at a 1/1000 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red). DAPI was used to stain the cell nuclei (blue).
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-MAVS antibody - ChIP Grade (ab31334)This image is courtesy of an Abreview submitted by Ilan Sela
ab31334 staining MAVS in Human skin tissue sections by Immunohistochemistry (IHC-P - paraformaldehyde-fixed, paraffin-embedded sections). Tissue was fixed with paraformaldehyde and blocked with 10% NGS, 5% BSA in PBS for 2 hours at room temperature; antigen retrieval was by heat mediation in a citrate buffer. Samples were incubated with primary antibody (1/500 in diluent) for 16 hours at 4°C. A Goat anti-rabbit HRP polyclonal (1/250) was used as the secondary antibody.
MAVS was immunoprecipitated using 0.5mg A431 whole cell extract, 5µg of Rabbit polyclonal MAVS and 50µl of protein G magnetic beads (+). No antibody was added to the control (-). The antibody was incubated under agitation with Protein G beads for 10min, A431 whole cell extract lysate diluted in RIPA buffer was added to each sample and incubated for a further 10min under agitation. Proteins were eluted by addition of 40µl SDS loading buffer and incubated for 10min at 70oC; 10µl of each sample was separated on a SDS PAGE gel, transferred to a nitrocellulose membrane, blocked with 5% BSA and probed with ab31334. Secondary: Mouse monoclonal [SB62a] Secondary Antibody to Rabbit IgG light chain (HRP) (ab99697). Band: 75kDa: MAVS
References for Anti-MAVS antibody - ChIP Grade (ab31334)
This product has been referenced in:
Yuan D et al. Anti-angiogenic efficacy of 5'-triphosphate siRNA combining VEGF silencing and RIG-I activation in NSCLCs. Oncotarget6:29664-74 (2015).
Read more (PubMed: 26336994) »
Xia M et al. Mitophagy enhances oncolytic measles virus replication by mitigating DDX58/RIG-I-like receptor signaling. J Virol88:5152-64 (2014).
Read more (PubMed: 24574393) »