Anti-MAVS Antibody Picoband®

Mitochondrial antiviral-signaling protein (MAVS) is a protein that in humans is encoded by the MAVS gene. The protein is also known by the names VISA (virus-induced signaling adapter), IPS-1 and Cardif. This gene encodes an intermediary protein necessary in the virus-triggered beta interferon signaling pathways. It is required for activation of transcription factors which regulate expression of beta interferon and contributes to antiviral immunity.

Mitochondrial antiviral-signaling protein; MAVS; CARD adapter inducing interferon beta; Cardif; Interferon beta promoter stimulator protein 1; IPS-1; Putative NF-kappa-B-activating protein 031N; Virus-induced-signaling adapter; VISA; MAVS; IPS1, KIAA1271, VISA

Present 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. .

Antiviral Signaling,2339, Epigenetics and Nuclear Signaling, Immune System Diseases, Immunology, NFKB Pathway, Nuclear Signaling, Nuclear Signaling Pathways, Signal Transduction, Signaling Pathway

Required for innate immune defense against viruses. Acts downstream of DDX58/RIG-I 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) . Peroxisomal and mitochondrial MAVS act sequentially to create an antiviral cellular state. Upon viral infection, peroxisomal MAVS induces the rapid interferon- independent expression of defense factors that provide short-term protection, whereas mitochondrial MAVS activates an interferon- dependent signaling pathway with delayed kinetics, which amplifies and stabilizes the antiviral response. May activate the same pathways following detection of extracellular dsRNA by TLR3. May protect cells from apoptosis. .

1. Seth RB, Sun L, Ea CK, Chen ZJ (Sep 2005) . Identification and characterization of MAVS, a mitochondrial antiviral signaling protein that activates NF-kappaB and IRF 3. Cell. 122 (5) : 669–82. 2. Xu LG, Wang YY, Han KJ, Li LY, Zhai Z, Shu HB (Sep 2005) . VISA is an adapter protein required for virus-triggered IFN-beta signaling. Mol Cell. 19 (6) : 727–40.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.