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MAVS 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). May activate the same pathways following detection of extracellular dsRNA by TLR3. May protect cells from apoptosis. Interacts with DDX58/RIG-I, IFIH1/MDA5, TRAF2 and TRAF6. May interact with IRF3, FADD, RIPK1, CHUK and IKBKB. Does not interact with TBK1. Interacts with and is cleaved by HCV and hepatitis GB virus B NS3/4A proteases. Interacts with and is cleaved by HHAV protein 3ABC. Interacts with NLRX1. Interaction with NLRX1 requires the CARD domain. Interacts with PSMA7. Interacts with TRAFD1. Interacts (via C-terminus) with PCBP2 in a complex containing MAVS/IPS1, PCBP2 and ITCH. Interacts with CYLD. Interacts with SRC. Interacts with DHX58/LGP2 and IKBKE. Present in T-cells, monocytes, epithelial cells and hepatocytes. Ubiquitously expressed, with highest levels in heart, skeletal muscle, liver, placenta and peripheral blood leukocytes. 3 isoforms of the human protein are produced by alternative splicing. Note: This description may include information from UniProtKB.
Protein type: Adaptor/scaffold; Membrane protein, integral
Chromosomal Location of Human Ortholog: 20p13
Cellular Component: mitochondrial membrane; mitochondrial outer membrane; mitochondrion; peroxisomal membrane
Molecular Function: CARD domain binding; protein binding; protein kinase binding; signal transducer activity
Biological Process: activation of innate immune response; defense response to bacterium; defense response to virus; innate immune response; negative regulation of interferon type I production; negative regulation of viral genome replication; positive regulation of defense response to virus by host; positive regulation of I-kappaB kinase/NF-kappaB cascade; positive regulation of interferon-alpha production; positive regulation of interferon-beta production; positive regulation of interleukin-8 production; positive regulation of protein amino acid phosphorylation; positive regulation of protein import into nucleus, translocation; positive regulation of transcription factor activity; positive regulation of transcription factor import into nucleus; positive regulation of transcription from RNA polymerase II promoter; positive regulation of tumor necrosis factor production; protein deubiquitination; signal transduction
Reference #:  Q7Z434 (UniProtKB)
Alt. Names/Synonyms: CARD adapter inducing interferon beta; CARD adapter inducing interferon-beta; CARD adaptor inducing IFN-beta; Cardif; DKFZp547C224; DKFZp666M015; FLJ27482; FLJ35386; FLJ38051; FLJ41962; IFN-B promoter stimulator 1; Interferon beta promoter stimulator protein 1; interferon-beta promoter stimulator protein 1; IPS-1; IPS1; KIAA1271; MAVS; MGC3260; mitochondrial anti-viral signaling protein; mitochondrial antiviral signaling protein; Mitochondrial antiviral-signaling protein; Putative NF-kappa-B-activating protein 031N; virus-induced signaling adapter variant 1b; virus-induced signaling adaptor variant 1a; Virus-induced-signaling adapter; VISA
Gene Symbols: MAVS
Molecular weight: 56,528 Da
Basal Isoelectric point: 5.36  Predict pI for various phosphorylation states
CST Pathways:  Toll-Like Receptor Signaling
Protein-Specific Antibodies or siRNAs from Cell Signaling Technology® Total Proteins
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