VISA Antibody

Product Specifications

Background

VISA Antibody: Two distinct signaling pathways activate the host innate immunity against viral infection. One pathway is reliant on members of the Toll-like receptor (TLR) family while the other uses the RNA helicase RIG-I as a receptor for intracellular viral double-stranded RNA as a trigger for the immune response. VISA is a mitochondrial membrane protein that was identified as a critical component in the IFN-b signaling pathways that recruits IRF-3 to RIG-I, leading to its activation and that of NF-κ B. VISA is also thought to interact with other components of the innate immune pathway such as the TLR adapter protein TRIF, TRAF2 and TRAF6. VISA also interacts with the IKKα , IKKβ and IKKε kinases through its C-terminal region. Cleavage of this region by the Hepatitis C virus (HCV) protease allows HCV to escape the host immune system. At least three isoforms of VISA are known to exist.

NCBI Gene ID

57506

Swiss Prot

Q7Z434

Accession Number

NP_065797

Host

Rabbit

Reactivity

Human, Mouse, Rat

Clonality

Polyclonal

Conjugation

Unconjugated

Type

Primary Antibodies

Field of Research

Innate Immunity

Purification

VISA Antibody is affinity chromatography purified via peptide column.

Positive Control

Cat. No. 1288 - A20 Cell Lysate

Concentration

1 mg/mL

Buffer

VISA Antibody is supplied in PBS containing 0.02% sodium azide.

Modification

None

Shipping Conditions

Blue Ice

Storage Conditions

VISA antibody can be stored at 4˚ C for three months and -20˚ C, stable for up to one year. As with all antibodies care should be taken to avoid repeated freeze thaw cycles. Antibodies should not be exposed to prolonged high temperatures.

Fragment

IgG

Symbol

MAVS

Positive Control 2

Cat. No. 1303 - Human Brain Tissue Lysate

Positive Control 3

Cat. No. 10-301 - Human Brain Tissue Slide

NCBI Official Name

Mitochondrial antiviral signaling protein

NCBI Organism

Homo sapiens

Background Reference 01

Seth RB, Sun L, and Chen ZJ. Antiviral innate immunity pathways. Cell Res.2006; 16:141-7.

Background Reference 02

Xu LG, Wang YY, Han KJ, et al. VISA is an adapter protein required for virus-triggered IFN-beta signaling. Mol. Cell2005; 19:727-40.

Background Reference 03

Meylan E, Curran J, Hofman K, et al. Cardif is an adaptor protein in the RIG-I antiviral pathway and is targeted by hepatitis C virus. Nature2005; 1167-72.