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Updated Date: Stock Protein updated on 20171018
Research areas: Epigenetics and Nuclear Signaling
Target / Protein: IFIH1
Biologically active: Not Tested
Expression system: E.coli
Species of origin: Homo sapiens (Human)
Delivery time: 3-7 business days
Uniprot ID: Q9BYX4
AA Sequence: KLTKLRNTIMEQYTRTEESARGIIFTKTRQSAYALSQWITENEKFAEVGVKAHHLIGAGHSSEFKPMTQNEQKEVISKFRTGKINLLIATTVAEEGLDIKECNIVIRYGLVTNEIAMVQARGRARADESTYVLVAHSGSGVIEHETVNDFREKMMYKAIHCVQNMKPEEYAHKILELQMQSIMEKKMKTKRNIAKHYKNNPSLITFLCKNCSVLACSGEDIHVIEKMHHVNMTPEFKELYIVRENKALQKKCADYQINGEIICKCGQAWGTMMVHKGLDLPCLKIRNFVVVFKNNSTKKQYKKWVELPITFPNLDYSECCLFSDED
Tag info: N-terminal 6xHis-SUMO-tagged
Expression Region: 700-1025aa
Protein length: Partial
MW: 53.5 kDa
Alternative Name(s): Clinically amyopathic dermatomyositis autoantigen 140KDA Short name: CADM-140 autoantigen Helicase with 2 CARD domains Short name: Helicard Interferon-induced with helicase C domain protein 1 Melanoma differentiation-associated protein 5 Short name: MDA-5 Murabutide down-regulated protein RIG-I-like receptor 2 Short name: RLR-2 RNA helicase-DEAD box protein 116
Relevance: Innate immune receptor which acts as a Cytoplasmic domain sensor of viral nucleic acids and plays a major role in sensing viral infection and in the activation of a cascade of antiviral responses including the induction of type I interferons and proinflammatory cytokines. Its ligands include mRNA lacking 2'-O-methylation at their 5' cap and long-dsRNA (>1 kb in length). Upon ligand binding it associates with mitochondria antiviral signaling protein (MAVS/IPS1) which activates the IKK-related kinases: TBK1 and IKBKE which phosphorylate interferon regulatory factors: IRF3 and IRF7 which in turn activate transcription of antiviral immunological genes, including interferons (IFNs); IFN-alpha and IFN-beta. Responsible for detecting the Picornaviridae family members such as encephalomyocarditis virus (EMCV) and mengo encephalomyocarditis virus (ENMG). Can also detect other viruses such as dengue virus (DENV), west Nile virus (WNV), and reovirus. Also involved in antiviral signaling in response to viruses containing a dsDNA genome, such as vaccinia virus. Plays an important role in amplifying innate immune signaling through recognition of RNA metabolites that are produced during virus infection by ribonuclease L (RNase L). May play an important role in enhancing natural killer cell function and may be involved in growth inhibition and apoptosis in several tumor cell lines.
Reference: "mda-5: an interferon-inducible putative RNA helicase with double-stranded RNA-dependent ATPase activity and melanoma growth-suppressive properties."Kang D.-C., Gopalkrishnan R.V., Wu Q., Jankowsky E., Pyle A.M., Fisher P.B.Proc. Natl. Acad. Sci. U.S.A. 99:637-642(2002)
Purity: Greater than 90% as determined by SDS-PAGE.
Storage: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20℃/-80℃. The shelf life of lyophilized form is 12 months at -20℃/-80℃.
Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4℃ for up to one week.