DDX58; Probable ATP-dependent RNA helicase DDX58; DEAD box protein 58; RIG-I-like receptor 1; Retinoic acid-inducible gene 1 protein; Retinoic acid-inducible gene I protein
Key Feature
Clonality
Polyclonal
Isotype
Ig
Host Species
Rabbit
Tested Applications
WB
WB:1:50~100
Species Reactivity
Human
Concentration
1mg/ml
Target Information
Alternative Names
DDX58 Probable ATP-dependent RNA helicase DDX58 DEAD box protein 58 RIG-I-like receptor 1 Retinoic acid-inducible gene 1 protein Retinoic acid-inducible gene I protein
Molecular Weight(MW)
106600 Da
Function
Innate immune receptor which acts as a cytoplasmic 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: 5'- triphosphorylated ssRNA and dsRNA and short dsRNA (<1 kb in length). In addition to the 5'-triphosphate moiety, blunt-end base pairing at the 5'-end of the RNA is very essential. Overhangs at the non-triphosphorylated end of the dsRNA RNA have no major impact on its activity. A 3'overhang at the 5'triphosphate end decreases and any 5'overhang at the 5' triphosphate end abolishes its activity. 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. Detects both positive and negative strand RNA viruses including members of the families Paramyxoviridae: Human respiratory syncytial virus and measles virus (MeV), Rhabdoviridae: vesicular stomatitis virus (VSV), Orthomyxoviridae: influenza A and B virus, Flaviviridae: Japanese encephalitis virus (JEV), hepatitis C virus (HCV), dengue virus (DENV) and west Nile virus (WNV). It also detects rotavirus and reovirus. Also involved in antiviral signaling in response to viruses containing a dsDNA genome such as Epstein-Barr virus (EBV). Detects dsRNA produced from non-self dsDNA by RNA polymerase III, such as Epstein-Barr virus-encoded RNAs (EBERs) May play important roles in granulocyte production and differentiation, bacterial phagocytosis and in the regulation of cell migration
Tissue Specificity
Present in vascular smooth cells (at protein level)
Cellular Localization
Cytoplasm. Cell projection, ruffle membrane. Cytoplasm, cytoskeleton. Cell junction, tight junction Note=Colocalized with TRIM25 at cytoplasmic perinuclear bodies Associated with the actin cytoskeleton at membrane ruffles
Western blot analysis of DDX58 in 293 cell line lysates (35ug/lane). DDX58 (arrow) was detected using the purified Pab.
Application Notes
WB:1:50~100
Additional Information
Form
Liquid
Storage Instructions
For short-term storage, store at 4° C. For long-term storage, aliquot and store at -20ºC or below. Avoid multiple freeze-thaw cycles.
Storage Buffer
Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide. This antibody is prepared by Saturated Ammonium Sulfate (SAS) precipitation followed by dialysis against PBS.