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Product Name DDX58 Chinese Name DDX58抗体 Alias DEAD/H (Asp-Glu-Ala-Asp/His) box polypeptide RIG-I; DKFZp434J1111; DKFZp686N19181; FLJ13599; C330021E21; OTTHUMP00000045225; DEAD (Asp-Glu-Ala-Asp) box polypeptide 58; DEAD (Asp Glu Ala Asp/His) box polypeptide; DEAD box protein 58; Probable ATP dependent RNA helicase DDX58; Retinoic acid inducible gene 1 protein; RIG I; rig-I; RIG1; rigi; RNA helicase. Research Area Cell biology immunology transcriptional regulatory factor Immunogen Species Rabbit Clonality Polyclonal React Species Mouse, (predicted: Human, Rat, Dog, Pig, Cow, ) Applications WB=1:500-2000 ELISA=1:5000-10000 IHC-P=1:100-500 (Paraffin sections need antigen repair)
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.Theoretical molecular weight 106kDa Cellular localization cytoplasmic Form Liquid Concentration 1mg/ml immunogen KLH conjugated synthetic peptide derived from human DDX58: 201-300/925 Lsotype IgG Purification affinity purified by Protein A Buffer Solution 0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol. Storage Shipped at 4℃. Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. Attention This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. PubMed PubMed Product Detail The innate immune system detects viral infection by recognizing various viral components and triggers antiviral responses. Like the toll-like receptor 3 (TLR3), the cytoplasmic helicase retinoic acid inducible gene protein 1 (RIG1/DDX58) recognizes double-stranded (ds) RNA, a molecular pattern associated with viral infection. Unlike TLR3 however, RIG1/DDX58 activates the kinases TBK1 and IKKe through the adaptor protein IPS1. These kinases then phosphorylate the transcription factors IRF3 and IRF7 which are essential for the expression of type-I interferons. RIG1/DDX58 is required for the production of interferons in response to RNA viruses including paramyxoviruses, influenza virus, and Japanese encephalitis virus.
Function:
Involved in innate immune defense against viruses. Upon interaction with intracellular dsRNA produced during viral replication, triggers a transduction cascade involving MAVS/IPS1, which results in the activation of NF-kappa-B, IRF3 and IRF7 and the induction of the expression of antiviral cytokines such as IFN-beta and RANTES (CCL5). Detects dsRNA produced from non-self dsDNA by RNA polymerase III, such as Epstein-Barr virus-encoded RNAs (EBERs). Essential for the production of interferons in response to RNA viruses including paramyxoviruses, influenza viruses, Japanese encephalitis virus and HCV.
Subunit:
Monomer; maintained as a monomer in an autoinhibited state. Upon viral dsRNA binding and conformation shift, homomultimerizes and interacts with MAVS. Interacts with DHX58/LGP2, IKBKE, TBK1 and TMEM173/STING. Interacts (via CARD domain) with TRIM25 (via SPRY domain). Interacts with RNF135. Interacts with CYLD. Interacts with NLRC5; blocks the interaction of MAVS to DDX58. Interacts with SRC.
Subcellular Location:
Cytoplasm. Note=Colocalized with TRIM25 at cytoplasmic perinuclear bodies.
Tissue Specificity:
Present in vascular smooth cells (at protein level).
Post-translational modifications:
Phosphorylated in resting cells and dephosphorylated in RNA virus-infected cells. Phosphorylation at Thr-770, Ser-854 and Ser-855 results in inhibition of its activity while dephosphorylation at these sites results in its activation.
Isgylated. Conjugated to ubiquitin-like protein ISG15 upon IFN-beta stimulation.
Ubiquitinated. Undergoes 'Lys-48'- and 'Lys-63'-linked ubiquitination. Lys-172 is the critical site for TRIM25-mediated ubiquitination, for MAVS/IPS1 binding and to induce anti-viral signal transduction. Lys-154, Lys-164 and Lys-172 are critical sites for RNF135-mediated ubiquitination. Deubiquitinated by CYLD, a protease that selectively cleaves 'Lys-63'-linked ubiquitin chains. Also probably deubiquitinated by USP17L2/USP17 that cleaves 'Lys-48'-and 'Lys-63'-linked ubiquitin chains and positively regulates the receptor.
Similarity:
Belongs to the helicase family.
Contains 2 CARD domains.
Contains 1 helicase ATP-binding domain.
Contains 1 helicase C-terminal domain.
SWISS:
O95786
Gene ID:
23586
Database links:Entrez Gene: 23586 Human
Entrez Gene: 230073 Mouse
Omim: 609631 Human
SwissProt: O95786 Human
SwissProt: Q6Q899 Mouse
Unigene: 190622 Human
Unigene: 86382 Mouse
Unigene: 38642 Rat
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