Catalyzes the hydrolytic deamination of adenosine to inosine in double-stranded RNA referred to as A-to-I RNA editing . This may affect gene expression and function in a number of ways that include mRNA translation by changing codons and hence the amino acid sequence of proteins since the translational machinery read the inosine as a guanosine; pre-mRNA splicing by altering splice site recognition sequences; RNA stability by changing sequences involved in nuclease recognition; genetic stability in the case of RNA virus genomes by changing sequences during viral RNA replication; and RNA structure-dependent activities such as microRNA production or targeting or protein-RNA interactions. Can edit both viral and cellular RNAs and can edit RNAs at multiple sites or at specific sites . Its cellular RNA substrates include: bladder cancer-associated protein , neurotransmitter receptors for glutamate and serotonin and GABA receptor . Site-specific RNA editing of transcripts encoding these proteins results in amino acid substitutions which consequently alters their functional activities. Exhibits low-level editing at the GRIA2 Q/R site, but edits efficiently at the R/G site and HOTSPOT1. Its viral RNA substrates include: hepatitis C virus , vesicular stomatitis virus , measles virus , hepatitis delta virus , and human immunodeficiency virus type 1 . Exhibits either a proviral or an antiviral effect and this can be editing-dependent , editing-independent or both . Impairs HCV replication via RNA editing at multiple sites. Enhances the replication of MV, VSV and HIV-1 through an editing-independent mechanism via suppression of EIF2AK2/PKR activation and function. Stimulates both the release and infectivity of HIV-1 viral particles by an editing-dependent mechanism where it associates with viral RNAs and edits adenosines in the 5'UTR and the Rev and Tat coding sequence. Can enhance viral replication of HDV via A-to-I editing at a site designated as amber/W, thereby changing an UAG amber stop codon to an UIG tryptophan codon that permits synthesis of the large delta antigen which has a key role in the assembly of viral particles. However, high levels of ADAR1 inhibit HDV replication.

Double-stranded RNA-specific adenosine deaminase (DRADA) (EC 3.5.4.37) (136 kDa double-stranded RNA-binding protein) (p136) (Interferon-inducible protein 4) (IFI-4) (K88DSRBP)

p55265

Human

WB,IHC,FC

WB 1:1000-1:5000
IHC 1:50-1:100
FC 1:10-1:100

~137 kD

Rabbit

50mM Tris-Glycine(pH 7.4), 0.15M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.

Store at -20°C. Stable for 12 months from date of receipt.