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3.5.4.37: double-stranded RNA adenine deaminase

This is an abbreviated version!
For detailed information about double-stranded RNA adenine deaminase, go to the full flat file.

Word Map on EC 3.5.4.37

Reaction

adenine in double-stranded RNA
+
H2O
=
hypoxanthine in double-stranded RNA
+
NH3

Synonyms

ADAR, ADAR1, ADAR1L, ADAR1S, ADAR2, ADAR2 deaminase, adenosine deaminase acting on RNA 1, adenosine deaminase acting on RNA-1, APOBEC1, bADAR1a, CiADAR1, dADAR, double-stranded RNA adenosine deaminase, double-stranded RNA-specific adenosine deaminase, double-stranded RNA-specific adenosine deaminase 1, double-stranded-RNA-specific adenosine deaminase 1, DRADA1, dsRAD, dsRNA adenosine deaminase, hADAR1, hADAR1a, hADAR2, hADAR2-D

ECTree

     3 Hydrolases
         3.5 Acting on carbon-nitrogen bonds, other than peptide bonds
             3.5.4 In cyclic amidines
                3.5.4.37 double-stranded RNA adenine deaminase

Natural Substrates Products

Natural Substrates Products on EC 3.5.4.37 - double-stranded RNA adenine deaminase

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NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
adenine in double-stranded RNA + H2O
hypoxanthine in double-stranded RNA + NH3
show the reaction diagram
adenosine in double-stranded RNA + H2O
hypoxanthine in double-stranded RNA + NH3
show the reaction diagram
-
although codon editing is important, it represents only a small fraction of the editing events in the transcriptome. Editing sites in non-coding regions of RNA are more prevalent. Introns and untranslated regions of mRNA are the primary non-coding targets, but editing also occurs in small RNAs, such as miRNAs. functions in the regulation of a variety of post-transcriptional processes. Inosine has different base-pairing properties from adenosine, and thus, editing alters RNA structure, coding potential and splicing patterns. Function primarily in proteome diversification, especially in the nervous system. Inosine is recognized as guanosine by the translation and splicing machineries, and thus, ADARs can alter the protein-coding information of an mRNA. In addition, because inosine prefers to pair with cytidine, ADARs destabilize dsRNA by changing AU base-pairs to IU mismatches, or increase its stability by changing AC mismatches to IC base-pairs
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?
additional information
?
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overexpression of p150 ADAR1 has no significant effect on the yield of vesicular stomatitis virus. reduction of p110 and p150 ADAR1 proteins to less than 10% to 15% of parental levels (ADAR1-deficient) has no significant effect on growth of Vesicular Stomatitis Virus in the absence of interferon treatment. The level of phosphorylated protein kinase PKR is increased in ADAR1-deficient cells compared to ADAR1-sufficient cells following IFN treatment, regardless of viral infection. ADAR1 suppresses activation of protein kinase PKR and inhibition of growth of Vesicular Stomatitis Virus in response to interferon treatment
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?