Protein: Double-stranded RNA-specific adenosine deaminase (DRADA) (EC 3.5.4.37) (P55266)
Organism: Rattus norvegicus (Rat)
Function: Catalyzes the hydrolytic deamination of adenosine to inosine in double-stranded RNA (dsRNA) 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; 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 (hyper-editing) or at specific sites (site-specific editing). Its cellular RNA substrates include: bladder cancer-associated protein (BLCAP), neurotransmitter receptors for glutamate (GRIA2) and serotonin (HTR2C) and GABA receptor (GABRA3). 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. Does not affect polyomavirus replication but provides protection against virus-induced cytopathic effects. Essential for embryonic development and cell survival and plays a critical role in the maintenance of hematopoietic stem cells (By similarity).
Subcellular location: Cytoplasm {ECO:0000250|UniProtKB:P55265}. Nucleus {ECO:0000250|UniProtKB:P55265}. Note=Shuttles between the cytoplasm and nucleus. {ECO:0000250|UniProtKB:P55265}.
Interaction partners:
- Adenosine deaminase
- Regulator of nonsense transcripts 1
- Endoribonuclease Dicer
- Interferon-induced, double-stranded RNA-activated protein kinase
- ATP-dependent RNA helicase A
- RNA-binding motif protein, X chromosome retrogene-like
- RNA-binding motif protein, X chromosome
- Interferon-induced helicase C domain-containing protein 1
- Protein argonaute-2
Sequence:
MSQGFRGPTGVFPHQTQPCLDPSYEHSKWRYLQPRGSESYLRSFQLQQIEFLKGRLPEAPLIGAQTQSLPPFLPGHWPRFPGPPAQGKQPEIWGFPRSVTLRNQGFHIGPPLPPPHSRGPPWRGAEGLCSHFQELSISQNPEQKVLNRLEELGEGKATTAYALARELRTPKKDINRILYSLERKGKLHRGVGKPPLWSLVPLSQACTQPPRAVNSDKEVPRGEPDLDSEDGDPASDLEGPSELLDMAEIKEKICDYLFNVSKSSALNLAKNIGLAKARDVNAVLIDLERQGDVYREGATPPIWYLTDKKRERLQMKRSTHSGPAATPAAVSEATQSTSFPTCHPPQSGGSSSMATSKRVENGQEPVTKYESRHEARPGPVRLRPHAYHNGPSRAGYVASENGPWATDDIPDNLNSIHTAPGEFRAIMEMPSFYSPTLPRCSPYKKLTECQLKNPVSGLLEYAQFTSQTCDFNLIEQSGPSHEPRFKFQVVINGREFPPAEAGSKKVAKQDAAVKAMAILLREAKAKDSGQPEELSNCPMEEDPEKPAESQPPSSSATSLFSGKSPVTTLLECMHKLGNSCEFRLLSKEGPAHDPKFQYCVAVGAQTFPSVSAPSKKVAKQMAAEEAMKALQEEAANSADDQSGGANTDSLDESVAPNKIRRIGELVRYLNTNPVGGLLEYARSHGFAAEFKLIDQSGPPHEPKFVYQAKVGGRWFPAVCAHSKKQGKQDAADAALRVLIGESEKAEQLGFAEVTPVTGASLRRTMLLLSRSPDAHPKTLPLTGSTFHDQIAMLSHRCFNALTNSFQPSLLGRKILAAIIMKRDPEDMGVVVSLGTGNRCVKGDSLSLKGETVNDCHAEIISRRGFIRFLYSELMKYNHHTAKNSIFELARGGEKLQIKKTVSFHLYISTAPCGDGAHFDKSCSDRAVESTESRHYPVFENPKQGKLRTKVENGEGTIPVESSDIVPTWDGIRLGERLRTMSCSDKILRWNVLGLQGALLTHFLQPVYLKSVTLGYLFSQGHLTRAICCRVTRDGNAFEDGLRYPFIVNHPKVGRVSVYDSKRQSGKTKETSVNWCLADGYDLEILDGTRGTVDGPGKELSRVSKKNIFLQFKKLCSFRARRDLLQLSYGEAKKAARDYDLAKNYFKKSLRDMGYGNWISKPQEEKNFYLCPVPND