InnateDB: Systems Biology of the Innate Immune Response

Mus musculus Protein: Adarb1

Summary

InnateDB Protein

IDBP-192736.6

Last Modified

2014-10-13 [Report errors or provide feedback]

Gene Symbol

Adarb1

Protein Name

adenosine deaminase, RNA-specific, B1

Synonyms

1700057H01Rik; Adar2; AW124433; AW558573; BB220382; D10Bwg0447e; Red1;

Species

Mus musculus

Ensembl Protein

ENSMUSP00000095976

InnateDB Gene

IDBG-166979 (Adarb1)

Protein Structure

UniProt Annotation

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 GRIK2) and serotonin (HTR2C), GABA receptor (GABRA3) and potassium voltage-gated channel (KCNA1). Site- specific RNA editing of transcripts encoding these proteins results in amino acid substitutions which consequently alter their functional activities. Edits GRIA2 at both the Q/R and R/G sites efficiently but converts the adenosine in hotspot1 much less efficiently. Can inhibit cell proliferation and migration and can stimulate exocytosis. {ECO:0000269PubMed:17369310}.

Subcellular Localization

Nucleus {ECO:0000250}. Nucleus, nucleolus {ECO:0000250}. Note=Shuttles between nucleoli and the nucleoplasm. {ECO:0000250}.

Disease Associations

Tissue Specificity

Comments

Interactions

Number of Interactions

This gene and/or its encoded proteins are associated with 2 experimentally validated interaction(s) in this database.
They are also associated with 5 interaction(s) predicted by orthology.

Experimentally validated
Total	2 [view]
Protein-Protein	2 [view]
Protein-DNA	0
Protein-RNA	0
DNA-DNA	0
RNA-RNA	0
DNA-RNA	0

Predicted by orthology
Total	5 [view]

Gene Ontology

Molecular Function

Accession	GO Term
GO:0003723	RNA binding
GO:0003725	double-stranded RNA binding
GO:0003726	double-stranded RNA adenosine deaminase activity
GO:0004000	adenosine deaminase activity
GO:0005515	protein binding
GO:0044822	poly(A) RNA binding
GO:0046872	metal ion binding

Biological Process

GO:0006382	adenosine to inosine editing
GO:0006396	RNA processing
GO:0006397	mRNA processing
GO:0008285	negative regulation of cell proliferation
GO:0030336	negative regulation of cell migration
GO:0044387	negative regulation of protein kinase activity by regulation of protein phosphorylation
GO:0045070	positive regulation of viral genome replication
GO:0051726	regulation of cell cycle