ADARB1
Double-stranded RNA-specific editase 1 is an enzyme that in humans is encoded by the ADARB1 gene.[5][6][7]
Function
This gene encodes the enzyme responsible for pre-mRNA editing of the glutamate receptor subunit B by site-specific deamination of adenosines. Studies in rats found that this enzyme acted on its own pre-mRNA molecules to convert an AA dinucleotide to an AI dinucleotide which resulted in a new splice site. Alternative splicing of this gene results in several transcript variants, some of which have been characterized by the presence or absence of an ALU cassette insert and a short or long C-terminal region.[7]
ADARB1 (ADAR2) requires the small molecule inositol hexakisphosphate (IP6) for proper function.[8] ADAR2 is an A-to-I RNA-editing enzyme that mostly acts on protein-coding substrates.[9]
References
- GRCh38: Ensembl release 89: ENSG00000197381 - Ensembl, May 2017
- GRCm38: Ensembl release 89: ENSMUSG00000020262 - Ensembl, May 2017
- "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
- "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
- Mittaz L, Scott HS, Rossier C, Seeburg PH, Higuchi M, Antonarakis SE (April 1997). "Cloning of a human RNA editing deaminase (ADARB1) of glutamate receptors that maps to chromosome 21q22.3". Genomics. 41 (2): 210–7. doi:10.1006/geno.1997.4655. PMID 9143496.
- Keegan LP, Leroy A, Sproul D, O'Connell MA (Feb 2004). "Adenosine deaminases acting on RNA (ADARs): RNA-editing enzymes". Genome Biology. 5 (2): 209. doi:10.1186/gb-2004-5-2-209. PMC 395743. PMID 14759252.
- "Entrez Gene: ADARB1 adenosine deaminase, RNA-specific, B1 (RED1 homolog rat)".
- Macbeth MR, Schubert HL, Vandemark AP, Lingam AT, Hill CP, Bass BL (September 2005). "Inositol hexakisphosphate is bound in the ADAR2 core and required for RNA editing". Science. 309 (5740): 1534–9. doi:10.1126/science.1113150. PMC 1850959. PMID 16141067.
- Licht K, Jantsch MF (April 2016). "Rapid and dynamic transcriptome regulation by RNA editing and RNA modifications". The Journal of Cell Biology. 213 (1): 15–22. doi:10.1083/jcb.201511041. PMC 4828693. PMID 27044895.
Further reading
- Valenzuela A, Blanco J, Callebaut C, Jacotot E, Lluis C, Hovanessian AG, Franco R (1997). HIV-1 envelope gp120 and viral particles block adenosine deaminase binding to human CD26. Advances in Experimental Medicine and Biology. 421. pp. 185–92. doi:10.1007/978-1-4757-9613-1_24. ISBN 978-1-4757-9615-5. PMID 9330696.
- Melcher T, Maas S, Herb A, Sprengel R, Seeburg PH, Higuchi M (February 1996). "A mammalian RNA editing enzyme". Nature. 379 (6564): 460–4. doi:10.1038/379460a0. PMID 8559253.
- O'Connell MA, Gerber A, Keller W (January 1997). "Purification of human double-stranded RNA-specific editase 1 (hRED1) involved in editing of brain glutamate receptor B pre-mRNA". The Journal of Biological Chemistry. 272 (1): 473–8. doi:10.1074/jbc.272.1.473. PMID 8995285.
- Valenzuela A, Blanco J, Callebaut C, Jacotot E, Lluis C, Hovanessian AG, Franco R (April 1997). "Adenosine deaminase binding to human CD26 is inhibited by HIV-1 envelope glycoprotein gp120 and viral particles". Journal of Immunology. 158 (8): 3721–9. PMID 9103436.
- Lai F, Chen CX, Carter KC, Nishikura K (May 1997). "Editing of glutamate receptor B subunit ion channel RNAs by four alternatively spliced DRADA2 double-stranded RNA adenosine deaminases". Molecular and Cellular Biology. 17 (5): 2413–24. doi:10.1128/MCB.17.5.2413. PMC 232090. PMID 9111310.
- Yang JH, Sklar P, Axel R, Maniatis T (April 1997). "Purification and characterization of a human RNA adenosine deaminase for glutamate receptor B pre-mRNA editing". Proceedings of the National Academy of Sciences of the United States of America. 94 (9): 4354–9. doi:10.1073/pnas.94.9.4354. PMC 20726. PMID 9113993.
- Gerber A, O'Connell MA, Keller W (May 1997). "Two forms of human double-stranded RNA-specific editase 1 (hRED1) generated by the insertion of an Alu cassette". RNA. 3 (5): 453–63. PMC 1369496. PMID 9149227.
- Villard L, Tassone F, Haymowicz M, Welborn R, Gardiner K (March 1997). "Map location, genomic organization and expression patterns of the human RED1 RNA editase". Somatic Cell and Molecular Genetics. 23 (2): 135–45. doi:10.1007/BF02679972. PMID 9330641.
- Blanco J, Valenzuela A, Herrera C, Lluís C, Hovanessian AG, Franco R (July 2000). "The HIV-1 gp120 inhibits the binding of adenosine deaminase to CD26 by a mechanism modulated by CD4 and CXCR4 expression". FEBS Letters. 477 (1–2): 123–8. doi:10.1016/S0014-5793(00)01751-8. PMID 10899322.
- Herrera C, Morimoto C, Blanco J, Mallol J, Arenzana F, Lluis C, Franco R (June 2001). "Comodulation of CXCR4 and CD26 in human lymphocytes". The Journal of Biological Chemistry. 276 (22): 19532–9. doi:10.1074/jbc.M004586200. PMID 11278278.
- Maas S, Patt S, Schrey M, Rich A (December 2001). "Underediting of glutamate receptor GluR-B mRNA in malignant gliomas". Proceedings of the National Academy of Sciences of the United States of America. 98 (25): 14687–92. doi:10.1073/pnas.251531398. PMC 64742. PMID 11717408.
- Jayan GC, Casey JL (April 2002). "Increased RNA editing and inhibition of hepatitis delta virus replication by high-level expression of ADAR1 and ADAR2". Journal of Virology. 76 (8): 3819–27. doi:10.1128/JVI.76.8.3819-3827.2002. PMC 136091. PMID 11907222.
- Jaikaran DC, Collins CH, MacMillan AM (October 2002). "Adenosine to inosine editing by ADAR2 requires formation of a ternary complex on the GluR-B R/G site". The Journal of Biological Chemistry. 277 (40): 37624–9. doi:10.1074/jbc.M204126200. PMID 12163487.
- Jayan GC, Casey JL (December 2002). "Inhibition of hepatitis delta virus RNA editing by short inhibitory RNA-mediated knockdown of ADAR1 but not ADAR2 expression". Journal of Virology. 76 (23): 12399–404. doi:10.1128/JVI.76.23.12399-12404.2002. PMC 136899. PMID 12414985.
- Slavov D, Gardiner K (October 2002). "Phylogenetic comparison of the pre-mRNA adenosine deaminase ADAR2 genes and transcripts: conservation and diversity in editing site sequence and alternative splicing patterns". Gene. 299 (1–2): 83–94. doi:10.1016/S0378-1119(02)01016-8. PMID 12459255.
External links
- Human ADARB1 genome location and ADARB1 gene details page in the UCSC Genome Browser.
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