Cargando…
The conserved 5′ apical hairpin stem loops of bamboo mosaic virus and its satellite RNA contribute to replication competence
Satellite RNAs associated with Bamboo mosaic virus (satBaMVs) depend on BaMV for replication and encapsidation. Certain satBaMVs isolated from natural fields significantly interfere with BaMV replication. The 5′ apical hairpin stem loop (AHSL) of satBaMV is the major determinant in interference with...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2012
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3378871/ https://www.ncbi.nlm.nih.gov/pubmed/22278884 http://dx.doi.org/10.1093/nar/gks030 |
_version_ | 1782236093485154304 |
---|---|
author | Chen, Hsin-Chuan Kong, Lih-Ren Yeh, Ting-Yu Cheng, Chi-Ping Hsu, Yau-Heiu Lin, Na-Sheng |
author_facet | Chen, Hsin-Chuan Kong, Lih-Ren Yeh, Ting-Yu Cheng, Chi-Ping Hsu, Yau-Heiu Lin, Na-Sheng |
author_sort | Chen, Hsin-Chuan |
collection | PubMed |
description | Satellite RNAs associated with Bamboo mosaic virus (satBaMVs) depend on BaMV for replication and encapsidation. Certain satBaMVs isolated from natural fields significantly interfere with BaMV replication. The 5′ apical hairpin stem loop (AHSL) of satBaMV is the major determinant in interference with BaMV replication. In this study, by in vivo competition assay, we revealed that the sequence and structure of AHSL, along with specific nucleotides (C(60) and C(83)) required for interference with BaMV replication, are also involved in replication competition among satBaMV variants. Moreover, all of the 5′ ends of natural BaMV isolates contain the similar AHSLs having conserved nucleotides (C(64) and C(86)) with those of interfering satBaMVs, suggesting their co-evolution. Mutational analyses revealed that C(86) was essential for BaMV replication, and that replacement of C(64) with U reduced replication efficiency. The non-interfering satBaMV interfered with BaMV replication with the BaMV-C64U mutant as helper. These findings suggest that two cytosines at the equivalent positions in the AHSLs of BaMV and satBaMV play a crucial role in replication competence. The downregulation level, which is dependent upon the molar ratio of interfering satBaMV to BaMV, implies that there is competition for limited replication machinery. |
format | Online Article Text |
id | pubmed-3378871 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-33788712012-06-20 The conserved 5′ apical hairpin stem loops of bamboo mosaic virus and its satellite RNA contribute to replication competence Chen, Hsin-Chuan Kong, Lih-Ren Yeh, Ting-Yu Cheng, Chi-Ping Hsu, Yau-Heiu Lin, Na-Sheng Nucleic Acids Res RNA Satellite RNAs associated with Bamboo mosaic virus (satBaMVs) depend on BaMV for replication and encapsidation. Certain satBaMVs isolated from natural fields significantly interfere with BaMV replication. The 5′ apical hairpin stem loop (AHSL) of satBaMV is the major determinant in interference with BaMV replication. In this study, by in vivo competition assay, we revealed that the sequence and structure of AHSL, along with specific nucleotides (C(60) and C(83)) required for interference with BaMV replication, are also involved in replication competition among satBaMV variants. Moreover, all of the 5′ ends of natural BaMV isolates contain the similar AHSLs having conserved nucleotides (C(64) and C(86)) with those of interfering satBaMVs, suggesting their co-evolution. Mutational analyses revealed that C(86) was essential for BaMV replication, and that replacement of C(64) with U reduced replication efficiency. The non-interfering satBaMV interfered with BaMV replication with the BaMV-C64U mutant as helper. These findings suggest that two cytosines at the equivalent positions in the AHSLs of BaMV and satBaMV play a crucial role in replication competence. The downregulation level, which is dependent upon the molar ratio of interfering satBaMV to BaMV, implies that there is competition for limited replication machinery. Oxford University Press 2012-05 2012-01-25 /pmc/articles/PMC3378871/ /pubmed/22278884 http://dx.doi.org/10.1093/nar/gks030 Text en © The Author(s) 2012. Published by Oxford University Press. http://creativecommons.org/licenses/by-nc/3.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | RNA Chen, Hsin-Chuan Kong, Lih-Ren Yeh, Ting-Yu Cheng, Chi-Ping Hsu, Yau-Heiu Lin, Na-Sheng The conserved 5′ apical hairpin stem loops of bamboo mosaic virus and its satellite RNA contribute to replication competence |
title | The conserved 5′ apical hairpin stem loops of bamboo mosaic virus and its satellite RNA contribute to replication competence |
title_full | The conserved 5′ apical hairpin stem loops of bamboo mosaic virus and its satellite RNA contribute to replication competence |
title_fullStr | The conserved 5′ apical hairpin stem loops of bamboo mosaic virus and its satellite RNA contribute to replication competence |
title_full_unstemmed | The conserved 5′ apical hairpin stem loops of bamboo mosaic virus and its satellite RNA contribute to replication competence |
title_short | The conserved 5′ apical hairpin stem loops of bamboo mosaic virus and its satellite RNA contribute to replication competence |
title_sort | conserved 5′ apical hairpin stem loops of bamboo mosaic virus and its satellite rna contribute to replication competence |
topic | RNA |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3378871/ https://www.ncbi.nlm.nih.gov/pubmed/22278884 http://dx.doi.org/10.1093/nar/gks030 |
work_keys_str_mv | AT chenhsinchuan theconserved5apicalhairpinstemloopsofbamboomosaicvirusanditssatelliternacontributetoreplicationcompetence AT konglihren theconserved5apicalhairpinstemloopsofbamboomosaicvirusanditssatelliternacontributetoreplicationcompetence AT yehtingyu theconserved5apicalhairpinstemloopsofbamboomosaicvirusanditssatelliternacontributetoreplicationcompetence AT chengchiping theconserved5apicalhairpinstemloopsofbamboomosaicvirusanditssatelliternacontributetoreplicationcompetence AT hsuyauheiu theconserved5apicalhairpinstemloopsofbamboomosaicvirusanditssatelliternacontributetoreplicationcompetence AT linnasheng theconserved5apicalhairpinstemloopsofbamboomosaicvirusanditssatelliternacontributetoreplicationcompetence AT chenhsinchuan conserved5apicalhairpinstemloopsofbamboomosaicvirusanditssatelliternacontributetoreplicationcompetence AT konglihren conserved5apicalhairpinstemloopsofbamboomosaicvirusanditssatelliternacontributetoreplicationcompetence AT yehtingyu conserved5apicalhairpinstemloopsofbamboomosaicvirusanditssatelliternacontributetoreplicationcompetence AT chengchiping conserved5apicalhairpinstemloopsofbamboomosaicvirusanditssatelliternacontributetoreplicationcompetence AT hsuyauheiu conserved5apicalhairpinstemloopsofbamboomosaicvirusanditssatelliternacontributetoreplicationcompetence AT linnasheng conserved5apicalhairpinstemloopsofbamboomosaicvirusanditssatelliternacontributetoreplicationcompetence |