» Articles » PMID: 28275585

Mutational Pressure in Zika Virus: Local ADAR-Editing Areas Associated with Pauses in Translation and Replication

Overview
Date 2017 Mar 10
PMID 28275585
Citations 22
Authors
Affiliations
Soon will be listed here.
Abstract

Zika virus (ZIKV) spread led to the recent medical health emergency of international concern. Understanding the variations in virus system is of utmost need. Using available complete sequences of ZIKV we estimated directions of mutational pressure along the length of consensus sequences of three lineages of the virus. Results showed that guanine usage is growing in ZIKV RNA plus strand due to adenine to guanine transitions, while adenine usage is growing due to cytosine to adenine transversions. Especially high levels of guanine have been found in two-fold degenerated sites of certain areas of RNA plus strand with high amount of secondary structure. The usage of cytosine in two-fold degenerated sites shows direct dependence on the amount of secondary structure in 52% (consensus sequence of East African ZIKV lineage)-32% (consensus sequence of epidemic strains) of the length of RNA minus strand. These facts are the evidences of ADAR-editing of both strands of ZIKV genome during pauses in replication. RNA plus strand can also be edited by ADAR during pauses in translation caused by the appearance of groups of rare codons. According to our results, RNA minus strand of epidemic ZIKV strain has lower number of points in which polymerase can be stalled (allowing ADAR-editing) compared to other strains. The data on preferable directions of mutational pressure in epidemic ZIKV strain is useful for future vaccine development and understanding the evolution of new strains.

Citing Articles

The regulation of antiviral innate immunity through non-mA RNA modifications.

Shen S, Zhang L Front Immunol. 2023; 14:1286820.

PMID: 37915585 PMC: 10616867. DOI: 10.3389/fimmu.2023.1286820.


The hidden RNA code: implications of the RNA epitranscriptome in the context of viral infections.

Ribeiro D, Nunes A, Ribeiro D, Soares A Front Genet. 2023; 14:1245683.

PMID: 37614818 PMC: 10443596. DOI: 10.3389/fgene.2023.1245683.


Host-mediated RNA editing in viruses.

Zhu T, Niu G, Zhang Y, Chen M, Li C, Hao L Biol Direct. 2023; 18(1):12.

PMID: 36978112 PMC: 10043548. DOI: 10.1186/s13062-023-00366-w.


Spatio-temporal dynamics of intra-host variability in SARS-CoV-2 genomes.

Pathak A, Mishra G, Uppili B, Walia S, Fatihi S, Abbas T Nucleic Acids Res. 2022; 50(3):1551-1561.

PMID: 35048970 PMC: 8860616. DOI: 10.1093/nar/gkab1297.


ADAR Editing in Viruses: An Evolutionary Force to Reckon with.

Piontkivska H, Wales-McGrath B, Miyamoto M, Wayne M Genome Biol Evol. 2021; 13(11).

PMID: 34694399 PMC: 8586724. DOI: 10.1093/gbe/evab240.


References
1.
Thurner C, Witwer C, Hofacker I, Stadler P . Conserved RNA secondary structures in Flaviviridae genomes. J Gen Virol. 2004; 85(Pt 5):1113-1124. DOI: 10.1099/vir.0.19462-0. View

2.
Cao-Lormeau V, Blake A, Mons S, Lastere S, Roche C, Vanhomwegen J . Guillain-Barré Syndrome outbreak associated with Zika virus infection in French Polynesia: a case-control study. Lancet. 2016; 387(10027):1531-1539. PMC: 5444521. DOI: 10.1016/S0140-6736(16)00562-6. View

3.
Sueoka N . Directional mutation pressure, mutator mutations, and dynamics of molecular evolution. J Mol Evol. 1993; 37(2):137-53. DOI: 10.1007/BF02407349. View

4.
Nakamura Y, Gojobori T, Ikemura T . Codon usage tabulated from international DNA sequence databases: status for the year 2000. Nucleic Acids Res. 1999; 28(1):292. PMC: 102460. DOI: 10.1093/nar/28.1.292. View

5.
van Hemert F, Berkhout B . Nucleotide composition of the Zika virus RNA genome and its codon usage. Virol J. 2016; 13:95. PMC: 4898363. DOI: 10.1186/s12985-016-0551-1. View