Interplay between Position-Dependent Codon Usage Bias and Hydrogen Bonding at the 5ʹ End of ORFeomes

ABSTRACT Codon usage bias exerts control over a wide variety of molecular processes. The positioning of synonymous codons within coding sequences (CDSs) dictates protein expression by mechanisms such as local translation efficiency, mRNA Gibbs free energy, and protein cotranslational folding. In thi...

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Autores principales:	Juan C. Villada, Maria F. Duran, Patrick K. H. Lee
Formato:	article
Lenguaje:	EN
Publicado:	American Society for Microbiology 2020
Materias:	codon variants transcription efficiency DNA unwinding resource allocation energy efficiency Microbiology QR1-502
Acceso en línea:	https://doaj.org/article/dc44c0d1f9ff4f7dadbdfe703a6a35ca
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spelling	oai:doaj.org-article:dc44c0d1f9ff4f7dadbdfe703a6a35ca2021-12-02T19:46:20ZInterplay between Position-Dependent Codon Usage Bias and Hydrogen Bonding at the 5ʹ End of ORFeomes10.1128/mSystems.00613-202379-5077https://doaj.org/article/dc44c0d1f9ff4f7dadbdfe703a6a35ca2020-08-01T00:00:00Zhttps://journals.asm.org/doi/10.1128/mSystems.00613-20https://doaj.org/toc/2379-5077ABSTRACT Codon usage bias exerts control over a wide variety of molecular processes. The positioning of synonymous codons within coding sequences (CDSs) dictates protein expression by mechanisms such as local translation efficiency, mRNA Gibbs free energy, and protein cotranslational folding. In this work, we explore how codon usage affects the position-dependent content of hydrogen bonding, which in turn influences energy requirements for unwinding double-stranded DNA (dsDNA). We categorized codons according to their hydrogen bond content and found differential effects on hydrogen bonding encoded by codon variants. The specific positional disposition of codon variants within CDSs creates a ramp of hydrogen bonding at the 5ʹ end of the ORFeome in Escherichia coli. CDSs occupying the first position of operons are subjected to selective pressure that reduces their hydrogen bonding compared to internal CDSs, and highly transcribed CDSs demand a lower maximum capacity of hydrogen bonds per codon, suggesting that the energetic requirement for unwinding the dsDNA in highly transcribed CDSs has evolved to be minimized in E. coli. Subsequent analysis of over 14,000 ORFeomes showed a pervasive ramp of hydrogen bonding at the 5ʹ end in Bacteria and Archaea that positively correlates with the probability of mRNA secondary structure formation. Both the ramp and the correlation were not found in Fungi. The position-dependent hydrogen bonding might be part of the mechanism that contributes to the coordination between transcription and translation in Bacteria and Archaea. A Web-based application to analyze the position-dependent hydrogen bonding of ORFeomes has been developed and is publicly available (https://juanvillada.shinyapps.io/hbonds/). IMPORTANCE Redundancy of the genetic code creates a vast space of alternatives to encode a protein. Synonymous codons exert control over a variety of molecular and physiological processes of cells mainly through influencing protein biosynthesis. Recent findings have shown that synonymous codon choice affects transcription by controlling mRNA abundance, mRNA stability, transcription termination, and transcript biosynthesis cost. In this work, by analyzing thousands of Bacteria, Archaea, and Fungi genomes, we extend recent findings by showing that synonymous codon choice, corresponding to the number of hydrogen bonds in a codon, can also have an effect on the energetic requirements for unwinding double-stranded DNA in a position-dependent fashion. This report offers new perspectives on the mechanism behind the transcription-translation coordination and complements previous hypotheses on the resource allocation strategies used by Bacteria and Archaea to manage energy efficiency in gene expression.Juan C. VilladaMaria F. DuranPatrick K. H. LeeAmerican Society for Microbiologyarticlecodon variantstranscription efficiencyDNA unwindingresource allocationenergy efficiencyMicrobiologyQR1-502ENmSystems, Vol 5, Iss 4 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	codon variants transcription efficiency DNA unwinding resource allocation energy efficiency Microbiology QR1-502
spellingShingle	codon variants transcription efficiency DNA unwinding resource allocation energy efficiency Microbiology QR1-502 Juan C. Villada Maria F. Duran Patrick K. H. Lee Interplay between Position-Dependent Codon Usage Bias and Hydrogen Bonding at the 5ʹ End of ORFeomes
description	ABSTRACT Codon usage bias exerts control over a wide variety of molecular processes. The positioning of synonymous codons within coding sequences (CDSs) dictates protein expression by mechanisms such as local translation efficiency, mRNA Gibbs free energy, and protein cotranslational folding. In this work, we explore how codon usage affects the position-dependent content of hydrogen bonding, which in turn influences energy requirements for unwinding double-stranded DNA (dsDNA). We categorized codons according to their hydrogen bond content and found differential effects on hydrogen bonding encoded by codon variants. The specific positional disposition of codon variants within CDSs creates a ramp of hydrogen bonding at the 5ʹ end of the ORFeome in Escherichia coli. CDSs occupying the first position of operons are subjected to selective pressure that reduces their hydrogen bonding compared to internal CDSs, and highly transcribed CDSs demand a lower maximum capacity of hydrogen bonds per codon, suggesting that the energetic requirement for unwinding the dsDNA in highly transcribed CDSs has evolved to be minimized in E. coli. Subsequent analysis of over 14,000 ORFeomes showed a pervasive ramp of hydrogen bonding at the 5ʹ end in Bacteria and Archaea that positively correlates with the probability of mRNA secondary structure formation. Both the ramp and the correlation were not found in Fungi. The position-dependent hydrogen bonding might be part of the mechanism that contributes to the coordination between transcription and translation in Bacteria and Archaea. A Web-based application to analyze the position-dependent hydrogen bonding of ORFeomes has been developed and is publicly available (https://juanvillada.shinyapps.io/hbonds/). IMPORTANCE Redundancy of the genetic code creates a vast space of alternatives to encode a protein. Synonymous codons exert control over a variety of molecular and physiological processes of cells mainly through influencing protein biosynthesis. Recent findings have shown that synonymous codon choice affects transcription by controlling mRNA abundance, mRNA stability, transcription termination, and transcript biosynthesis cost. In this work, by analyzing thousands of Bacteria, Archaea, and Fungi genomes, we extend recent findings by showing that synonymous codon choice, corresponding to the number of hydrogen bonds in a codon, can also have an effect on the energetic requirements for unwinding double-stranded DNA in a position-dependent fashion. This report offers new perspectives on the mechanism behind the transcription-translation coordination and complements previous hypotheses on the resource allocation strategies used by Bacteria and Archaea to manage energy efficiency in gene expression.
format	article
author	Juan C. Villada Maria F. Duran Patrick K. H. Lee
author_facet	Juan C. Villada Maria F. Duran Patrick K. H. Lee
author_sort	Juan C. Villada
title	Interplay between Position-Dependent Codon Usage Bias and Hydrogen Bonding at the 5ʹ End of ORFeomes
title_short	Interplay between Position-Dependent Codon Usage Bias and Hydrogen Bonding at the 5ʹ End of ORFeomes
title_full	Interplay between Position-Dependent Codon Usage Bias and Hydrogen Bonding at the 5ʹ End of ORFeomes
title_fullStr	Interplay between Position-Dependent Codon Usage Bias and Hydrogen Bonding at the 5ʹ End of ORFeomes
title_full_unstemmed	Interplay between Position-Dependent Codon Usage Bias and Hydrogen Bonding at the 5ʹ End of ORFeomes
title_sort	interplay between position-dependent codon usage bias and hydrogen bonding at the 5ʹ end of orfeomes
publisher	American Society for Microbiology
publishDate	2020
url	https://doaj.org/article/dc44c0d1f9ff4f7dadbdfe703a6a35ca
work_keys_str_mv	AT juancvillada interplaybetweenpositiondependentcodonusagebiasandhydrogenbondingatthe5ʹendoforfeomes AT mariafduran interplaybetweenpositiondependentcodonusagebiasandhydrogenbondingatthe5ʹendoforfeomes AT patrickkhlee interplaybetweenpositiondependentcodonusagebiasandhydrogenbondingatthe5ʹendoforfeomes
_version_	1718375994144849920

Interplay between Position-Dependent Codon Usage Bias and Hydrogen Bonding at the 5ʹ End of ORFeomes

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