<i>Plasmodium</i>, the <i>Apicomplexa</i> Outlier When It Comes to Protein Synthesis

<i>Plasmodium</i> is an obligate intracellular parasite that has numerous interactions with different hosts during its elaborate life cycle. This is also the case for the other parasites belonging to the same phylum <i>Apicomplexa</i>. In this study, we bioinformatically iden...

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Main Authors: José R. Jaramillo Ponce, Magali Frugier
Format: Article
Language:English
Published: MDPI AG 2023-12-01
Series:Biomolecules
Subjects:
Online Access:https://www.mdpi.com/2218-273X/14/1/46
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author José R. Jaramillo Ponce
Magali Frugier
author_facet José R. Jaramillo Ponce
Magali Frugier
author_sort José R. Jaramillo Ponce
collection DOAJ
description <i>Plasmodium</i> is an obligate intracellular parasite that has numerous interactions with different hosts during its elaborate life cycle. This is also the case for the other parasites belonging to the same phylum <i>Apicomplexa</i>. In this study, we bioinformatically identified the components of the multi-synthetase complexes (MSCs) of several <i>Apicomplexa</i> parasites and modelled their assembly using AlphaFold2. It appears that none of these MSCs resemble the two MSCs that we have identified and characterized in <i>Plasmodium</i>. Indeed, tRip, the central protein involved in the association of the two <i>Plasmodium</i> MSCs is different from its homologues, suggesting also that the tRip-dependent import of exogenous tRNAs is not conserved in other apicomplexan parasites. Based on this observation, we searched for obvious differences that could explain the singularity of <i>Plasmodium</i> protein synthesis by comparing tRNA genes and amino acid usage in the different genomes. We noted a contradiction between the large number of asparagine residues used in <i>Plasmodium</i> proteomes and the single gene encoding the tRNA that inserts them into proteins. This observation remains true for all the <i>Plasmodia</i> strains studied, even those that do not contain long asparagine homorepeats.
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spelling doaj.art-8a9b19ad0be44082b9be1f57bdef9aac2024-01-26T15:18:40ZengMDPI AGBiomolecules2218-273X2023-12-011414610.3390/biom14010046<i>Plasmodium</i>, the <i>Apicomplexa</i> Outlier When It Comes to Protein SynthesisJosé R. Jaramillo Ponce0Magali Frugier1Université de Strasbourg, CNRS, Architecture et Réactivité de l’ARN, UPR 9002, F-67084 Strasbourg, FranceUniversité de Strasbourg, CNRS, Architecture et Réactivité de l’ARN, UPR 9002, F-67084 Strasbourg, France<i>Plasmodium</i> is an obligate intracellular parasite that has numerous interactions with different hosts during its elaborate life cycle. This is also the case for the other parasites belonging to the same phylum <i>Apicomplexa</i>. In this study, we bioinformatically identified the components of the multi-synthetase complexes (MSCs) of several <i>Apicomplexa</i> parasites and modelled their assembly using AlphaFold2. It appears that none of these MSCs resemble the two MSCs that we have identified and characterized in <i>Plasmodium</i>. Indeed, tRip, the central protein involved in the association of the two <i>Plasmodium</i> MSCs is different from its homologues, suggesting also that the tRip-dependent import of exogenous tRNAs is not conserved in other apicomplexan parasites. Based on this observation, we searched for obvious differences that could explain the singularity of <i>Plasmodium</i> protein synthesis by comparing tRNA genes and amino acid usage in the different genomes. We noted a contradiction between the large number of asparagine residues used in <i>Plasmodium</i> proteomes and the single gene encoding the tRNA that inserts them into proteins. This observation remains true for all the <i>Plasmodia</i> strains studied, even those that do not contain long asparagine homorepeats.https://www.mdpi.com/2218-273X/14/1/46tRNAamino acid usageAlphaFold2 modelingmulti-synthetase complexestranslational control
spellingShingle José R. Jaramillo Ponce
Magali Frugier
<i>Plasmodium</i>, the <i>Apicomplexa</i> Outlier When It Comes to Protein Synthesis
Biomolecules
tRNA
amino acid usage
AlphaFold2 modeling
multi-synthetase complexes
translational control
title <i>Plasmodium</i>, the <i>Apicomplexa</i> Outlier When It Comes to Protein Synthesis
title_full <i>Plasmodium</i>, the <i>Apicomplexa</i> Outlier When It Comes to Protein Synthesis
title_fullStr <i>Plasmodium</i>, the <i>Apicomplexa</i> Outlier When It Comes to Protein Synthesis
title_full_unstemmed <i>Plasmodium</i>, the <i>Apicomplexa</i> Outlier When It Comes to Protein Synthesis
title_short <i>Plasmodium</i>, the <i>Apicomplexa</i> Outlier When It Comes to Protein Synthesis
title_sort i plasmodium i the i apicomplexa i outlier when it comes to protein synthesis
topic tRNA
amino acid usage
AlphaFold2 modeling
multi-synthetase complexes
translational control
url https://www.mdpi.com/2218-273X/14/1/46
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