Identification of Plasmodium falciparum nuclear proteins by mass spectrometry and proposed protein annotation.

The nuclear proteome of Plasmodium falciparum results from the continual shuttle of proteins between the cell cytoplasm-nucleus and vice versa. Using shotgun proteomics tools, we explored the nuclear proteins of mixed populations of Plasmodium falciparum extracted from infected erythrocytes. We comb...

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Main Authors: Sylvie Briquet, Asma Ourimi, Cédric Pionneau, Juliana Bernardes, Alessandra Carbone, Solenne Chardonnet, Catherine Vaquero
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2018-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC6209197?pdf=render
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author Sylvie Briquet
Asma Ourimi
Cédric Pionneau
Juliana Bernardes
Alessandra Carbone
Solenne Chardonnet
Catherine Vaquero
author_facet Sylvie Briquet
Asma Ourimi
Cédric Pionneau
Juliana Bernardes
Alessandra Carbone
Solenne Chardonnet
Catherine Vaquero
author_sort Sylvie Briquet
collection DOAJ
description The nuclear proteome of Plasmodium falciparum results from the continual shuttle of proteins between the cell cytoplasm-nucleus and vice versa. Using shotgun proteomics tools, we explored the nuclear proteins of mixed populations of Plasmodium falciparum extracted from infected erythrocytes. We combined GeLC-MS/MS and 2D-LC-MS/MS with a peptide ion exclusion procedure in order to increase the detection of low abundant proteins such as those involved in gene expression. We have identified 446 nuclear proteins covering all expected nuclear protein families involved in gene regulation. All structural ribosomal (40S and 60S) proteins were identified which is consistent with the nuclear localization of ribosomal biogenesis. Proteins involved in the translation machinery were also found suggesting that translational events might occur in the nucleus in P. falciparum as previously hypothesized in eukaryotes. These data were compared to the protein list established by PlasmoDB and submitted to Plasmobase a recently reported Plasmodium annotation website to propose new functional putative annotation of several unknown proteins found in the nuclear extracts.
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spelling doaj.art-7d1ec337a8b54c7483b8693cfaecb7942022-12-22T01:41:01ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-011310e020559610.1371/journal.pone.0205596Identification of Plasmodium falciparum nuclear proteins by mass spectrometry and proposed protein annotation.Sylvie BriquetAsma OurimiCédric PionneauJuliana BernardesAlessandra CarboneSolenne ChardonnetCatherine VaqueroThe nuclear proteome of Plasmodium falciparum results from the continual shuttle of proteins between the cell cytoplasm-nucleus and vice versa. Using shotgun proteomics tools, we explored the nuclear proteins of mixed populations of Plasmodium falciparum extracted from infected erythrocytes. We combined GeLC-MS/MS and 2D-LC-MS/MS with a peptide ion exclusion procedure in order to increase the detection of low abundant proteins such as those involved in gene expression. We have identified 446 nuclear proteins covering all expected nuclear protein families involved in gene regulation. All structural ribosomal (40S and 60S) proteins were identified which is consistent with the nuclear localization of ribosomal biogenesis. Proteins involved in the translation machinery were also found suggesting that translational events might occur in the nucleus in P. falciparum as previously hypothesized in eukaryotes. These data were compared to the protein list established by PlasmoDB and submitted to Plasmobase a recently reported Plasmodium annotation website to propose new functional putative annotation of several unknown proteins found in the nuclear extracts.http://europepmc.org/articles/PMC6209197?pdf=render
spellingShingle Sylvie Briquet
Asma Ourimi
Cédric Pionneau
Juliana Bernardes
Alessandra Carbone
Solenne Chardonnet
Catherine Vaquero
Identification of Plasmodium falciparum nuclear proteins by mass spectrometry and proposed protein annotation.
PLoS ONE
title Identification of Plasmodium falciparum nuclear proteins by mass spectrometry and proposed protein annotation.
title_full Identification of Plasmodium falciparum nuclear proteins by mass spectrometry and proposed protein annotation.
title_fullStr Identification of Plasmodium falciparum nuclear proteins by mass spectrometry and proposed protein annotation.
title_full_unstemmed Identification of Plasmodium falciparum nuclear proteins by mass spectrometry and proposed protein annotation.
title_short Identification of Plasmodium falciparum nuclear proteins by mass spectrometry and proposed protein annotation.
title_sort identification of plasmodium falciparum nuclear proteins by mass spectrometry and proposed protein annotation
url http://europepmc.org/articles/PMC6209197?pdf=render
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