The nematode homologue of Mediator complex subunit 28, F28F8.5, is a critical regulator of C. elegans development

The evolutionarily conserved Mediator complex is a critical player in regulating transcription. Comprised of approximately two dozen proteins, the Mediator integrates diverse regulatory signals through direct protein-protein interactions that, in turn, modulate the influence of Mediator on RNA Polym...

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Main Authors: Markéta Kostrouchová, David Kostrouch, Ahmed A. Chughtai, Filip Kaššák, Jan P. Novotný, Veronika Kostrouchová, Aleš Benda, Michael W. Krause, Vladimír Saudek, Marta Kostrouchová, Zdeněk Kostrouch
Format: Article
Language:English
Published: PeerJ Inc. 2017-06-01
Series:PeerJ
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Online Access:https://peerj.com/articles/3390.pdf
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author Markéta Kostrouchová
David Kostrouch
Ahmed A. Chughtai
Filip Kaššák
Jan P. Novotný
Veronika Kostrouchová
Aleš Benda
Michael W. Krause
Vladimír Saudek
Marta Kostrouchová
Zdeněk Kostrouch
author_facet Markéta Kostrouchová
David Kostrouch
Ahmed A. Chughtai
Filip Kaššák
Jan P. Novotný
Veronika Kostrouchová
Aleš Benda
Michael W. Krause
Vladimír Saudek
Marta Kostrouchová
Zdeněk Kostrouch
author_sort Markéta Kostrouchová
collection DOAJ
description The evolutionarily conserved Mediator complex is a critical player in regulating transcription. Comprised of approximately two dozen proteins, the Mediator integrates diverse regulatory signals through direct protein-protein interactions that, in turn, modulate the influence of Mediator on RNA Polymerase II activity. One Mediator subunit, MED28, is known to interact with cytoplasmic structural proteins, providing a potential direct link between cytoplasmic dynamics and the control of gene transcription. Although identified in many animals and plants, MED28 is not present in yeast; no bona fide MED28 has been described previously in Caenorhabditis elegans. Here, we identify bioinformatically F28F8.5, an uncharacterized predicted protein, as the nematode homologue of MED28. As in other Metazoa, F28F8.5 has dual nuclear and cytoplasmic localization and plays critical roles in the regulation of development. F28F8.5 is a vital gene and its null mutants have severely malformed gonads and do not reproduce. F28F8.5 interacts on the protein level with the Mediator subunits MDT-6 and MDT-30. Our results indicate that F28F8.5 is an orthologue of MED28 and suggest that the potential to link cytoplasmic and nuclear events is conserved between MED28 vertebrate and nematode orthologues.
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spelling doaj.art-3fd1b7a6270249538fa62b81c1e9027b2023-12-03T06:52:20ZengPeerJ Inc.PeerJ2167-83592017-06-015e339010.7717/peerj.3390The nematode homologue of Mediator complex subunit 28, F28F8.5, is a critical regulator of C. elegans developmentMarkéta Kostrouchová0David Kostrouch1Ahmed A. Chughtai2Filip Kaššák3Jan P. Novotný4Veronika Kostrouchová5Aleš Benda6Michael W. Krause7Vladimír Saudek8Marta Kostrouchová9Zdeněk Kostrouch10Biocev, First Faculty of Medicine, Charles University, Prague, Czech RepublicBiocev, First Faculty of Medicine, Charles University, Prague, Czech RepublicBiocev, First Faculty of Medicine, Charles University, Prague, Czech RepublicBiocev, First Faculty of Medicine, Charles University, Prague, Czech RepublicBiocev, First Faculty of Medicine, Charles University, Prague, Czech RepublicBiocev, First Faculty of Medicine, Charles University, Prague, Czech RepublicImaging Methods Core Facility, BIOCEV, Faculty of Science, Charles University, Prague, Czech RepublicLaboratory of Molecular Biology, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USAMetabolic Research Laboratories, Wellcome Trust-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, UKBiocev, First Faculty of Medicine, Charles University, Prague, Czech RepublicBiocev, First Faculty of Medicine, Charles University, Prague, Czech RepublicThe evolutionarily conserved Mediator complex is a critical player in regulating transcription. Comprised of approximately two dozen proteins, the Mediator integrates diverse regulatory signals through direct protein-protein interactions that, in turn, modulate the influence of Mediator on RNA Polymerase II activity. One Mediator subunit, MED28, is known to interact with cytoplasmic structural proteins, providing a potential direct link between cytoplasmic dynamics and the control of gene transcription. Although identified in many animals and plants, MED28 is not present in yeast; no bona fide MED28 has been described previously in Caenorhabditis elegans. Here, we identify bioinformatically F28F8.5, an uncharacterized predicted protein, as the nematode homologue of MED28. As in other Metazoa, F28F8.5 has dual nuclear and cytoplasmic localization and plays critical roles in the regulation of development. F28F8.5 is a vital gene and its null mutants have severely malformed gonads and do not reproduce. F28F8.5 interacts on the protein level with the Mediator subunits MDT-6 and MDT-30. Our results indicate that F28F8.5 is an orthologue of MED28 and suggest that the potential to link cytoplasmic and nuclear events is conserved between MED28 vertebrate and nematode orthologues.https://peerj.com/articles/3390.pdfGene expression regulationCaenorhabditis elegansDevelopmentEvolutionMediator complexMED28
spellingShingle Markéta Kostrouchová
David Kostrouch
Ahmed A. Chughtai
Filip Kaššák
Jan P. Novotný
Veronika Kostrouchová
Aleš Benda
Michael W. Krause
Vladimír Saudek
Marta Kostrouchová
Zdeněk Kostrouch
The nematode homologue of Mediator complex subunit 28, F28F8.5, is a critical regulator of C. elegans development
PeerJ
Gene expression regulation
Caenorhabditis elegans
Development
Evolution
Mediator complex
MED28
title The nematode homologue of Mediator complex subunit 28, F28F8.5, is a critical regulator of C. elegans development
title_full The nematode homologue of Mediator complex subunit 28, F28F8.5, is a critical regulator of C. elegans development
title_fullStr The nematode homologue of Mediator complex subunit 28, F28F8.5, is a critical regulator of C. elegans development
title_full_unstemmed The nematode homologue of Mediator complex subunit 28, F28F8.5, is a critical regulator of C. elegans development
title_short The nematode homologue of Mediator complex subunit 28, F28F8.5, is a critical regulator of C. elegans development
title_sort nematode homologue of mediator complex subunit 28 f28f8 5 is a critical regulator of c elegans development
topic Gene expression regulation
Caenorhabditis elegans
Development
Evolution
Mediator complex
MED28
url https://peerj.com/articles/3390.pdf
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