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Inamura SI, Tanabe T, Kawamukai M, Matsuo Y. Expression of Mug14 is regulated by the transcription factor Rst2 through the cAMP-dependent protein kinase pathway in Schizosaccharomyces pombe. Curr Genet 2021; 67:807-821. [PMID: 34086083 DOI: 10.1007/s00294-021-01194-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 05/26/2021] [Accepted: 05/28/2021] [Indexed: 01/04/2023]
Abstract
The cAMP-dependent protein kinase (Pka1) regulates many cellular events, including sexual development and glycogenesis, and response to the limitation of glucose, in Schizosaccharomyces pombe. Despite its importance in many cellular events, the targets of the cAMP/PKA pathway have not been fully investigated. Here, we demonstrate that the expression of mug14 is induced by downregulation of the cAMP/PKA pathway and limitation of glucose. This regulation is dependent on the function of Rst2, a transcription factor that regulates transition from mitosis to meiosis. The loss of the C2H2-type zinc finger domain in Rst2, termed Rst2 (C2H2∆), abolished the induction of Mug14 expression. Upon deletion of the stress starvation response element of the S. pombe (STREP: CCCCTC) sequence, which is a potential binding site of Rst2 on mug14, in the pka1∆ strain, its induction was abolished. The expression of Mug14 was significantly reduced and delayed by the limitation of glucose and also by nitrogen starvation in the rst2∆ strain. Mug14 is known to share a common function with Mde1 and Mta3 in the methionine salvage pathway, but the expression of mde1 and mta3 mRNAs was not enhanced by pka1 deletion and limitation of glucose. We conclude that the expression of Mug14 is upregulated by Rst2 under the control of the cAMP/PKA signaling pathway, which senses the limitation of glucose.
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Affiliation(s)
- Shin-Ich Inamura
- Graduate School of Natural Science and Technology, Shimane University, Matsue, 690-8504, Japan
| | - Takuma Tanabe
- Department of Life Sciences, Faculty of Life and Environmental Sciences, Shimane University, Matsue, 690-8504, Japan
| | - Makoto Kawamukai
- Graduate School of Natural Science and Technology, Shimane University, Matsue, 690-8504, Japan.,Department of Life Sciences, Faculty of Life and Environmental Sciences, Shimane University, Matsue, 690-8504, Japan.,Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, Matsue, 690-8504, Japan
| | - Yasuhiro Matsuo
- Graduate School of Natural Science and Technology, Shimane University, Matsue, 690-8504, Japan. .,Department of Life Sciences, Faculty of Life and Environmental Sciences, Shimane University, Matsue, 690-8504, Japan. .,Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, Matsue, 690-8504, Japan.
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Tong P, Pidoux AL, Toda NRT, Ard R, Berger H, Shukla M, Torres-Garcia J, Müller CA, Nieduszynski CA, Allshire RC. Interspecies conservation of organisation and function between nonhomologous regional centromeres. Nat Commun 2019; 10:2343. [PMID: 31138803 PMCID: PMC6538654 DOI: 10.1038/s41467-019-09824-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 03/27/2019] [Indexed: 01/31/2023] Open
Abstract
Despite the conserved essential function of centromeres, centromeric DNA itself is not conserved. The histone-H3 variant, CENP-A, is the epigenetic mark that specifies centromere identity. Paradoxically, CENP-A normally assembles on particular sequences at specific genomic locations. To gain insight into the specification of complex centromeres, here we take an evolutionary approach, fully assembling genomes and centromeres of related fission yeasts. Centromere domain organization, but not sequence, is conserved between Schizosaccharomyces pombe, S. octosporus and S. cryophilus with a central CENP-ACnp1 domain flanked by heterochromatic outer-repeat regions. Conserved syntenic clusters of tRNA genes and 5S rRNA genes occur across the centromeres of S. octosporus and S. cryophilus, suggesting conserved function. Interestingly, nonhomologous centromere central-core sequences from S. octosporus and S. cryophilus are recognized in S. pombe, resulting in cross-species establishment of CENP-ACnp1 chromatin and functional kinetochores. Therefore, despite the lack of sequence conservation, Schizosaccharomyces centromere DNA possesses intrinsic conserved properties that promote assembly of CENP-A chromatin.
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Affiliation(s)
- Pin Tong
- 0000 0004 1936 7988grid.4305.2Wellcome Centre for Cell Biology and Institute of Cell Biology, School of Biological Sciences, The University of Edinburgh, Mayfield Road, Edinburgh, EH9 3BF UK
| | - Alison L. Pidoux
- 0000 0004 1936 7988grid.4305.2Wellcome Centre for Cell Biology and Institute of Cell Biology, School of Biological Sciences, The University of Edinburgh, Mayfield Road, Edinburgh, EH9 3BF UK
| | - Nicholas R. T. Toda
- 0000 0004 1936 7988grid.4305.2Wellcome Centre for Cell Biology and Institute of Cell Biology, School of Biological Sciences, The University of Edinburgh, Mayfield Road, Edinburgh, EH9 3BF UK ,0000 0001 2203 0006grid.464101.6Present Address: UPMC CNRS, Roscoff Marine Station, Place Georges Teissier, 29680 Roscoff, France
| | - Ryan Ard
- 0000 0004 1936 7988grid.4305.2Wellcome Centre for Cell Biology and Institute of Cell Biology, School of Biological Sciences, The University of Edinburgh, Mayfield Road, Edinburgh, EH9 3BF UK ,0000 0001 0674 042Xgrid.5254.6Present Address: Copenhagen Plant Science Centre, University of Copenhagen, Bülowsvej 34, 1870 Frederiksberg C, Denmark
| | - Harald Berger
- 0000 0004 1936 7988grid.4305.2Wellcome Centre for Cell Biology and Institute of Cell Biology, School of Biological Sciences, The University of Edinburgh, Mayfield Road, Edinburgh, EH9 3BF UK ,0000 0001 2298 5320grid.5173.0Present Address: Symbiocyte, Universität für Bodenkultur Wien, University of Natural Resources and Life Sciences, 1180 Vienna, Austria
| | - Manu Shukla
- 0000 0004 1936 7988grid.4305.2Wellcome Centre for Cell Biology and Institute of Cell Biology, School of Biological Sciences, The University of Edinburgh, Mayfield Road, Edinburgh, EH9 3BF UK
| | - Jesus Torres-Garcia
- 0000 0004 1936 7988grid.4305.2Wellcome Centre for Cell Biology and Institute of Cell Biology, School of Biological Sciences, The University of Edinburgh, Mayfield Road, Edinburgh, EH9 3BF UK
| | - Carolin A. Müller
- 0000 0004 1936 8948grid.4991.5Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxford, OX1 3RE UK
| | - Conrad A. Nieduszynski
- 0000 0004 1936 8948grid.4991.5Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxford, OX1 3RE UK
| | - Robin C. Allshire
- 0000 0004 1936 7988grid.4305.2Wellcome Centre for Cell Biology and Institute of Cell Biology, School of Biological Sciences, The University of Edinburgh, Mayfield Road, Edinburgh, EH9 3BF UK
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Hayles J, Nurse P. Introduction to Fission Yeast as a Model System. Cold Spring Harb Protoc 2018; 2018:pdb.top079749. [PMID: 28733415 DOI: 10.1101/pdb.top079749] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Here, we briefly outline the history of fission yeast, its life cycle, and aspects of its biology that make it a useful model organism for studying problems of eukaryotic molecular and cell biology.
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Affiliation(s)
- Jacqueline Hayles
- Cell Cycle Laboratory, The Francis Crick Research Institute, London WC2A 3LY, United Kingdom
| | - Paul Nurse
- Cell Cycle Laboratory, The Francis Crick Research Institute, London WC2A 3LY, United Kingdom
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Abstract
Live cell imaging complements the array of biochemical and molecular genetic approaches to provide a comprehensive insight into functional dependencies and molecular interactions in fission yeast. Fluorescent proteins and vital dyes reveal dynamic changes in the spatial distribution of organelles and the proteome and how each alters in response to changes in environmental and genetic composition. This introduction discusses key issues and basic image analysis for live cell imaging of fission yeast.
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Affiliation(s)
- Daniel P Mulvihill
- School of Biosciences, University of Kent, Canterbury, Kent CT2 7NJ, United Kingdom
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5
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Pasula RR, Lim S. Engineering nanoparticle synthesis using microbial factories. ENGINEERING BIOLOGY 2017. [DOI: 10.1049/enb.2017.0009] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Rupali Reddy Pasula
- School of Chemical and Biomedical Engineering Nanyang Technological University 70 Nanyang Dr., Block N1.3 Singapore 637457 Singapore
| | - Sierin Lim
- School of Chemical and Biomedical Engineering Nanyang Technological University 70 Nanyang Dr., Block N1.3 Singapore 637457 Singapore
- NTU‐Northwestern Institute for Nanomedicine Nanyang Technological University 50 Nanyang Dr., Block N3.1 Singapore 637553 Singapore
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Grallert A, Hagan IM. Small-Scale Immunoprecipitation from Fission Yeast Cell Extracts. Cold Spring Harb Protoc 2017; 2017:2017/2/pdb.prot091587. [PMID: 28148852 DOI: 10.1101/pdb.prot091587] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
We describe procedures for the immunoprecipitation (IP) of a molecule of interest from cell extracts under native or denaturing conditions. The methods are equally effective with antibodies that directly recognize the molecule of interest and those that recognize a generic peptide "epitope tag" that has been fused to sequences encoding the gene of interest. The diverse chemistry of intermolecular interactions and enzymatic activities means that a range of different buffer conditions must be assessed empirically to identify optimal conditions for the study of a specific target/complex in a particular assay. We describe three buffers that can serve as starting points for this empirical testing and discuss modifications that are commonly used in the optimization of assays based on immunoprecipitation.
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Affiliation(s)
- Agnes Grallert
- CRUK Cell Division Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester M20 4BX, United Kingdom
| | - Iain M Hagan
- CRUK Cell Division Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester M20 4BX, United Kingdom
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Cam HP, Whitehall S. Analysis of Heterochromatin in Schizosaccharomyces pombe. Cold Spring Harb Protoc 2016; 2016:2016/11/pdb.top079889. [PMID: 27803258 DOI: 10.1101/pdb.top079889] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This introduction briefly describes the biology of heterochromatin in the fission yeast Schizosaccharomyces pombe We highlight some of the salient features of fission yeast that render it an excellent unicellular eukaryote for studying heterochromatin. We then discuss key aspects of heterochromatin that are of interest to those in the field, and last we introduce experimental approaches often used to investigate heterochromatin.
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Affiliation(s)
- Hugh P Cam
- Biology Department, Boston College, Chestnut Hill, Massachusetts 02467
| | - Simon Whitehall
- Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle NE2 4HH, United Kingdom
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