Glutamyl tRNA synthetases and glutamic acid induce sexual differentiation of Schizosaccharomyces pombe

The moc3 gene was screened out as an inducer of sexual differentiation in fission yeast Schizosaccharomyces pombe. We isolated a novel gene, named ers2, encoding mitochondrial glutamyl tRNA synthetase (mGluRS) as a Moc3 interacting element by the yeast two-hybrid system. Cytoplasmic glutamyl tRNA sy...

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Veröffentlicht in:Bioscience, biotechnology, and biochemistry biotechnology, and biochemistry, 2009-06, Vol.73 (6), p.1339-1347
Hauptverfasser: Paul, S.K.(Shimane Univ., Matsue (Japan). Faculty of Life and Environmental Science), Goldar, Md.M, Yakura, M, Oowatari, Y, Kawamukai, M
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container_issue 6
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container_title Bioscience, biotechnology, and biochemistry
container_volume 73
creator Paul, S.K.(Shimane Univ., Matsue (Japan). Faculty of Life and Environmental Science)
Goldar, Md.M
Yakura, M
Oowatari, Y
Kawamukai, M
description The moc3 gene was screened out as an inducer of sexual differentiation in fission yeast Schizosaccharomyces pombe. We isolated a novel gene, named ers2, encoding mitochondrial glutamyl tRNA synthetase (mGluRS) as a Moc3 interacting element by the yeast two-hybrid system. Cytoplasmic glutamyl tRNA synthetase (cGluRS) also interacted with Moc3 in a yeast two-hybrid system. Disruption of ers1 (cGluRS) and of ers2 (mGluRS) indicated that these genes are both essential for the cell growth of S. pombe. We found that ers2 severely affected cell growth and decreased viability, but induced sexual differentiation of S. pombe when it was over-expressed. Over-expression of ers1 also stimulated sexual differentiation in S. pombe. These observations led us to test the effects of various amino acids on sexual differentiation. We found that glutamic acid, as well as other specific amino acids, such as tryptophan, methionine, and threonine, efficiently induced sexual differentiation in S. pombe. Our findings suggest a new regulatory mechanism where GluRSs and glutamic acid are involved in sexual differentiation in S. pombe.
doi_str_mv 10.1271/bbb.90005
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Over-expression of ers1 also stimulated sexual differentiation in S. pombe. These observations led us to test the effects of various amino acids on sexual differentiation. We found that glutamic acid, as well as other specific amino acids, such as tryptophan, methionine, and threonine, efficiently induced sexual differentiation in S. pombe. 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ispartof Bioscience, biotechnology, and biochemistry, 2009-06, Vol.73 (6), p.1339-1347
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subjects ACIDE GLUTAMIQUE
ACIDO GLUTAMICO
AISLAMIENTO
ARN DE TRANSFERENCIA
ARN DE TRANSFERT
Base Sequence
Biological and medical sciences
CELLS
CELLULE
CELULAS
CHEMICAL COMPOSITION
COMPOSICION QUIMICA
COMPOSITION CHIMIQUE
CRECIMIENTO
CROISSANCE
DIFERENCIACION SEXUAL
DIFFERENCIATION SEXUELLE
DNA Primers
Fundamental and applied biological sciences. Psychology
GENE
GENES
Genes, Fungal
GluRS
Glutamate-tRNA Ligase - genetics
Glutamate-tRNA Ligase - physiology
GLUTAMIC ACID
Glutamic Acid - physiology
GROWTH
ISOLATION
ISOLEMENT
MITOCHONDRIA
MITOCHONDRIE
MITOCONDRIA
Schizosaccharomyces - enzymology
Schizosaccharomyces - genetics
Schizosaccharomyces - growth & development
Schizosaccharomyces - physiology
SCHIZOSACCHAROMYCES POMBE
SEX DIFFERENTIATION
sexual differentiation
TRANSFER RNA
Two-Hybrid System Techniques
title Glutamyl tRNA synthetases and glutamic acid induce sexual differentiation of Schizosaccharomyces pombe
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