Distinct mechanism of activation of two transcription factors, AmyR and MalR, involved in amylolytic enzyme production in Aspergillus oryzae

Verfasser / Beitragende:
[Kuta Suzuki, Mizuki Tanaka, Yui Konno, Takanori Ichikawa, Sakurako Ichinose, Sachiko Hasegawa-Shiro, Takahiro Shintani, Katsuya Gomi]
Ort, Verlag, Jahr:
2015
Enthalten in:
Applied Microbiology and Biotechnology, 99/4(2015-02-01), 1805-1815
Format:
Artikel (online)
ID: 605503729
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024 7 0 |a 10.1007/s00253-014-6264-8  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00253-014-6264-8 
245 0 0 |a Distinct mechanism of activation of two transcription factors, AmyR and MalR, involved in amylolytic enzyme production in Aspergillus oryzae  |h [Elektronische Daten]  |c [Kuta Suzuki, Mizuki Tanaka, Yui Konno, Takanori Ichikawa, Sakurako Ichinose, Sachiko Hasegawa-Shiro, Takahiro Shintani, Katsuya Gomi] 
520 3 |a The production of amylolytic enzymes in Aspergillus oryzae is induced in the presence of starch or maltose, and two Zn2Cys6-type transcription factors, AmyR and MalR, are involved in this regulation. AmyR directly regulates the expression of amylase genes, and MalR controls the expression of maltose-utilizing (MAL) cluster genes. Deletion of malR gene resulted in poor growth on starch medium and reduction in α-amylase production level. To elucidate the activation mechanisms of these two transcription factors in amylase production, the expression profiles of amylases and MAL cluster genes under carbon catabolite derepression condition and subcellular localization of these transcription factors fused with a green fluorescent protein (GFP) were examined. Glucose, maltose, and isomaltose induced the expression of amylase genes, and GFP-AmyR was translocated from the cytoplasm to nucleus after the addition of these sugars. Rapid induction of amylase gene expression and nuclear localization of GFP-AmyR by isomaltose suggested that this sugar was the strongest inducer for AmyR activation. In contrast, GFP-MalR was constitutively localized in the nucleus and the expression of MAL cluster genes was induced by maltose, but not by glucose or isomaltose. In the presence of maltose, the expression of amylase genes was preceded by MAL cluster gene expression. Furthermore, deletion of the malR gene resulted in a significant decrease in the α-amylase activity induced by maltose, but had apparently no effect on the expression of α-amylase genes in the presence of isomaltose. These results suggested that activation of AmyR and MalR is regulated in a different manner, and the preceding activation of MalR is essential for the utilization of maltose as an inducer for AmyR activation. 
540 |a Springer-Verlag Berlin Heidelberg, 2014 
690 7 |a Aspergillus oryzae  |2 nationallicence 
690 7 |a Transcription factor  |2 nationallicence 
690 7 |a Gene expression regulation  |2 nationallicence 
690 7 |a Amylase gene  |2 nationallicence 
690 7 |a Nuclear localization  |2 nationallicence 
690 7 |a Inducing sugar  |2 nationallicence 
700 1 |a Suzuki  |D Kuta  |u Laboratory of Bioindustrial Genomics, Department of Bioindustrial Informatics and Genomics, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, 981-8555, Aoba-ku, Sendai, Japan  |4 aut 
700 1 |a Tanaka  |D Mizuki  |u Laboratory of Bioindustrial Genomics, Department of Bioindustrial Informatics and Genomics, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, 981-8555, Aoba-ku, Sendai, Japan  |4 aut 
700 1 |a Konno  |D Yui  |u Laboratory of Bioindustrial Genomics, Department of Bioindustrial Informatics and Genomics, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, 981-8555, Aoba-ku, Sendai, Japan  |4 aut 
700 1 |a Ichikawa  |D Takanori  |u Laboratory of Bioindustrial Genomics, Department of Bioindustrial Informatics and Genomics, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, 981-8555, Aoba-ku, Sendai, Japan  |4 aut 
700 1 |a Ichinose  |D Sakurako  |u Laboratory of Bioindustrial Genomics, Department of Bioindustrial Informatics and Genomics, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, 981-8555, Aoba-ku, Sendai, Japan  |4 aut 
700 1 |a Hasegawa-Shiro  |D Sachiko  |u Laboratory of Bioindustrial Genomics, Department of Bioindustrial Informatics and Genomics, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, 981-8555, Aoba-ku, Sendai, Japan  |4 aut 
700 1 |a Shintani  |D Takahiro  |u Laboratory of Bioindustrial Genomics, Department of Bioindustrial Informatics and Genomics, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, 981-8555, Aoba-ku, Sendai, Japan  |4 aut 
700 1 |a Gomi  |D Katsuya  |u Laboratory of Bioindustrial Genomics, Department of Bioindustrial Informatics and Genomics, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, 981-8555, Aoba-ku, Sendai, Japan  |4 aut 
773 0 |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/4(2015-02-01), 1805-1815  |x 0175-7598  |q 99:4<1805  |1 2015  |2 99  |o 253 
856 4 0 |u https://doi.org/10.1007/s00253-014-6264-8  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00253-014-6264-8  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Suzuki  |D Kuta  |u Laboratory of Bioindustrial Genomics, Department of Bioindustrial Informatics and Genomics, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, 981-8555, Aoba-ku, Sendai, Japan  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Tanaka  |D Mizuki  |u Laboratory of Bioindustrial Genomics, Department of Bioindustrial Informatics and Genomics, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, 981-8555, Aoba-ku, Sendai, Japan  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Konno  |D Yui  |u Laboratory of Bioindustrial Genomics, Department of Bioindustrial Informatics and Genomics, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, 981-8555, Aoba-ku, Sendai, Japan  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Ichikawa  |D Takanori  |u Laboratory of Bioindustrial Genomics, Department of Bioindustrial Informatics and Genomics, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, 981-8555, Aoba-ku, Sendai, Japan  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Ichinose  |D Sakurako  |u Laboratory of Bioindustrial Genomics, Department of Bioindustrial Informatics and Genomics, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, 981-8555, Aoba-ku, Sendai, Japan  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Hasegawa-Shiro  |D Sachiko  |u Laboratory of Bioindustrial Genomics, Department of Bioindustrial Informatics and Genomics, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, 981-8555, Aoba-ku, Sendai, Japan  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Shintani  |D Takahiro  |u Laboratory of Bioindustrial Genomics, Department of Bioindustrial Informatics and Genomics, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, 981-8555, Aoba-ku, Sendai, Japan  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Gomi  |D Katsuya  |u Laboratory of Bioindustrial Genomics, Department of Bioindustrial Informatics and Genomics, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, 981-8555, Aoba-ku, Sendai, Japan  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/4(2015-02-01), 1805-1815  |x 0175-7598  |q 99:4<1805  |1 2015  |2 99  |o 253