2015
DOI: 10.1186/s12866-015-0536-z
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Evidence of cAMP involvement in cellobiohydrolase expression and secretion by Trichoderma reesei in presence of the inducer sophorose

Abstract: BackgroundThe signaling second messenger cyclic AMP (cAMP) regulates many aspects of cellular function in all organisms. Previous studies have suggested a role for cAMP in the regulation of gene expression of cellulolytic enzymes in Trichoderma reesei (anamorph of Hypocrea jecorina).MethodsThe effects of cAMP in T. reesei were analyzed through both activity and expression of cellulase, intracellular cAMP level measurement, western blotting, indirect immunofluorescence and confocal microscopy.ResultsTo elucidat… Show more

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Cited by 32 publications
(26 citation statements)
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“…The G-protein signaling network includes the phosducin-like protein PhLP1, and signal transduction is light-dependent with the PAS/LOV domain protein ENVOY as a central regulator (reviewed in [44]). The influence of cAMP levels and its signaling in cellulase expression has been investigated in a number of studies [45][46][47]. Furthermore, the MAP-kinases Tmk3, Tmk2, and TrIme2 have been reported to be involved in cellulase formation [48][49][50].…”
Section: Quantitative Secretomic and Transcriptomic Analysis As A Biomentioning
confidence: 99%
“…The G-protein signaling network includes the phosducin-like protein PhLP1, and signal transduction is light-dependent with the PAS/LOV domain protein ENVOY as a central regulator (reviewed in [44]). The influence of cAMP levels and its signaling in cellulase expression has been investigated in a number of studies [45][46][47]. Furthermore, the MAP-kinases Tmk3, Tmk2, and TrIme2 have been reported to be involved in cellulase formation [48][49][50].…”
Section: Quantitative Secretomic and Transcriptomic Analysis As A Biomentioning
confidence: 99%
“…crassa were transferred to nitrocellulose (GE Healthcare, Buckinghamshire, UK). Rabbit secondary antibodies and anti-cellulase- Trichoderma viride antibodies (LS-C147688, LifeSpan Biosciences, WA, USA) were used as previously described [28]. Antibodies were visualized by enhanced chemiluminescence (Santa Cruz Biotechnology, TX, USA).…”
Section: Methodsmentioning
confidence: 99%
“…Da mesma forma, as proteínas G e GTPases Ras podem modular a expressão de cbh1 na presença de celulose (WANG; NUSS, 1995;ZHANG et al, 2012). Além disso, as concentrações intracelulares de AMPc podem regular a expressão de genes de celulases dependendo da fonte de carbono do meio em que a célula se encontra (NOGUEIRA et al, 2015;SESTAK;FARKAS, 1993).…”
Section: As Vias De Sinalização E a Produção De Celulases Por T Reeseiunclassified
“…TMK1 também interage com duas proteínas fosfatases, sendo uma de dupla especificidade (ID 119697), possivelmente interferindo com a regulação transcricional da mesma; e duas de domínio Tyrfosfatase (ID 77689 e ID 25159). Além disso, na mesma predição, TMK1 se mostra diretamente envolvida na inibição de Ste12, um transativador transcricional envolvido na resposta a feromônios; e na inibição da adenilato-ciclase (acy1, ID 49183), mostrando o possível envolvimento de AMPc nas vias de sinalização envolvidas na produção de celulases, como demonstrado porNogueira et al (2015). Não obstante, TMK1 ainda se mostra envolvido na ativação direta e indireta (por meio de uma interação com o regulador da resposta a estresse celular, ID 47635) de uma proteína com domínio Hsp90 (ID 123114), ainda não descrita em literatura.…”
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