System-wide responses to heterologous protein production in the fungus Trichoderma reesei

Mikko Arvas, Jari Rautio, Bart Smit, Tiina Pakula, K. Lanthaler, G. Robson, Markku Saloheimo, Merja Penttilä

Research output: Contribution to conferenceConference articleScientific

Abstract

Trichoderma reesei is an industrial protein production host famous for its exceptional protein secretion capability. Protein production can cause stress to cells by compromised protein folding or transport in the secretory pathway. T. reesei is known to respond to secretion stress by unfolded protein response (UPR) and repression through secretion stress (RESS). We have studied the effects of heterologous protein production in bioreactor cultivations on the transcriptome and proteome of T. reesei. As an example of secreted and UPR causing protein, a transformant producing human tissue plasminogen activator (tPA), was studied with semi-genomic transcription profiling methods, cDNA subtraction libraries and cDNA-AFLP and 2D proteomics. In addition effect of chemical dithiothreitol (DTT) and a transformant over-expressing IREI protein (UPR pathway sensor protein) were analysed. Data from various secretion stress transcription profiling experiments in S. cerevisiae were combined from literature and compared to results from T. reesei. The transcriptional responses of T. reesei and S. cerevisiae show clear overlap, especially with UPR related genes involved in protein translocation, folding and glycosylation in the ER, but also some interesting differences. As an example of a protein causing no UPR, a transformant producing Melanocarpus albomyces laccase was studied with oligonucleotide microarrays. Moderate downregulation of secreted proteins was detected.
Original languageEnglish
Publication statusPublished - 2005
EventAnnual Scientific Meeting of British Mycological Society: Exploitation of Fungi - Manchester, United Kingdom
Duration: 5 Sep 20058 Sep 2005

Conference

ConferenceAnnual Scientific Meeting of British Mycological Society
CountryUnited Kingdom
CityManchester
Period5/09/058/09/05

Fingerprint

Trichoderma reesei
unfolded protein response
fungi
proteins
protein transport
secretion
transcription (genetics)
t-plasminogen activator
protein secretion
protein folding
dithiothreitol
laccase
glycosylation
bioreactors
oligonucleotides
proteome
heterologous gene expression
transcriptome
cDNA libraries
proteomics

Cite this

Arvas, M., Rautio, J., Smit, B., Pakula, T., Lanthaler, K., Robson, G., ... Penttilä, M. (2005). System-wide responses to heterologous protein production in the fungus Trichoderma reesei. Paper presented at Annual Scientific Meeting of British Mycological Society, Manchester, United Kingdom.
Arvas, Mikko ; Rautio, Jari ; Smit, Bart ; Pakula, Tiina ; Lanthaler, K. ; Robson, G. ; Saloheimo, Markku ; Penttilä, Merja. / System-wide responses to heterologous protein production in the fungus Trichoderma reesei. Paper presented at Annual Scientific Meeting of British Mycological Society, Manchester, United Kingdom.
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abstract = "Trichoderma reesei is an industrial protein production host famous for its exceptional protein secretion capability. Protein production can cause stress to cells by compromised protein folding or transport in the secretory pathway. T. reesei is known to respond to secretion stress by unfolded protein response (UPR) and repression through secretion stress (RESS). We have studied the effects of heterologous protein production in bioreactor cultivations on the transcriptome and proteome of T. reesei. As an example of secreted and UPR causing protein, a transformant producing human tissue plasminogen activator (tPA), was studied with semi-genomic transcription profiling methods, cDNA subtraction libraries and cDNA-AFLP and 2D proteomics. In addition effect of chemical dithiothreitol (DTT) and a transformant over-expressing IREI protein (UPR pathway sensor protein) were analysed. Data from various secretion stress transcription profiling experiments in S. cerevisiae were combined from literature and compared to results from T. reesei. The transcriptional responses of T. reesei and S. cerevisiae show clear overlap, especially with UPR related genes involved in protein translocation, folding and glycosylation in the ER, but also some interesting differences. As an example of a protein causing no UPR, a transformant producing Melanocarpus albomyces laccase was studied with oligonucleotide microarrays. Moderate downregulation of secreted proteins was detected.",
author = "Mikko Arvas and Jari Rautio and Bart Smit and Tiina Pakula and K. Lanthaler and G. Robson and Markku Saloheimo and Merja Penttil{\"a}",
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Arvas, M, Rautio, J, Smit, B, Pakula, T, Lanthaler, K, Robson, G, Saloheimo, M & Penttilä, M 2005, 'System-wide responses to heterologous protein production in the fungus Trichoderma reesei' Paper presented at Annual Scientific Meeting of British Mycological Society, Manchester, United Kingdom, 5/09/05 - 8/09/05, .

System-wide responses to heterologous protein production in the fungus Trichoderma reesei. / Arvas, Mikko; Rautio, Jari; Smit, Bart; Pakula, Tiina; Lanthaler, K.; Robson, G.; Saloheimo, Markku; Penttilä, Merja.

2005. Paper presented at Annual Scientific Meeting of British Mycological Society, Manchester, United Kingdom.

Research output: Contribution to conferenceConference articleScientific

TY - CONF

T1 - System-wide responses to heterologous protein production in the fungus Trichoderma reesei

AU - Arvas, Mikko

AU - Rautio, Jari

AU - Smit, Bart

AU - Pakula, Tiina

AU - Lanthaler, K.

AU - Robson, G.

AU - Saloheimo, Markku

AU - Penttilä, Merja

N1 - CA2: BEL2 CA: BEL

PY - 2005

Y1 - 2005

N2 - Trichoderma reesei is an industrial protein production host famous for its exceptional protein secretion capability. Protein production can cause stress to cells by compromised protein folding or transport in the secretory pathway. T. reesei is known to respond to secretion stress by unfolded protein response (UPR) and repression through secretion stress (RESS). We have studied the effects of heterologous protein production in bioreactor cultivations on the transcriptome and proteome of T. reesei. As an example of secreted and UPR causing protein, a transformant producing human tissue plasminogen activator (tPA), was studied with semi-genomic transcription profiling methods, cDNA subtraction libraries and cDNA-AFLP and 2D proteomics. In addition effect of chemical dithiothreitol (DTT) and a transformant over-expressing IREI protein (UPR pathway sensor protein) were analysed. Data from various secretion stress transcription profiling experiments in S. cerevisiae were combined from literature and compared to results from T. reesei. The transcriptional responses of T. reesei and S. cerevisiae show clear overlap, especially with UPR related genes involved in protein translocation, folding and glycosylation in the ER, but also some interesting differences. As an example of a protein causing no UPR, a transformant producing Melanocarpus albomyces laccase was studied with oligonucleotide microarrays. Moderate downregulation of secreted proteins was detected.

AB - Trichoderma reesei is an industrial protein production host famous for its exceptional protein secretion capability. Protein production can cause stress to cells by compromised protein folding or transport in the secretory pathway. T. reesei is known to respond to secretion stress by unfolded protein response (UPR) and repression through secretion stress (RESS). We have studied the effects of heterologous protein production in bioreactor cultivations on the transcriptome and proteome of T. reesei. As an example of secreted and UPR causing protein, a transformant producing human tissue plasminogen activator (tPA), was studied with semi-genomic transcription profiling methods, cDNA subtraction libraries and cDNA-AFLP and 2D proteomics. In addition effect of chemical dithiothreitol (DTT) and a transformant over-expressing IREI protein (UPR pathway sensor protein) were analysed. Data from various secretion stress transcription profiling experiments in S. cerevisiae were combined from literature and compared to results from T. reesei. The transcriptional responses of T. reesei and S. cerevisiae show clear overlap, especially with UPR related genes involved in protein translocation, folding and glycosylation in the ER, but also some interesting differences. As an example of a protein causing no UPR, a transformant producing Melanocarpus albomyces laccase was studied with oligonucleotide microarrays. Moderate downregulation of secreted proteins was detected.

M3 - Conference article

ER -

Arvas M, Rautio J, Smit B, Pakula T, Lanthaler K, Robson G et al. System-wide responses to heterologous protein production in the fungus Trichoderma reesei. 2005. Paper presented at Annual Scientific Meeting of British Mycological Society, Manchester, United Kingdom.