The methylotrophic yeast Pichia pastoris (syn. Komagataella spp.) is one of the most important production systems for heterologous proteins. After the first genome sequences were published in 2009, tremendous effort was made to establish systems-level analytical methods. Methylotrophic lifestyle was one of the most thoroughly investigated topics, studied at the levels of transcriptome, proteome and metabolic flux. Also the responses of P. pastoris to environmental stress conditions experienced during high cell density production processes were studied. Metabolomics and flux analysis revealed the plasticity of the cellular metabolism in its adaption to the production of foreign proteins and served as blueprints for subsequent cell engineering and/or process design. The transcriptional response elicited by overexpression of heterologous proteins seems to depend on the nature and complexity of the recombinant product. Based on these data, novel targets for strain engineering could be deduced from transcriptomics and proteomics data mining and effectively enhanced protein secretion. Transcriptional regulation data also served as a valuable resource to identify novel promoters with the desired regulatory characteristics. This review aims to provide a comprehensive overview of systems biology applications in P. pastoris ranging from increased understanding of cell physiology to improving recombinant protein production in this cell factory.
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| Evidence ID | Analyze ID | Gene/Complex | Systematic Name/Complex Accession | Qualifier | Gene Ontology Term ID | Gene Ontology Term | Aspect | Annotation Extension | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Phenotype | Experiment Type | Experiment Type Category | Mutant Information | Strain Background | Chemical | Details | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Disease Ontology Term | Disease Ontology Term ID | Qualifier | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Regulator | Regulator Systematic Name | Target | Target Systematic Name | Direction | Regulation of | Happens During | Regulator Type | Direction | Regulation Of | Happens During | Method | Evidence | Strain Background | Reference |
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| Site | Modification | Modifier | Source | Reference |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Allele | Assay | Annotation | Action | Phenotype | SGA score | P-value | Source | Reference | Note |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Assay | Annotation | Action | Modification | Source | Reference | Note |
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| Complement ID | Locus ID | Gene | Species | Gene ID | Strain background | Direction | Details | Source | Reference |
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| Evidence ID | Analyze ID | Dataset | Description | Keywords | Number of Conditions | Reference |
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