Adaptation of cells to acetic acid requires a hitherto unknown number of proteins. Studies on the GPR1 gene and its encoded protein in the ascomycetous fungus Yarrowia lipolytica have revealed an involvement of this protein in the molecular processes of adaptation to acetic acid. Gpr1p belongs to a novel family of conserved proteins in prokaryotic and eukaryotic organisms that is characterized by the two motifs (A/G)NPAPLGL and SYG(X)FW (GPR1_FUN34_YaaH protein family). Analysis of four trans-dominant mutations and N-terminal deletion analysis of Gpr1p identified the amino acid sequence FGGTLN important for function of this protein in Y. lipolytica. Deletion of GPR1 slowed down adaptation to acetic acid, but had no effect on growth in the presence of acetic acid. Expression of GPR1 is induced by acetic acid and moderately repressed by glucose. It was shown by subcellular fractionation that Gpr1p is an integral membrane protein, which is also suggested by the presence of five to six putative transmembrane spanning regions. Fluorescence microscopy confirmed a localization to the plasma membrane. A model is presented describing a hypothetical function of Gpr1p during adaptation to acetic acid.
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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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