The PGL1 gene of the yeast Saccharomyces cerevisiae has been shown to encode polygalacturonase. Cloning of the PGL1 open reading frame behind the ADH1 promoter allowed overexpression of polygalacturonase activity in S. cerevisiae. This enzyme was purified to apparent homogeneity from cultures of recombinant S. cerevisiae on synthetic medium using one-step purification by anionic exchange chromatography. The enzyme, named Pgl1P, had an apparent M(r) of 42 kDa as shown by SDS-PAGE. Pgl1P was active from pH 3 to 5.5, with an optimum temperature at 25 degrees C. This enzyme hydrolyzed polygalacturonic acid as an endo-polygalacturonase as demonstrated by independent methods. The purified protein was N-glycosylated. However, the activity remained in the N-deglycosylated form. The N-terminal amino acid sequence was also determined as D-S-C-T-L-T-G-S-S-L.
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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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