Saccharomyces cerevisiae external and internal invertases have been amplified by introducing the normal and modified SUC2 genes into yeast multicopy plasmids, which were then used to transform a yeast strain resistant to repression by glucose. Amino acid compositional analysis of these enzymes, in addition to end group sequencing, confirmed the DNA sequence data of Taussig and Carlson (Taussig, R., and Carlson, M. (1983) Nucleic Acids Res. 11, 1943-1954), indicating that both enzymes were encoded in the same gene. Comparison of the properties of carbohydrate-containing external invertase and its nonglycosylated internal form revealed that although the carbohydrate did not appear to influence the conformation of the peptide backbone, as determined by circular dichroism analyses, its presence considerably enhanced the ability of guanidine HCl-denatured external invertase to be renatured relative to internal invertase. The Mr of the internal enzymes was found to be greatly dependent on pH with the enzyme being a monomer at pH 9.4, a dimer at pH 8.3, and an apparent octamer at pH 4.9.
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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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