Mutant Arg76Gln and Lys290Gln Saccharomyces cerevisiae phosphoenolpyruvate carboxykinases have been prepared and analyzed. No alteration in the apparent kinetic constants were detected for the Arg76Gln mutant enzyme, while the Lys290Gln mutant showed a 12-fold decrease in V(max)/K(m)ADP. These results indicate that Arg76 is not involved in CO2 binding, but support the hypothesis that the binding of this substrate induces a conformational change that protects the region around Arg76 from trypsin action [Herrera et al. (1993) J. Protein Chem. 12, 413-418]. These findings also indicate that Lys290, a highly reactive residue against pyrydoxal phosphate [Bazaes et al. (1995), FEBS Lett. 360, 207-210], does not perform an essential function for the enzyme activity.
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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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