The kinetic mechanism of yeast phosphoenolpyruvate carboxykinase, in the physiological direction, has been determined. Product inhibition using KHCO3 showed competitive inhibition, when both oxalacetate (OAA) and ATP were varied. Phosphoenolpyruvate showed noncompetitive inhibition against OAA, and competitive inhibition with respect to ATP. Conversely, ADP showed competitive inhibition against OAA and noncompetitive inhibition vs. ATP. Dead-end inhibition studies with beta-sulfopyruvate showed competitive inhibition against OAA and noncompetitive inhibition vs. ATP. Ethene-ATP exhibited competitive inhibition against ATP and noncompetitive inhibition with respect to OAA. These results are consistent with a random Bi-Ter mechanism with the formation of two abortive complexes: enzyme-ATP-ADP and enzyme-OAA-PEP.
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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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