Acetyl-coenzyme A synthetase (ACS) belongs to the family of AMP-forming enzymes that also includes acyl-CoA synthetases, firefly luciferase, and nonribosomal peptide synthetases. ACS catalyzes the two-step activation of acetate to acetyl-CoA: formation of an acetyl-AMP intermediate from acetate and ATP and the transfer of the acetyl group to CoA. In mammals, the acetyl-CoA product is used for biosynthesis of long chain fatty acids as well as energy production. We have determined the crystal structure of yeast ACS in a binary complex with AMP at 2.3 A resolution. The structure contains a large, N-terminal domain and a small, C-terminal domain. AMP is bound at the interface between the two domains. This structure represents a new conformation for the ACS enzyme, which may be competent for catalyzing the first step of the reaction. A Lys residue that is critical for this step is located in the active site. A rotation of 140 degrees in the small domain is needed for the binding of CoA and the catalysis of the second step. In contrast to the monomeric bacterial enzyme, yeast ACS is a stable trimer.
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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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