Members of the aspartase/fumarase superfamily share a common tertiary and quaternary fold, as well as a similar active site architecture; the superfamily includes aspartase, fumarase, argininosuccinate lyase, adenylosuccinate lyase, δ-crystallin, and 3-carboxy-cis,cis-muconate lactonizing enzyme (CMLE). These enzymes all process succinyl-containing substrates, leading to the formation of fumarate as the common product (except for the CMLE-catalyzed reaction, which results in the formation of a lactone). In the past few years, X-ray crystallographic analysis of several superfamily members in complex with substrate, product, or substrate analogues has provided detailed insights into their substrate binding modes and catalytic mechanisms. This structural work, combined with earlier mechanistic studies, revealed that members of the aspartase/fumarase superfamily use a common catalytic strategy, which involves general base-catalyzed formation of a stabilized aci-carboxylate (or enediolate) intermediate and the participation of a highly flexible loop, containing the signature sequence GSSxxPxKxN (named the SS loop), in substrate binding and catalysis.
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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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