A cDNA from Cryptococcus neoformans, encoding imidazole glycerol phosphate dehydratase (IGPD), was isolated by complementation of a his3 mutant strain of Saccharomyces cerevisiae. The C. neoformans HIS3 cDNA encodes an approx. 22-kDa protein with a high degree of amino-acid sequence similarity to IGPDs from ten other microorganisms, as well as Arabidopsis thaliana. Most striking are two conserved HHXXE regions and several conserved His, Asp and Glu residues. The cDNA was engineered for expression in Escherichia coli and an approx. 26-kDa protein was identified by SDS-PAGE. DNA and N-terminal sequence analyses confirmed that this protein was C. neoformans IGPD. Furthermore, IGPD assays of crude extracts from IGPD-producing E. coli cells demonstrated that the C. neoformans protein was catalytically active.
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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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