WOPR-domain proteins are found throughout the fungal kingdom where they function as master regulators of cell morphology and pathogenesis. Genetic and biochemical experiments previously demonstrated that these proteins bind to specific DNA sequences and thereby regulate transcription. However, their primary sequence showed no relationship to any known DNA-binding domain, and the basis for their ability to recognize DNA sequences remained unknown. Here, we describe the 2.6-Å crystal structure of a WOPR domain in complex with its preferred DNA sequence. The structure reveals that two highly conserved regions, separated by an unconserved linker, form an interdigitated β-sheet that is tilted into the major groove of DNA. Although the main interaction surface is in the major groove, the highest-affinity interactions occur in the minor groove, primarily through a deeply penetrating arginine residue. The structure reveals a new, unanticipated mechanism by which proteins can recognize specific sequences of DNA.
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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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| Evidence ID | Analyze ID | File | Description |
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