The centromere DNA element I (CDEI) is an important component of Saccharomyces cerevisiae centromere DNA and carries the palindromic sequence CACRTG (R = purine) as a characteristic feature. In vivo, CDEI is bound by the helix-loop-helix protein CPF1. This article describes the in vivo analysis of all single-base-pair substitutions in CDEI in the centromere of an artificial chromosome and demonstrates the importance of the palindromic sequence for faithful chromosome segregation, supporting the notion that CPF1 binds as a dimer to this binding site. Mutational analysis of two conserved base pairs on the left and two nonconserved base pairs on the right of the CDEI palindrome revealed that these are also relevant for mitotic CEN function. Symmetrical mutations in either half-site of the palindrome affect centromere activity to a different extent, indicating nonidentical sequence requirements for binding by the CPF1 homodimer. Analysis of double point mutations in CDEI and in CDEIII, an additional centromere element, indicate synergistic effects between the DNA-protein complexes at these sites.
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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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