Cohen RL, et al. (2008) Structural and functional dissection of Mif2p, a conserved DNA-binding kinetochore protein. Mol Biol Cell 19(10):4480-91
Abstract: Monitoring Editor: Kerry S. Bloom Mif2p is the budding-yeast ortholog of the mammalian centromere-binding protein, CENP-C. We have mapped domains of S. cerevisiae Mif2p and studied the phenotyptic consequences of their deletion. Using chromatin immunoprecipitation (ChIP) and electrophoretic mobility shift assays we have further shown that Mif2p binds in the CDEIII region of the budding-yeast centromere, probably in close spatial association with Ndc10p. Moreover, ChIP experiments show that Mif2p recruits to yeast kinetochores a substantial subset of all inner and outer kinetochore proteins, but not the Ndc80 or Spc105 complexes. We have determined the crystal structure of the C-terminal, dimerization domain of Mif2p. It has a "cupin" fold, extremely similar both in polypeptide chain conformation and in dimer geometry to the dimerization domain of a bacterial transcription factor. The Mif2p dimer appears to be part of an enhanceosome-like structure that nucleates kinetochore assembly in budding yeast.
|Status: Published||Type: Journal Article||PubMed ID: 18701705|
Topics addressed in this paper
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|Topics||Genes linked to topics (#1 - 10 )|
|Fungal Related Genes/Proteins|
|Non-Fungal Related Genes/Proteins|
|Protein Physical Properties|
|Protein Sequence Features|
|Protein-Nucleic Acid Interactions|
|Protein/Nucleic Acid Structure|
|Topics||Genes linked to topics (#11 )|