- EMDB-20271: Structure of the K. lactis CBF3 core - Ndc10 D1 complex -
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基本情報
登録情報
データベース: EMDB / ID: EMD-20271
タイトル
Structure of the K. lactis CBF3 core - Ndc10 D1 complex
マップデータ
K. lactis CBF3 core - Ndc10 D1 complex
試料
複合体: K. lactis CBF3 core - Ndc10 D1 complex
タンパク質・ペプチド: Ndc10
タンパク質・ペプチド: Ctf13
タンパク質・ペプチド: Skp1
タンパク質・ペプチド: Cep3
キーワード
yeast centromere-binding complex / DNA BINDING PROTEIN
機能・相同性
機能・相同性情報
DNA-binding transcription activator activity, RNA polymerase II-specific / ubiquitin-dependent protein catabolic process / protein ubiquitination / RNA polymerase II cis-regulatory region sequence-specific DNA binding / DNA binding / zinc ion binding / nucleus / membrane 類似検索 - 分子機能
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
米国
引用
ジャーナル: J Mol Biol / 年: 2019 タイトル: Structure of the Centromere Binding Factor 3 Complex from Kluyveromyces lactis. 著者: Phong D Lee / Hui Wei / Dongyan Tan / Stephen C Harrison / 要旨: Kinetochores are the multiprotein complexes that link chromosomal centromeres to mitotic-spindle microtubules. Budding yeast centromeres comprise three sequential "centromere-determining elements", ...Kinetochores are the multiprotein complexes that link chromosomal centromeres to mitotic-spindle microtubules. Budding yeast centromeres comprise three sequential "centromere-determining elements", CDEI, II, and III. CDEI (8 bp) and CDEIII (∼25 bp) are conserved between Kluyveromyces lactis and Saccharomyces cerevisiae, but CDEII in the former is twice as long (160 bp) as CDEII in the latter (80 bp). The CBF3 complex recognizes CDEIII and is required for assembly of a centromeric nucleosome, which in turn recruits other kinetochore components. To understand differences in centromeric nucleosome assembly between K. lactis and S. cerevisiae, we determined the structure of a K. lactis CBF3 complex by electron cryomicroscopy at ∼4 Å resolution and compared it with published structures of S. cerevisiae CBF3. We show differences in the pose of Ndc10 and discuss potential models of the K. lactis centromeric nucleosome that account for the extended CDEII length.