Knl1/Spc105 complex / positive regulation of meiosis I spindle assembly checkpoint / homologous chromosome orientation in meiotic metaphase I / MIS12/MIND type complex / acrosome assembly / regulation of mitotic cell cycle spindle assembly checkpoint / attachment of spindle microtubules to kinetochore / protein localization to kinetochore / mitotic sister chromatid segregation / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal ...Knl1/Spc105 complex / positive regulation of meiosis I spindle assembly checkpoint / homologous chromosome orientation in meiotic metaphase I / MIS12/MIND type complex / acrosome assembly / regulation of mitotic cell cycle spindle assembly checkpoint / attachment of spindle microtubules to kinetochore / protein localization to kinetochore / mitotic sister chromatid segregation / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / Deposition of new CENPA-containing nucleosomes at the centromere / Resolution of Sister Chromatid Cohesion / acrosomal vesicle / RHO GTPases Activate Formins / kinetochore / spindle pole / Separation of Sister Chromatids / nuclear body / nuclear speck / cell division / nucleoplasm / nucleus / cytosol 類似検索 - 分子機能
ジャーナル: Mol Cell / 年: 2014 タイトル: Modular assembly of RWD domains on the Mis12 complex underlies outer kinetochore organization. 著者: Arsen Petrovic / Shyamal Mosalaganti / Jenny Keller / Marta Mattiuzzo / Katharina Overlack / Veronica Krenn / Anna De Antoni / Sabine Wohlgemuth / Valentina Cecatiello / Sebastiano Pasqualato ...著者: Arsen Petrovic / Shyamal Mosalaganti / Jenny Keller / Marta Mattiuzzo / Katharina Overlack / Veronica Krenn / Anna De Antoni / Sabine Wohlgemuth / Valentina Cecatiello / Sebastiano Pasqualato / Stefan Raunser / Andrea Musacchio / 要旨: Faithful chromosome segregation is mandatory for cell and organismal viability. Kinetochores, large protein assemblies embedded in centromeric chromatin, establish a mechanical link between ...Faithful chromosome segregation is mandatory for cell and organismal viability. Kinetochores, large protein assemblies embedded in centromeric chromatin, establish a mechanical link between chromosomes and spindle microtubules. The KMN network, a conserved 10-subunit kinetochore complex, harbors the microtubule-binding interface. RWD domains in the KMN subunits Spc24 and Spc25 mediate kinetochore targeting of the microtubule-binding subunits by interacting with the Mis12 complex, a KMN subcomplex that tethers directly onto the underlying chromatin layer. Here, we show that Knl1, a KMN subunit involved in mitotic checkpoint signaling, also contains RWD domains that bind the Mis12 complex and that mediate kinetochore targeting of Knl1. By reporting the first 3D electron microscopy structure of the KMN network, we provide a comprehensive framework to interpret how interactions of RWD-containing proteins with the Mis12 complex shape KMN network topology. Our observations unveil a regular pattern in the construction of the outer kinetochore.
ProteinCASC5 / ALL1-fused gene from chromosome 15q14 protein / AF15q14 / Bub-linking kinetochore protein / Blinkin ...ALL1-fused gene from chromosome 15q14 protein / AF15q14 / Bub-linking kinetochore protein / Blinkin / Cancer susceptibility candidate gene 5 protein / Cancer/testis antigen 29 / CT29 / Kinetochore-null protein 1 / Protein D40/AF15q14
温度: 293 K / 手法: 蒸気拡散法, ハンギングドロップ法 / pH: 7 詳細: 16-20 % (v/v) PEG 3350, 220 mM sodium citrate and 100 mM MES (pH 6 or 6.5) and 100 mM Hepes (pH 7), VAPOR DIFFUSION, HANGING DROP, temperature 293K
構造決定の手法: 分子置換 / 解像度: 2.8→46.31 Å / Cor.coef. Fo:Fc: 0.941 / Cor.coef. Fo:Fc free: 0.904 / SU B: 0.007 / SU ML: 0 / 交差検証法: THROUGHOUT / σ(F): 2.8 / ESU R: 0.263 / ESU R Free: 0.337 / 立体化学のターゲット値: MAXIMUM LIKELIHOOD / 詳細: HYDROGENS HAVE BEEN USED IF PRESENT IN THE INPUT
Rfactor
反射数
%反射
Selection details
Rfree
0.26502
983
5 %
RANDOM
Rwork
0.20693
-
-
-
all
0.20989
36465
-
-
obs
0.20989
18673
99.47 %
-
溶媒の処理
イオンプローブ半径: 0.8 Å / 減衰半径: 0.8 Å / VDWプローブ半径: 1.2 Å / 溶媒モデル: MASK