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The spindle-assembly checkpoint in space and time
Recent molecular analyses have begun to shed light on the complex interaction of the checkpoint proteins with kinetochores — structures that mediate the binding of spindle microtubules to chromosomes in mitosis.
GSK-3-selective inhibitors derived from Tyrian purple indirubins.
Implications for Kinetochore-Microtubule Attachment from the Structure of an Engineered Ndc80 Complex
The Molecular Biology of Spindle Assembly Checkpoint Signaling Dynamics
- A. Musacchio
- BiologyCurrent Biology
- 19 October 2015
Sustained Mps1 activity is required in mitosis to recruit O-Mad2 to the Mad1–C-Mad2 core complex
To satisfy the mitotic checkpoint and drive chromosome congression, the Mps1 kinase lets go of kinetochores by phosphorylating itself in trans (see also related papers by Maciejowski et al. and…
Kinetochore Microtubule Dynamics and Attachment Stability Are Regulated by Hec1
The Mad1/Mad2 Complex as a Template for Mad2 Activation in the Spindle Assembly Checkpoint
Dissecting the role of MPS1 in chromosome biorientation and the spindle checkpoint through the small molecule inhibitor reversine
- S. Santaguida, A. Tighe, A. M. D’Alise, Stephen S. Taylor, A. Musacchio
- BiologyThe Journal of cell biology
- 12 July 2010
Addition of reversine to dividing cells ejects Mad1 and the RZZ complex from unattached kinetochores and prevents resolution of incorrect chromosome–microtubule attachments (see also related papers…
Crystal structure of the tetrameric Mad1–Mad2 core complex: implications of a ‘safety belt’ binding mechanism for the spindle checkpoint
- Lucia Sironi, M. Mapelli, S. Knapp, A. Antoni, K. Jeang, A. Musacchio
- Chemistry, BiologyThe EMBO journal
- 15 May 2002
It is shown that unlocking the Mad2 C‐terminal tail is required for ligand release from Mad2, and that the ‘safety belt’ mechanism may prolong the lifetime of Mad2–ligand complexes.