Tag: Kinetochore
Aurora C
Aurora C kinase is a germ‑cell‑enriched member of the Chromosomal Passenger Complex that safeguards meiotic chromosome segregation. By regulating kinetochore–microtubule interactions and cytokinesis, Aurora C ensures gamete quality and genomic stability. Its dysregulation contributes to infertility and tumour progression.
Kinetochore
The kinetochore is a dynamic protein complex assembled on centromeric chromatin that binds spindle microtubules, generates tension and ensures accurate chromosome segregation. Through coordinated interactions with Aurora B kinase and spindle checkpoint signalling, the kinetochore maintains mitotic fidelity and prevents aneuploidy.
Spindle Assembly Checkpoint
The spindle assembly checkpoint (SAC) is a mitotic surveillance system that prevents premature anaphase onset by monitoring kinetochore–microtubule attachment and tension. Through coordinated action with Aurora B kinase and the Chromosomal Passenger Complex, the SAC ensures accurate chromosome segregation and protects cells from aneuploidy.
Mitotic Error Correction
Mitotic error correction is a tension‑sensing mechanism that detects and destabilises incorrect kinetochore–microtubule attachments. Driven by Aurora B kinase and the Chromosomal Passenger Complex, this process ensures accurate chromosome segregation and prevents aneuploidy, making it essential for genomic stability.
Aurora C
Aurora C kinase is a germ‑cell‑enriched member of the Chromosomal Passenger Complex that safeguards meiotic chromosome segregation. By regulating kinetochore–microtubule interactions and cytokinesis, Aurora C ensures gamete quality and genomic stability. Its dysregulation contributes to infertility and tumour progression.
Kinetochore
The kinetochore is a dynamic protein complex assembled on centromeric chromatin that binds spindle microtubules, generates tension and ensures accurate chromosome segregation. Through coordinated interactions with Aurora B kinase and spindle checkpoint signalling, the kinetochore maintains mitotic fidelity and prevents aneuploidy.
Spindle Assembly Checkpoint
The spindle assembly checkpoint (SAC) is a mitotic surveillance system that prevents premature anaphase onset by monitoring kinetochore–microtubule attachment and tension. Through coordinated action with Aurora B kinase and the Chromosomal Passenger Complex, the SAC ensures accurate chromosome segregation and protects cells from aneuploidy.
Mitotic Error Correction
Mitotic error correction is a tension‑sensing mechanism that detects and destabilises incorrect kinetochore–microtubule attachments. Driven by Aurora B kinase and the Chromosomal Passenger Complex, this process ensures accurate chromosome segregation and prevents aneuploidy, making it essential for genomic stability.