Ufd4p-mediated Sum1p clearance ensures proper chromosome organization during cell division.

Ufd4p-mediated degradation of Sum1p is essential for proper chromosome condensation and organization during cell division, with a conserved mechanism across species.

• Why it matters: Understanding chromosome organization is crucial for ensuring accurate segregation and genome stability, yet the regulatory mechanisms remain poorly understood, limiting insights into related diseases.
• What they did: The study used multiomics profiling and genetic analysis to identify Ufd4p as a key ubiquitin ligase that promotes condensin transcription by targeting Sum1p for proteasomal degradation in both meiosis and mitosis, with rescue experiments in mammals.
• The result: Findings reveal that Ufd4p controls chromosome architecture through a conserved UPS-dependent pathway, enabling potential therapeutic strategies for chromosome segregation disorders across diverse organisms.