Cell biology articles from across Nature Portfolio

mTORC1 promotes cell growth by sensing nutrients and driving anabolic processes. When nutrients are scarce, GATOR1 turns off growth signals. Our study describes how KICSTOR links GATOR1 to lysosomes to enable its function, a finding that may help us to understand certain neurological disorders.

Despite the extensive use of Arabidopsis thaliana as a model system, parts of its biology remain unknown, including the architecture of its largest cellular protein assembly, the nuclear pore complex (NPC). Using cryo-electron tomography, we have obtained the three-dimensional architecture of the A. thaliana NPC, which suggests it has both conserved and distinct features.

Reproductive aging involves a decline in oocyte chromosome cohesion and various other developmental conditions that are difficult to study in isolation. We developed a mouse system that enables rapid manipulation of chromosome cohesion, which revealed that centromere dysfunction is a key driver of age-related chromosomal errors in mammalian eggs.

Affinity purification in Arabidopsis identified all key subunits of the outer kinetochore KMN complex. Functional analyses revealed a striking conservation of its composition and organization across kingdoms, underscoring its deep evolutionary origin.

Familial spastic paraplegia (SPG) is a rare heritable neurodegenerative disorders. Here, the authors show SPG80-associated protein UBAP1 deficiency disrupts lysosomal and mTORC1 signal, indicating rapamycin could potentially benefit SPG80 patients.

mTORC1 promotes cell growth by sensing nutrients and driving anabolic processes. When nutrients are scarce, GATOR1 turns off growth signals. Our study describes how KICSTOR links GATOR1 to lysosomes to enable its function, a finding that may help us to understand certain neurological disorders.

Despite the extensive use of Arabidopsis thaliana as a model system, parts of its biology remain unknown, including the architecture of its largest cellular protein assembly, the nuclear pore complex (NPC). Using cryo-electron tomography, we have obtained the three-dimensional architecture of the A. thaliana NPC, which suggests it has both conserved and distinct features.

A study finds that mechanical activation leads to microtubule rearrangement, facilitating the proteasomal degradation of an inhibitor of YAP/TAZ, thus promoting YAP/TAZ nuclear translocation.

A study showing that human cells encode a functional cyclin-dependent kinase, thereby demonstrating that cell-cycle regulation is conserved across eukaryotes.

Reproductive aging involves a decline in oocyte chromosome cohesion and various other developmental conditions that are difficult to study in isolation. We developed a mouse system that enables rapid manipulation of chromosome cohesion, which revealed that centromere dysfunction is a key driver of age-related chromosomal errors in mammalian eggs.