Unknown

Dataset Information

0

Molecular architecture of the Nup84-Nup145C-Sec13 edge element in the nuclear pore complex lattice.


ABSTRACT: Nuclear pore complexes (NPCs) facilitate all nucleocytoplasmic transport. These massive protein assemblies are modular, with a stable structural scaffold supporting more dynamically attached components. The scaffold is made from multiple copies of the heptameric Y complex and the heteromeric Nic96 complex. We previously showed that members of these core subcomplexes specifically share an ACE1 fold with Sec31 of the COPII vesicle coat, and we proposed a lattice model for the NPC based on this commonality. Here we present the crystal structure of the heterotrimeric 134-kDa complex of Nup84-Nup145C-Sec13 of the Y complex. The heterotypic ACE1 interaction of Nup84 and Nup145C is analogous to the homotypic ACE1 interaction of Sec31 that forms COPII lattice edge elements and is inconsistent with the alternative 'fence-like' NPC model. We construct a molecular model of the Y complex and compare the architectural principles of COPII and NPC lattices.

SUBMITTER: Brohawn SG 

PROVIDER: S-EPMC3398507 | biostudies-literature | 2009 Nov

REPOSITORIES: biostudies-literature

altmetric image

Publications

Molecular architecture of the Nup84-Nup145C-Sec13 edge element in the nuclear pore complex lattice.

Brohawn Stephen G SG   Schwartz Thomas U TU  

Nature structural & molecular biology 20091025 11


Nuclear pore complexes (NPCs) facilitate all nucleocytoplasmic transport. These massive protein assemblies are modular, with a stable structural scaffold supporting more dynamically attached components. The scaffold is made from multiple copies of the heptameric Y complex and the heteromeric Nic96 complex. We previously showed that members of these core subcomplexes specifically share an ACE1 fold with Sec31 of the COPII vesicle coat, and we proposed a lattice model for the NPC based on this com  ...[more]

Similar Datasets

| S-EPMC3431207 | biostudies-literature
| S-EPMC5180592 | biostudies-literature
| S-EPMC7264284 | biostudies-literature
| S-EPMC8926079 | biostudies-literature
| S-EPMC5342941 | biostudies-literature
| S-EPMC4066523 | biostudies-literature
| S-EPMC8550940 | biostudies-literature
| S-EPMC4826903 | biostudies-literature
| S-EPMC6006428 | biostudies-literature
| S-EPMC8351745 | biostudies-literature