Crystal structure of Saccharomyces cerevisiae NUP192, residues 2 to 960 [ScNup192(2-960)]
要素
Nucleoporin NUP192
キーワード
PROTEIN TRANSPORT / Structural genomics / NYSGRC / PSI-Biology / New York Structural Genomics Research Consortium / alpha solenoid-like / Nuclear Pore Complex component / NPC / Nup192 / Nup188 / Nucleoporin / Nucleocytoplasmic Transport: a Target for Cellular Control / NPCXstals
機能・相同性
機能・相同性情報
nuclear pore inner ring / regulation of nucleocytoplasmic transport / nuclear pore organization / Transport of Mature mRNA derived from an Intron-Containing Transcript / Regulation of HSF1-mediated heat shock response / SUMOylation of SUMOylation proteins / structural constituent of nuclear pore / SUMOylation of RNA binding proteins / SUMOylation of chromatin organization proteins / nucleocytoplasmic transport ...nuclear pore inner ring / regulation of nucleocytoplasmic transport / nuclear pore organization / Transport of Mature mRNA derived from an Intron-Containing Transcript / Regulation of HSF1-mediated heat shock response / SUMOylation of SUMOylation proteins / structural constituent of nuclear pore / SUMOylation of RNA binding proteins / SUMOylation of chromatin organization proteins / nucleocytoplasmic transport / mRNA transport / nuclear pore / nuclear envelope / protein transport / nucleus 類似検索 - 分子機能
ジャーナル: Structure / 年: 2013 タイトル: Structure, dynamics, evolution, and function of a major scaffold component in the nuclear pore complex. 著者: Parthasarathy Sampathkumar / Seung Joong Kim / Paula Upla / William J Rice / Jeremy Phillips / Benjamin L Timney / Ursula Pieper / Jeffrey B Bonanno / Javier Fernandez-Martinez / Zhanna ...著者: Parthasarathy Sampathkumar / Seung Joong Kim / Paula Upla / William J Rice / Jeremy Phillips / Benjamin L Timney / Ursula Pieper / Jeffrey B Bonanno / Javier Fernandez-Martinez / Zhanna Hakhverdyan / Natalia E Ketaren / Tsutomu Matsui / Thomas M Weiss / David L Stokes / J Michael Sauder / Stephen K Burley / Andrej Sali / Michael P Rout / Steven C Almo / 要旨: The nuclear pore complex, composed of proteins termed nucleoporins (Nups), is responsible for nucleocytoplasmic transport in eukaryotes. Nuclear pore complexes (NPCs) form an annular structure ...The nuclear pore complex, composed of proteins termed nucleoporins (Nups), is responsible for nucleocytoplasmic transport in eukaryotes. Nuclear pore complexes (NPCs) form an annular structure composed of the nuclear ring, cytoplasmic ring, a membrane ring, and two inner rings. Nup192 is a major component of the NPC's inner ring. We report the crystal structure of Saccharomyces cerevisiae Nup192 residues 2-960 [ScNup192(2-960)], which adopts an α-helical fold with three domains (i.e., D1, D2, and D3). Small angle X-ray scattering and electron microscopy (EM) studies reveal that ScNup192(2-960) could undergo long-range transition between "open" and "closed" conformations. We obtained a structural model of full-length ScNup192 based on EM, the structure of ScNup192(2-960), and homology modeling. Evolutionary analyses using the ScNup192(2-960) structure suggest that NPCs and vesicle-coating complexes are descended from a common membrane-coating ancestral complex. We show that suppression of Nup192 expression leads to compromised nuclear transport and hypothesize a role for Nup192 in modulating the permeability of the NPC central channel.