1WCE

Crystal structure of the T13 IBDV viral particle reveals a missing link in icosahedral viruses evolution

1WCE の概要

• エントリーDOI: 10.2210/pdb1wce/pdb
• 関連するPDBエントリー: 1WCD
• 分子名称: MAJOR STRUCTURAL PROTEIN VP2 (1 entity in total)
• 機能のキーワード: virus, non-enveloped icosahedral viruses, double-stranded rna virus protein, birnavirus, transcriptase machinery, hydrolase, membrane translocation activity, evolution, icosahedral virus
• 由来する生物種: INFECTIOUS BURSAL DISEASE VIRUS (IBDV)
• 細胞内の位置: Capsid protein VP2: Virion (Potential). Capsid protein VP3: Virion (Potential). Structural peptide 1: Virion (Potential). Structural peptide 2: Virion (Potential). Structural peptide 3: Virion (Potential). Structural peptide 4: Virion (Potential): P15480
• タンパク質・核酸の鎖数: 13
• 化学式量合計: 613862.13

構造登録者

Coulibaly, F.,Chevalier, C.,Gutsche, I.,Pous, J.,Bressanelli, S.,Navaza, J.,Delmas, B.,Rey, F.A. (登録日: 2004-11-12, 公開日: 2005-04-06, 最終更新日: 2023-12-13)

主引用文献

Coulibaly, F.,Chevalier, C.,Gutsche, I.,Pous, J.,Navaza, J.,Bressanelli, S.,Delmas, B.,Rey, F.A.
The Birnavirus Crystal Structure Reveals Structural Relationships Among Icosahedral Viruses.
Cell(Cambridge,Mass.), 120:761-, 2005

PubMed Abstract: Double-stranded RNA virions are transcriptionally competent icosahedral particles that must translocate across a lipid bilayer to function within the cytoplasm of the target cell. Birnaviruses are unique among dsRNA viruses as they have a single T = 13 icosahedral shell, lacking the characteristic inner capsid observed in the others. We determined the crystal structures of the T = 1 subviral particle (260 angstroms in diameter) and of the T = 13 intact virus particle (700 angstroms in diameter) of an avian birnavirus to 3 angstroms and 7 angstroms resolution, respectively. Our results show that VP2, the only component of the virus icosahedral capsid, is homologous both to the capsid protein of positive-strand RNA viruses, like the T = 3 nodaviruses, and to the T = 13 capsid protein of members of the Reoviridae family of dsRNA viruses. Together, these results provide important insights into the multiple functions of the birnavirus capsid and reveal unexpected structural relationships among icosahedral viruses.

PubMed: 15797378
DOI: 10.1016/J.CELL.2005.01.009

実験手法

X-RAY DIFFRACTION (7 Å)