4IL7

Crystal structure of A223 C-terminal domain, a structural protein from sulfolobus turreted icosahedral virus (STIV)

4IL7 の概要

• エントリーDOI: 10.2210/pdb4il7/pdb
• 分子名称: Putative uncharacterized protein (2 entities in total)
• 機能のキーワード: partial jelly roll fold, hypothetical protein, c381 and b345, viral capsid, viral protein
• 由来する生物種: Sulfolobus turreted icosahedral virus
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 17935.16

構造登録者

Sendamarai, A.K.,Lawrence, C.M. (登録日: 2012-12-29, 公開日: 2013-04-03, 最終更新日: 2024-02-28)

主引用文献

Veesler, D.,Ng, T.S.,Sendamarai, A.K.,Eilers, B.J.,Lawrence, C.M.,Lok, S.M.,Young, M.J.,Johnson, J.E.,Fu, C.Y.
Atomic structure of the 75 MDa extremophile Sulfolobus turreted icosahedral virus determined by CryoEM and X-ray crystallography.
Proc.Natl.Acad.Sci.USA, 110:5504-5509, 2013

PubMed Abstract: Sulfolobus turreted icosahedral virus (STIV) was isolated in acidic hot springs where it infects the archeon Sulfolobus solfataricus. We determined the STIV structure using near-atomic resolution electron microscopy and X-ray crystallography allowing tracing of structural polypeptide chains and visualization of transmembrane proteins embedded in the viral membrane. We propose that the vertex complexes orchestrate virion assembly by coordinating interactions of the membrane and various protein components involved. STIV shares the same coat subunit and penton base protein folds as some eukaryotic and bacterial viruses, suggesting that they derive from a common ancestor predating the divergence of the three kingdoms of life. One architectural motif (β-jelly roll fold) forms virtually the entire capsid (distributed in three different gene products), indicating that a single ancestral protein module may have been at the origin of its evolution.

PubMed: 23520050
DOI: 10.1073/pnas.1300601110

実験手法

X-RAY DIFFRACTION (1.4 Å)