1FI0

SOLUTION STRUCTURE OF HIV-1 VPR (13-33) PEPTIDE IN MICELLS

1FI0 の概要

• エントリーDOI: 10.2210/pdb1fi0/pdb
• 分子名称: VPR PROTEIN (1 entity in total)
• 機能のキーワード: helix, viral protein
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 2614.88

構造登録者

Engler, A.,Stangler, T.,Willbold, D. (登録日: 2000-08-03, 公開日: 2001-02-28, 最終更新日: 2024-10-30)

主引用文献

Engler, A.,Stangler, T.,Willbold, D.
Solution structure of human immunodeficiency virus type 1 Vpr(13-33) peptide in micelles.
Eur.J.Biochem., 268:389-395, 2001

PubMed Abstract: Human immunodeficiency virus type 1 protein R (HIV-1 Vpr) promotes nuclear entry of viral nucleic acids in nondividing cells, causes G2 cell cycle arrest and is involved in cellular differentiation and cell death. Also, Vpr subcellular localization is as variable as its functions. It is known that, consistent with its role in nuclear transport, Vpr localizes to the nuclear envelope of human cells. Further, a reported ion channel activity of Vpr obviously is dependent on its localization in or at membranes. We focused our structural studies on the secondary structure of a peptide consisting of residues 13-33 of HIV-1 Vpr in micelles. Employing nuclear magnetic resonance and circular dichroism spectroscopy we found this part of Vpr, known to be essential for nuclear localization, to be almost completely alpha helical. Our results provide structural data suggesting residues 13-33 of Vpr to form an amphipathic, leucine-zipper-like alpha helix that serves as a basis for interactions with a variety of viral and cellular factors.

PubMed: 11168374
DOI: 10.1046/j.1432-1033.2001.01895.x

実験手法

SOLUTION NMR