2NPB

NMR solution structure of mouse SelW

2NPB の概要

• エントリーDOI: 10.2210/pdb2npb/pdb
• NMR情報: BMRB: 7324
• 分子名称: Selenoprotein W (1 entity in total)
• 機能のキーワード: selenoprotein, thioredoxin-like fold, oxidoreductase
• 由来する生物種: Mus musculus (house mouse)
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 10710.40

構造登録者

Aachmann, F.L.,Fomenko, D.E.,Soragni, A.,Gladyshev, V.N.,Dikiy, A. (登録日: 2006-10-27, 公開日: 2006-11-14, 最終更新日: 2024-05-15)

主引用文献

Aachmann, F.L.,Fomenko, D.E.,Soragni, A.,Gladyshev, V.N.,Dikiy, A.
Solution structure of selenoprotein W and NMR analysis of its interaction with 14-3-3 proteins
J.Biol.Chem., 282:37036-37044, 2007

PubMed Abstract: Selenium is a trace element with significant biomedical potential. It is essential in mammals due to its occurrence in several proteins in the form of selenocysteine (Sec). One of the most abundant mammalian Sec-containing proteins is selenoprotein W (SelW). This protein of unknown function has a broad expression pattern and contains a candidate CXXU (where U represents Sec) redox motif. Here, we report the solution structure of the Sec13-->Cys variant of mouse SelW determined through high resolution NMR spectroscopy. The protein has a thioredoxin-like fold with the CXXU motif located in an exposed loop similarly to the redox-active site in thioredoxin. Protein dynamics studies revealed the rigidity of the protein backbone and mobility of two external loops and suggested a role of these loops in interaction with SelW partners. Molecular modeling of structures of other members of the Rdx family based on the SelW structure identified new conserved features in these proteins, including an aromatic cluster and interacting loops. Our previous study suggested an interaction between SelW and 14-3-3 proteins. In the present work, with the aid of NMR spectroscopy, we demonstrated specificity of this interaction and identified mobile loops in SelW as interacting surfaces. This finding suggests that 14-3-3 are redox-regulated proteins.

PubMed: 17928294
DOI: 10.1074/JBC.M705410200

実験手法

SOLUTION NMR