Application of amphipols for structure-functional analysis of TRP channels.
Application of amphipols for structure-functional analysis of TRP channels.
复制标题
DOI:
10.1007/s00232-014-9684-6
复制
发表时间:
2014-10
影响因子:
2.4
通讯作者:
Moiseenkova-Bell, Vera Y.
中科院分区:
文献类型:
--
作者:
Huynh, Kevin W.;Cohen, Matthew R.;Moiseenkova-Bell, Vera Y.
Amphipathic polymers (amphipols), such as A8-35 and SApol, are a new tool for stabilizing integral membrane proteins in detergent-free conditions for structural and functional studies. Transient receptor potential (TRP) ion channels function as tetrameric protein complexes in a diverse range of cellular processes including sensory transduction. Mammalian TRP channels share ~20% sequence similarity and are categorized into six subfamilies: TRPC (canonical), TRPV (vanilloid), TRPA (ankyrin), TRPM (melastatin), TRPP (polycystin), and TRPML (mucolipin). Due to the inherent difficulties in purifying eukaryotic membrane proteins, structural studies of TRP channels have been limited. Recently, A8-35 was essential in resolving the molecular architecture of the nociceptor TRPA1 and led to the determination of a high resolution structure of the thermosensitive TRPV1 channel by cryo-EM. Newly developed maltose-neopentyl glycol (MNG) detergents have also proven useful in stabilizing TRP channels for structural analysis. In this review, we will discuss the impact of amphipols and MNG detergents on structural studies of TRP channels by cryo-EM. We will compare how A8-35 and MNG detergents interact with the hydrophobic transmembrane (TM) domains of TRP channels. In addition, we will discuss what these cryo-EM studies reveal on the importance of screening different types of surfactants towards determining high resolution structures of TRP channels.
登录
查看更多内容
DOI:
10.1085/jgp.201210810
发表时间:
2012-11
期刊:
The Journal of general physiology
影响因子:
--
作者:
Lau SY;Procko E;Gaudet R
通讯作者:
Gaudet R
影响因子:
2.9
作者:
Inada H;Procko E;Sotomayor M;Gaudet R
通讯作者:
Gaudet R
DOI:
10.1007/s00249-009-0513-2
发表时间:
2010-03-01
影响因子:
2
作者:
Catoire, Laurent J.;Zoonens, Manuela;Popot, Jean-Luc
通讯作者:
Popot, Jean-Luc
影响因子:
2.9
作者:
Dahmane, Tassadite;Giusti, Fabrice;Popot, Jean-Luc
通讯作者:
Popot, Jean-Luc
影响因子:
5.7
作者:
Huynh, Kevin W.;Cohen, Matthew R.;Moiseenkova-Bell, Vera Y.
通讯作者:
Moiseenkova-Bell, Vera Y.