SNARE proteins: one to fuse and three to keep the nascent fusion pore open.
SNARE proteins: one to fuse and three to keep the nascent fusion pore open.
复制标题
DOI:
10.1126/science.1214984
复制
发表时间:
2012-03-16
期刊:
影响因子:
--
通讯作者:
Pincet F
中科院分区:
文献类型:
--
作者:
Shi L;Shen QT;Kiel A;Wang J;Wang HW;Melia TJ;Rothman JE;Pincet F
Neurotransmitters are released thru nascent fusion pores, which ordinarily dilate after bilayer fusion, preventing consistent biochemical studies. Here, we employ lipid bilayer nanodiscs as fusion partners, whose rigid protein framework prevents dilation and reveals properties of the SNARE-induced fusion pore. While only one SNARE per nanodisc is required for maximum rates of bilayer fusion, efficient release of content on the physiologically-relevant time scale of synaptic transmission requires ~3 or more SNAREpins and the native VAMP2 transmembrane domain. We suggest that several SNAREpins simultaneously zippering their SNARE transmembrane helices within the freshly fused bilayers provide a radial force that prevents the nascent pore from resealing during synchronous neurotransmitter release.
登录
查看更多内容
影响因子:
3.2
作者:
Karatekin, E;Sandre, O;Brochard-Wyart, F
通讯作者:
Brochard-Wyart, F
影响因子:
56.9
作者:
Han, X;Wang, CT;Jackson, MB
通讯作者:
Jackson, MB
影响因子:
64.8
作者:
SOLLNER, T;WHITEHART, SW;ROTHMAN, JE
通讯作者:
ROTHMAN, JE
影响因子:
64.8
作者:
Stein, Alexander;Weber, Gert;Wahl, Markus C.;Jahn, Reinhard
通讯作者:
Jahn, Reinhard
影响因子:
25
作者:
Staal, RGW;Mosharov, EV;Sulzer, D
通讯作者:
Sulzer, D