Helical extension of the neuronal SNARE complex into the membrane.
Helical extension of the neuronal SNARE complex into the membrane.
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DOI:
10.1038/nature08156
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发表时间:
2009-07-23
期刊:
影响因子:
64.8
通讯作者:
Jahn, Reinhard
中科院分区:
文献类型:
--
作者:
Stein, Alexander;Weber, Gert;Wahl, Markus C.;Jahn, Reinhard
SNAREs (soluble N-ethylmaleimide-sensitive factor attachment receptors) represent an evolutionarily conserved protein family that mediates membrane fusion in the secretory and endocytic pathways of eukaryotic cells . Upon membrane contact, these proteins assemble in trans between the membranes as a bundle of four α-helices, with the energy released upon assembly being thought to drive fusion . However, it is unclear how the energy is transferred to the membranes and whether assembly is conformationally linked to fusion. Here, we report the X-ray structure of the neuronal SNARE complex, consisting of syntaxin 1A, SNAP-25 and synaptobrevin 2, with the C-terminal linkers and transmembrane regions at a resolution of 3.4 Å. The structure shows that assembly proceeds beyond the already known core-SNARE complex , resulting in a continuous helical bundle that is further stabilized by side-chain interactions in the linker region. Our results suggest that the final phase of SNARE assembly is directly coupled to membrane merger.
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影响因子:
5.5
作者:
Hess, Berk;Kutzner, Carsten;Lindahl, Erik
通讯作者:
Lindahl, Erik
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
DOI:
10.1038/nsb750
发表时间:
2002-02-01
期刊:
NATURE STRUCTURAL BIOLOGY
影响因子:
--
作者:
Fasshauer, D;Antonin, W;Jahn, R
通讯作者:
Jahn, R
影响因子:
3.4
作者:
Dennison, SM;Bowen, ME;Lentz, BR
通讯作者:
Lentz, BR
影响因子:
3.3
作者:
Lam, Alice D.;Tryoen-Toth, Petra;Stuenkel, Edward L.
通讯作者:
Stuenkel, Edward L.