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DOI | 10.1038/s41467-018-07874-8 |
Focused clamping of a single neuronal SNARE complex by complexin under high mechanical tension | |
Shon, Min Ju1,2; Kim, Haesoo1,2; Yoon, Tae-Young1,2 | |
2019-01-03 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2018 |
卷号 | 9 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea |
英文摘要 | Neuronal soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNAREs) catalyze synaptic vesicle fusion with presynaptic membranes through the formation of SNARE complexes. Complexin (Cpx) is the only presynaptic protein that tightly binds to SNAREs and regulates membrane fusion, but how it modulates the energy landscape of SNARE complex assembly, especially under mechanical tension on the complex, remains unclear. Here, using magnetic tweezers, we report how Cpx interacts with single SNARE complexes. The effects of Cpx manifest only under high mechanical tensions above 13 pN. Cpx stabilizes the central four-helix bundle of SNARE motifs and, at the same time, prevents the complete zippering of SNAREs by inhibiting linker-domain assembly. These results suggest that Cpx generates a focused clamp for the neuronal SNARE complex in a linker-open conformation. Our results provide a hint as to how Cpx cooperates with neuronal SNAREs to prime synaptic vesicles in preparation for synchronous neurotransmitter release. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000444014100014 |
WOS关键词 | SYNAPTIC VESICLE EXOCYTOSIS ; MEMBRANE-FUSION ; NEUROTRANSMITTER RELEASE ; MAGNETIC TWEEZERS ; FORCE CALIBRATION ; CA2+ SENSOR ; SYNAPTOTAGMIN ; BINDING ; PROTEINS ; DYNAMICS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204146 |
专题 | 资源环境科学 |
作者单位 | 1.Seoul Natl Univ, Sch Biol Sci, Seoul 08826, South Korea; 2.Seoul Natl Univ, Inst Mol Biol & Genet, Seoul 08826, South Korea |
推荐引用方式 GB/T 7714 | Shon, Min Ju,Kim, Haesoo,Yoon, Tae-Young. Focused clamping of a single neuronal SNARE complex by complexin under high mechanical tension[J]. NATURE COMMUNICATIONS,2019,9. |
APA | Shon, Min Ju,Kim, Haesoo,&Yoon, Tae-Young.(2019).Focused clamping of a single neuronal SNARE complex by complexin under high mechanical tension.NATURE COMMUNICATIONS,9. |
MLA | Shon, Min Ju,et al."Focused clamping of a single neuronal SNARE complex by complexin under high mechanical tension".NATURE COMMUNICATIONS 9(2019). |
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