The structure of neurexin 1α reveals features promoting a role as synaptic organizer.
The structure of neurexin 1α reveals features promoting a role as synaptic organizer.
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DOI:
10.1016/j.str.2011.03.012
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发表时间:
2011-06-08
期刊:
影响因子:
5.7
通讯作者:
Rudenko, Gabby
中科院分区:
文献类型:
--
作者:
Chen, Fang;Venugopal, Vandavasi;Murray, Beverly;Rudenko, Gabby
α-Neurexins are essential synaptic adhesion molecules implicated in autism spectrum disorder and schizophrenia. The α-neurexin extracellular domain consists of 6 LNS domains interspersed by 3 EGF-like repeats and interacts with many different proteins in the synaptic cleft. To understand how α-neurexins might function as synaptic organizers, we solved the structure of the neurexin 1α extracellular domain (n1α) to 2.65 Å. The L-shaped molecule can be divided into a flexible repeat I (LNS1-EGF-A-LNS2), a rigid horseshoe-shaped repeat II (LNS3-EGF-B-LNS4) with structural similarity to so-called reelin repeats, and an extended repeat III (LNS5-EGF-B-LNS6) with controlled flexibility. A 2.95 Å structure of n1α carrying splice insert SS#3 in LNS4 reveals that SS#3 protrudes as a loop and does not alter the rigid arrangement of repeat II. The global architecture imposed by conserved structural features enables α-neurexins to recruit and organize proteins in distinct and variable ways, influenced by splicing, thereby promoting synaptic function.
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影响因子:
16.2
作者:
Ko, Jaewon;Fuccillo, Marc V.;Malenka, Robert C.;Suedhof, Thomas C.
通讯作者:
Suedhof, Thomas C.
影响因子:
2.7
作者:
Dahlhaus, Regina;El-Husseini, Alaa
通讯作者:
El-Husseini, Alaa
影响因子:
16.2
作者:
Fabrichny, Igor P.;Leone, Philippe;Marchot, Pascale
通讯作者:
Marchot, Pascale
影响因子:
11.4
作者:
Ko, Jaewon;Zhang, Chen;Suedhof, Thomas C.
通讯作者:
Suedhof, Thomas C.
DOI:
10.1107/s0907444909042073
发表时间:
2010-01
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Chen VB;Arendall WB 3rd;Headd JJ;Keedy DA;Immormino RM;Kapral GJ;Murray LW;Richardson JS;Richardson DC
通讯作者:
Richardson DC