Structure, Function, and Modification of the Voltage Sensor in Voltage-Gated Ion Channels

2008 ◽  
Vol 52 (3) ◽  
pp. 149-174 ◽  
Author(s):  
Sara I. Börjesson ◽  
Fredrik Elinder
Keyword(s):  
Ion Channels ◽  
Structure Function ◽  
Voltage Sensor ◽  
Voltage Gated ◽  
Voltage Gated Ion Channels ◽  
Gated Ion Channels

scholarly journals Cryo-EM structure of the KvAP channel reveals a non-domain-swapped voltage sensor topology

eLife ◽  
2019 ◽  
Vol 8 ◽  
Author(s):  
Xiao Tao ◽  
Roderick MacKinnon
Keyword(s):  
Ion Channels ◽  
Conformational Changes ◽  
Voltage Sensor ◽  
Structural Domains ◽  
Structural Class ◽  
Voltage Sensors ◽  
Voltage Gated ◽  
Voltage Dependent ◽  
Voltage Gated Ion Channels ◽  
Gated Ion Channels

Conductance in voltage-gated ion channels is regulated by membrane voltage through structural domains known as voltage sensors. A single structural class of voltage sensor domain exists, but two different modes of voltage sensor attachment to the pore occur in nature: domain-swapped and non-domain-swapped. Since the more thoroughly studied Kv1-7, Nav and Cav channels have domain-swapped voltage sensors, much less is known about non-domain-swapped voltage-gated ion channels. In this paper, using cryo-EM, we show that KvAP from Aeropyrum pernix has non-domain-swapped voltage sensors as well as other unusual features. The new structure, together with previous functional data, suggests that KvAP and the Shaker channel, to which KvAP is most often compared, probably undergo rather different voltage-dependent conformational changes when they open.

Voltage-Gated Ion Channels, New Targets in Anti-Cancer Research

2007 ◽  
Vol 2 (3) ◽  
pp. 189-202 ◽  
Author(s):  
Le Jean-Yves ◽  
Ouadid-Ahidouch Halima ◽  
Soriani Olivier ◽  
Besson Pierre ◽  
Ahidouch Ahmed ◽  
...  
Keyword(s):  
Cancer Research ◽  
Ion Channels ◽  
Voltage Gated ◽  
New Targets ◽  
Anti Cancer ◽  
Voltage Gated Ion Channels ◽  
Gated Ion Channels

scholarly journals Expression and Distribution of Voltage Gated Ion Channels in Ferret SA Node

2009 ◽  
Vol 96 (3) ◽  
pp. 261a
Author(s):  
Muugu V. Brahmajothi ◽  
Michael. J. Morales ◽  
Donald L. Campbell ◽  
Charles Steenbergen ◽  
Harold C. Strauss
Keyword(s):  
Ion Channels ◽  
Voltage Gated ◽  
Sa Node ◽  
Voltage Gated Ion Channels ◽  
Gated Ion Channels
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