Abstract:
:Recent progress in our understanding of the trafficking of potassium channels can be seen in particular when considering the Kv-type channels. To date, we have discovered that folding of the Kv1.3 T1 domain begins in the ribosomal exit tunnel, and that the cell surface expression of Kv4 channels is enhanced by the presence of two recently identified accessory subunits. Current advances are beginning to enable us to understand the Kv supermolecular complex containing these subunits in crystallographic detail. In addition, determinants that govern the dendritic or axonal targeting of Kv channels have also been identified. In terms of the bigger picture, the careful analysis of gene expression patterns in the brain paves the way for studying trafficking in a physiological context. Indeed, neuronal activity has recently been shown to fine-tune the localization of Kv2.1 channels in microdomains of the neuronal plasma membrane.
journal_name
Curr Opin Neurobioljournal_title
Current opinion in neurobiologyauthors
Heusser K,Schwappach Bdoi
10.1016/j.conb.2005.04.001subject
Has Abstractpub_date
2005-06-01 00:00:00pages
364-9issue
3eissn
0959-4388issn
1873-6882pii
S0959-4388(05)00064-4journal_volume
15pub_type
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journal_title:Current opinion in neurobiology
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