Journal
PROTEIN & CELL
Volume 8, Issue 6, Pages 401-438Publisher
HIGHER EDUCATION PRESS
DOI: 10.1007/s13238-017-0372-z
Keywords
Na-v channels; channelopathy; Nav1.7; structure modeling; pain
Categories
Funding
- National Basic Research Program (973 Program) [2015CB910101, 2016YFA0500402, 2014ZX09507003-006]
- National Natural Science Foundation of China [31621092, 31630017, 31611130036]
- International Early Career Scientist grant from the Howard Hughes Medical Institute
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Voltage-gated sodium (Na-v) channels are essential for the rapid upstroke of action potentials and the propagation of electrical signals in nerves and muscles. Defects of Na-v channels are associated with a variety of channelopathies. More than 1000 disease-related mutations have been identified in Na-v channels, with Na(v)1.1 and Na(v)1.5 each harboring more than 400 mutations. Na-v channels represent major targets for a wide array of neurotoxins and drugs. Atomic structures of Na-v channels are required to understand their function and disease mechanisms. The recently determined atomic structure of the rabbit voltage-gated calcium (Ca-v) channel Ca(v)1.1 provides a template for homology-based structural modeling of the evolutionarily related Na-v channels. In this Resource article, we summarized all the reported disease-related mutations in human Na-v channels, generated a homologous model of human Na(v)1.7, and structurally mapped disease-associated mutations. Before the determination of structures of human Na-v channels, the analysis presented here serves as the base framework for mechanistic investigation of Na-v channelopathies and for potential structure-based drug discovery.
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