Article
A universally conserved residue in the SUR1 subunit of the KATP channel is essential for translating nucleotide binding at SUR1 into channel opening.
The Journal of physiology - 15 Oct 2012
de Wet Heidi, Shimomura Kenju, Aittoniemi Jussi, Ahmad Nawaz, Lafond Mathilde, Sansom Mark S P, Ashcroft Frances M
Abstract excerpt
The sulphonylurea receptor (SUR1) subunit of the ATP-sensitive potassium (KATP) channel is a member of the ATP-binding cassette (ABC) protein family. Binding of MgADP to nucleotide-binding domain 2 (NBD2) is critical for channel activation.We identified a residue in NBD2 (G1401) that is fully conserved among ABC proteins and whose functional importance is unknown. Homology modelling places G1401 on the outer...
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