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Article

Pulsed electron-electron double-resonance determination of spin-label distances and orientations on the tetrameric potassium ion channel KcsA.

Journal of the American Chemical Society - 28 Oct 2009

Endeward Burkhard, Butterwick Joel A, MacKinnon Roderick, Prisner Thomas F

Abstract excerpt

Pulsed electron-electron double-resonance (PELDOR) measurements are presented from the potassium ion channel KcsA both solubilized in detergent and reconstituted in lipids. Site-directed spin-labeling using (1-oxyl-2,2,5,5-tetramethyl-3-pyrrolin-3-yl)methyl methanethiosulfonate was performed with a R64C mutant of the protein. The orientations of the spin-labels in the tetramer were determined by PELDOR...

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Identifiers

PMID: 19919160
DOI: 10.1021/ja904808n
PMCID: PMC2779547

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 6 Sept 2026. Manifest publication-graph-cohort-2026-09-06.1.

Source receipt: pubmed, retrieved 6 Sept 2026.

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