Cryo-EM structures of the small-conductance Ca2+-activated KCa2.2 channel

Abstract Small-conductance Ca2+-activated K+ (KCa2.1-KCa2.3) channels modulate neuronal and cardiac excitability. We report cryo-electron microscopy structures of the KCa2.2 channel in complex with calmodulin and Ca2+, alone or bound to two small molecule inhibitors, at 3.18, 3.50, 2.99 and 2.97 ang...

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Main Authors: Young-Woo Nam, Dohyun Im, Ana Santa Cruz Garcia, Marios L. Tringides, Hai Minh Nguyen, Yan Liu, Razan Orfali, Alena Ramanishka, Grigore Pintilie, Chih-Chia Su, Meng Cui, Diomedes E. Logothetis, Edward W. Yu, Heike Wulff, K. George Chandy, Miao Zhang
Format: Article
Language:English
Published: Nature Portfolio 2025-04-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-025-59061-1
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