ArticleNature communications2025
Structural mechanisms of assembly, gating, and calmodulin modulation of human olfactory CNG channel.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Drafting the calmodulation playbook: Emerging structural insights into transient receptor potential channel regulation by calmodulin.The Journal of physiology · 2026Review
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4 authors.
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Abstract
Mammalian cyclic nucleotide-gated (CNG) channels play crucial roles in visual and olfactory signal transduction. In olfactory sensory neurons, the native CNG channel functions as a heterotetramer consisting of CNGA2, CNGA4, and CNGB1b subunits and is activated by cAMP. Calmodulin (CaM) modulates the activity of the olfactory CNG channel, enabling rapid adaptation to odorants. Here we present cryo-EM structures of the native human olfactory CNGA2/A4/B1b channel in both CaM-bound closed and cAMP-bound open states, elucidating the molecular basis of the 2:1:1 subunit stoichiometry in channel assembly and the asymmetrical channel gating upon cAMP activation. Combining structural and functional analyses with AlphaFold prediction, we define two distinct CaM binding sites (CaM1 and CaM2) on the N- and C-terminal regions of CNGB1b, respectively, shedding light on the molecular mechanism of Ca
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