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Michael Levin Bioelectricity Voltage Sensing Domain of a Gated Ion Channel with Charged S4 Helix

Michael Levin Bioelectricity Voltage Sensing Domain of a Gated Ion Channel with Charged S4 Helix Education Model Stylized StarForge 3D Print STL File

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Two coiled helices stand side by side in this stylized model of the voltage sensing domain of a gated ion channel, with the charged S4 helix at its heart. Each ribbon spirals upward in broad turns, small branching side chains reach inward between the coils, and looping strands join the tops and bottoms of each helix. The open structure makes the twisting fold easy to follow from any side. It fits a cell biology classroom, a bioelectricity study desk or a science display shelf as a tactile way to show how membrane proteins sense voltage.

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