Contact: Diana Lutz
Washington University in St. Louis
Caption: The cytochrome c protein (colored ribbons), holds in its embrace a heme group (white honeycomb) that in turn clasps an iron atom (orange ball). This molecule is essential to life and any chemical that interferes with its activity is lethal.
Credit: Resource for Biocomputing, Visualization, and Informatics at the University of California, San Francisco.
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Related news release: Heme channel found