Contact: Leila Gray
206-685-0381
University of Washington

Iris of Eye with Model of GAF Domain

Caption: Image of the iris of researcher Clemens Heikaus' eye with a model of a GAF domain imbedded in the pupil. A messenger molecule binds to the GAF domain to regulate an enzyme, PDE6, that is central to the way light hitting the retina is converted to signals to the brain.

Credit: Brad Clifton

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