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Keywords:

  • drug design;
  • heme proteins;
  • metalloenzymes;
  • nucleotides;
  • signal transduction
Thumbnail image of graphical abstract

Nitric oxide (NO) signaling mediates many important physiological processes through the receptor soluble guanylate cyclase (sGC). Under disease conditions sGC heme can be oxidized resulting in NO insensitivity. Here, we show that the therapeutic compound cinaciguat (Cin) rescues dysfunctional sGC by direct displacement of the oxidized heme.