An S-nitrosothiol (SNO) synthase function of hemoglobin that utilizes nitrite as a substrate

Michael Angelo1, David J Singel, Jonathan S Stamler

  • 1Department of Biochemistry, Duke University Medical Center, Durham, NC 27710, USA.

Summary

Red blood cells regulate blood vessel tone via nitric oxide (NO) interactions with hemoglobin (Hb). This study reveals Hb’s intrinsic S-nitrosothiol synthase activity, crucial for NO bioactivity and impaired in hypoxemic diseases.

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