IndraLab

Statements


Heme activates KCNMA1. 2 / 2
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"Native maxi-K + channels recorded in patches excised from glomus cells were activated by HO-2 substrates (heme and NADPH); thus it was proposed that HO-2 acts as an O 2 sensor through the production of CO, which is by itself a maxi-K + channel activator."

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"Soluble guanylyl cyclase (sGC) contains an iron (heme) center that serves to bind NO, however, this site is also targeted by CO, which can activate sGC, leading to increased cytosolic [cGMP], PKG activation and enhanced BK channel activity."