PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21896730-4 2011 Thus, Nox4 is an O(2) sensor in skeletal muscle, and O(2)-coupled hydrogen peroxide production by Nox4 governs the redox state of regulatory RyR1 thiols and thereby governs muscle performance. Hydrogen Peroxide 66-83 ryanodine receptor 1 Homo sapiens 141-145