PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 23798702-2 2013 S-Oxidation of RyR1 is coupled to muscle oxygen tension (pO2) through O2-dependent production of hydrogen peroxide by SR-resident NADPH oxidase 4. PO-2 57-60 ryanodine receptor 1 Homo sapiens 15-19 23798702-3 2013 In isolated SR (SR vesicles), an average of six to eight Cys thiols/RyR1 monomer are reversibly oxidized at high (21% O2) versus low pO2 (1% O2), but their identity among the 100 Cys residues/RyR1 monomer is unknown. PO-2 133-136 ryanodine receptor 1 Homo sapiens 68-72 23798702-4 2013 Here we use isotope-coded affinity tag labeling and mass spectrometry (yielding 93% coverage of RyR1 Cys residues) to identify 13 Cys residues subject to pO2-coupled S-oxidation in SR vesicles. PO-2 154-157 ryanodine receptor 1 Homo sapiens 96-100