PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22967951-2 2013 MsrA oxidation mechanism occurs in three consecutive, pH dependent steps, corresponding to the oxidation of tyrosine, tryptophan and histidine amino acid residues. histidine amino acid 133-153 methionine sulfoxide reductase A Homo sapiens 0-4