PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 30593501-6 2019 We observed that Grx1 reduces GSH-containing disulfides (including oxidized trypanothione) in very fast reactions (k > 5 x 105 m-1 s-1). Disulfides 45-55 glutaredoxin Homo sapiens 17-21 30593501-9 2019 This kinetic selectivity in the reduction step of the catalytic cycle suggests that Grx1 uses preferentially a dithiol mechanism, forming a disulfide on the active site during the oxidative half of the catalytic cycle and then being rapidly reduced by T(SH)2 in the reductive half. Disulfides 140-149 glutaredoxin Homo sapiens 84-88