id author title date pages extension mime words sentences flesch summary cache txt cord-355327-d3gcfepx Fan, Samuel W Conformational changes in redox pairs of protein structures 2009-08-01 .txt text/plain 9859 544 47 Several classes of structural changes were observed, proteins that exhibit: disulfide oxidation following expulsion of metals such as zinc; major reorganisation of the polypeptide backbone in association with disulfide redox-activity; order/disorder transitions; and changes in quaternary structure. These groups were: proteins that oxidize disulfides following expulsion of metals such as Zn; proteins that exhibited major reorganization or ''morphing'' of portions of the polypeptide backbone in association with disulfide redox-activity; proteins that exhibited order/disorder transitions; and proteins that exhibited changes in quaternary structure. Twenty-nine Redox Pair protein clusters with intermolecular disulfide bonds exhibit changes in quaternary structure upon oxidation/reduction. We were previously aware of two instances where subdomain morphing of proteins has been associated with reversible disulfide reduction: a redox-controlled structural reorganization of the ion channel CLIC1 proposed to regulate its insertion into membranes, 18 and sequential oxidation of the transcription factor OxyR in response to oxidative stress which modulates its quaternary structure and DNA-binding properties. ./cache/cord-355327-d3gcfepx.txt ./txt/cord-355327-d3gcfepx.txt