5SUL:
reference: Redox Switch for the Inhibited State of Yeast Glycogen Synthase Mimics Regulation by Phosphorylation., Mahalingan KK, Baskaran S, DePaoli-Roach AA, Roach PJ, Hurley TD, Biochemistry. 2017 Jan 10;56(1):179-188. doi: 10.1021/acs.biochem.6b00884. Epub, 2016 Dec 20. PMID: 27935293

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