3CTF:
reference: Structural basis for the different activities of yeast Grx1 and Grx2., Li WF, Yu J, Ma XX, Teng YB, Luo M, Tang YJ, Zhou CZ, Biochim Biophys Acta. 2010 Jul;1804(7):1542-7. Epub 2010 Apr 24. PMID: 20417731

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