4AF2:
reference: The structure of an orthorhombic crystal form of a `forced reduced' thiol peroxidase reveals lattice formation aided by the presence of the affinity tag., Beckham KS, Byron O, Roe AJ, Gabrielsen M, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2012 May 1;68(Pt 5):522-6. Epub, 2012 Apr 20. PMID: 22691780

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