1HNC:
reference: Crystal structure of human class mu glutathione transferase GSTM2-2. Effects of lattice packing on conformational heterogeneity., Raghunathan S, Chandross RJ, Kretsinger RH, Allison TJ, Penington CJ, Rule GS, J Mol Biol 1994 May 20;238(5):815-32. PMID: 8182750

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