5DUO:
reference: Response to Comment on "Crystal structures of translocator protein (TSPO) and mutant mimic of a human polymorphism"., Li F, Liu J, Zheng Y, Garavito RM, Ferguson-Miller S, Science. 2015 Oct 30;350(6260):519. doi: 10.1126/science.aab2595. Epub 2015 Oct, 29. PMID: 26516277

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