6MSQ:
reference: De novo design of tunable, pH-driven conformational changes., Boyken SE, Benhaim MA, Busch F, Jia M, Bick MJ, Choi H, Klima JC, Chen Z, Walkey C, Mileant A, Sahasrabuddhe A, Wei KY, Hodge EA, Byron S, Quijano-Rubio A, Sankaran B, King NP, Lippincott-Schwartz J, Wysocki VH, Lee KK, Baker D, Science. 2019 May 17;364(6441):658-664. doi: 10.1126/science.aav7897. PMID: 31097662

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