5TXV:
reference: Covalently Linked HslU Hexamers Support a Probabilistic Mechanism that Links ATP Hydrolysis to Protein Unfolding and Translocation., Baytshtok V, Chen J, Glynn SE, Nager AR, Grant RA, Baker TA, Sauer RT, J Biol Chem. 2017 Feb 21. pii: jbc.M116.768978. doi: 10.1074/jbc.M116.768978. PMID: 28223361

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