4JNE:
reference: Allosteric opening of the polypeptide-binding site when an Hsp70 binds ATP., Qi R, Sarbeng EB, Liu Q, Le KQ, Xu X, Xu H, Yang J, Wong JL, Vorvis C, Hendrickson WA, Zhou L, Liu Q, Nat Struct Mol Biol. 2013 Jul;20(7):900-7. doi: 10.1038/nsmb.2583. Epub 2013 May , 26. PMID: 23708608

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