1S3X: The Crystal Structure Of The Human Hsp70 Atpase Domain
reference: Human Hsp70 molecular chaperone binds two calcium ions within the ATPase domain., Sriram M, Osipiuk J, Freeman B, Morimoto R, Joachimiak A, Structure 1997 Mar 15;5(3):403-14. PMID: 9083109

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