2CG9:
reference: Crystal structure of an Hsp90-nucleotide-p23/Sba1 closed chaperone complex., Ali MM, Roe SM, Vaughan CK, Meyer P, Panaretou B, Piper PW, Prodromou C, Pearl LH, Nature. 2006 Apr 20;440(7087):1013-7. PMID: 16625188

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