Title : Folding of the glucocorticoid receptor by the reconstituted Hsp90-based chaperone machinery. The initial hsp90.p60.hsp70-dependent step is sufficient for creating the steroid binding conformation.

Pub. Date : 1997 May 16

PMID : 9148915






7 Functional Relationships(s)
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1 The initial hsp90.p60.hsp70-dependent step is sufficient for creating the steroid binding conformation. Steroids heat shock protein 90 alpha family class A member 1 Homo sapiens
2 The glucocorticoid receptor (GR) is bound to hsp90 via its hormone binding domain (HBD), which must be associated with hsp90 to have a steroid binding conformation. Steroids heat shock protein 90 alpha family class A member 1 Homo sapiens
3 The glucocorticoid receptor (GR) is bound to hsp90 via its hormone binding domain (HBD), which must be associated with hsp90 to have a steroid binding conformation. Steroids heat shock protein 90 alpha family class A member 1 Homo sapiens
4 In this work we show that when the GR is incubated with hsp90, hsp70, and p60, steroid binding sites are generated despite the absence of p23. Steroids heat shock protein 90 alpha family class A member 1 Homo sapiens
5 Mixture of purified rabbit hsp90 and hsp70 with bacterial lysate containing human p60 results in spontaneous formation of an hsp90.p60.hsp70 complex that can be adsorbed with anti-p60 antibody, and the resulting immune complex converts the GR HBD to a steroid binding state in an ATP-dependent and K+-dependent manner. Steroids heat shock protein 90 alpha family class A member 1 Homo sapiens
6 Mixture of purified rabbit hsp90 and hsp70 with bacterial lysate containing human p60 results in spontaneous formation of an hsp90.p60.hsp70 complex that can be adsorbed with anti-p60 antibody, and the resulting immune complex converts the GR HBD to a steroid binding state in an ATP-dependent and K+-dependent manner. Steroids heat shock protein 90 alpha family class A member 1 Homo sapiens
7 Our data suggest that hsp90, hsp70, and p60 work together as a chaperone complex that possesses all of the folding/unfolding activity necessary to generate the high affinity steroid binding conformation of the receptor. Steroids heat shock protein 90 alpha family class A member 1 Homo sapiens