Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=25468961
&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215
Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\25468961
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Proc+Natl+Acad+Sci+U+S+A
2014 ; 111
(50
): 17881-6
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
The charged linker of the molecular chaperone Hsp90 modulates domain contacts and
biological function
#MMPMID25468961
Jahn M
; Rehn A
; Pelz B
; Hellenkamp B
; Richter K
; Rief M
; Buchner J
; Hugel T
Proc Natl Acad Sci U S A
2014[Dec]; 111
(50
): 17881-6
PMID25468961
show ga
The heat shock protein 90 (Hsp90) is a dimeric molecular chaperone essential in
numerous cellular processes. Its three domains (N, M, and C) are connected via
linkers that allow the rearrangement of domains during Hsp90's chaperone cycle. A
unique linker, called charged linker (CL), connects the N- and M-domain of Hsp90.
We used an integrated approach, combining single-molecule techniques and
biochemical and in vivo methods, to study the unresolved structure and function
of this region. Here we show that the CL facilitates intramolecular
rearrangements on the milliseconds timescale between a state in which the
N-domain is docked to the M-domain and a state in which the N-domain is more
flexible. The docked conformation is stabilized by 1.1 kBT (2.7 kJ/mol) through
binding of the CL to the N-domain of Hsp90. Docking and undocking of the CL
affects the much slower intermolecular domain movement and Hsp90's chaperone
cycle governing client activation, cell viability, and stress tolerance.