Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\25210031
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Biol+Chem
2014 ; 289
(44
): 30205-30212
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Evolutionary aspects of enzyme dynamics
#MMPMID25210031
Klinman JP
; Kohen A
J Biol Chem
2014[Oct]; 289
(44
): 30205-30212
PMID25210031
show ga
The role of evolutionary pressure on the chemical step catalyzed by enzymes is
somewhat enigmatic, in part because chemistry is not rate-limiting for many
optimized systems. Herein, we present studies that examine various aspects of the
evolutionary relationship between protein dynamics and the chemical step in two
paradigmatic enzyme families, dihydrofolate reductases and alcohol
dehydrogenases. Molecular details of both convergent and divergent evolution are
beginning to emerge. The findings suggest that protein dynamics across an entire
enzyme can play a role in adaptation to differing physiological conditions. The
growing tool kit of kinetics, kinetic isotope effects, molecular biology,
biophysics, and bioinformatics provides means to link evolutionary changes in
structure-dynamics function to the vibrational and conformational states of each
protein.