Probing the flexibility of the bacterial reaction center: the wild-type protein is more rigid than two site-specific mutants.

Abstract excerpt

Experimental and theoretical studies have stressed the importance of flexibility for protein function. However, more local studies of protein dynamics, using temperature factors from crystallographic data or elastic models of protein mechanics, suggest that active sites are among the most rigid parts of proteins. We have used quasielastic neutron scattering to study the native reaction center protein from the...

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