Mutation of a Surface Residue, Lysine-129, Reverses the Order of Proton Release and Uptake in Bacteriorhodopsin; Guanidine Hydrochloride Restores It

K129 is a residue located in the extracellular loop connecting transmembrane helices D and E of bacteriorhodopsin. Replacement of K129 with a histidine alters the pK(a)'s of two key residues in the proton transport pathway, D85, and the proton release group (probably E204); the resulting pigmen...

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Detalles Bibliográficos
Autores principales: Govindjee, Rajni, Imasheva, Eleonora S., Misra, Saurav, Balashov, Sergei P., Ebrey, Thomas G., Chen, Ning, Menick, Donald R., Crouch, Rosalie K.
Formato: Artigo
Lenguaje:Inglês
Publicado: 1997
Materias:
Photobiophysics
Acceso en línea:https://ncbi.nlm.nih.gov/pmc/articles/PMC1185612/
https://ncbi.nlm.nih.gov/pubmed/9017214
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