Protonation state of Asp (Glu)-85 regulates the purple-to-blue transition in bacteriorhodopsin mutants Arg-82----Ala and Asp-85----Glu: the blue form is inactive in proton translocation.
Previous studies with site-specific mutants of bacteriorhodopsin have demonstrated that replacement of Asp-85 or Arg-82 affects the absorption spectrum. Between pH 5.5 and 7, the Asp-85----Glu and Arg-82----Ala mutants exist in a pH-dependent equilibrium between purple (lambda max approximately 550/...
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| Udgivet i: | Proc Natl Acad Sci U S A |
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| Principais autores: | , , |
| Format: | Artigo |
| Sprog: | Inglês |
| Udgivet: |
National Academy of Sciences
1990
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| Fag: | |
| Online adgang: | https://ncbi.nlm.nih.govhttps://pmc.ncbi.nlm.nih.gov/articles/PMC53400/ https://ncbi.nlm.nih.govhttps://pubmed.ncbi.nlm.nih.gov/1967832/ https://ncbi.nlm.nih.govhttps://doi.org/10.1073/pnas.87.3.1013 |
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