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US 5,290,699 AGranted
Double mutants of bacteriorhodopsin
AssigneeMax-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.
InventorsDieter Oesterhelt, Susanne Meessen, Jorg Tittor, Anja Matuszak, Klaus May
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Abstract
Double mutants of bacteriorhodopsin are mutated in the amino acid positions 85 and 96 and are expressed in Halobacteria. The mutants have an altered absorption maximum of their ground state and of their intermediate with the longest life. These mutants pump anions in place of protons.
Claims8
A bacteriorhodopsin protein comprising:
- bacteriorhodopsin having aspartic acid mutated to asparagine in amino acid positions 85 and 96 of the opsin of a wild-type strain of Halobacteria.
The H. halobium strain HN5 (DSM 6229).
The vector p319/D85,96N (DSM 6225).
Dependencies are inferred from the claim text.