bacteriorhodopsin


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bacteriorhodopsin

(băk-tîr′ē-ō-rō-dŏp′sĭn)
n.
A pigmented membrane protein found in extremely halophilic archaea of the genus Halobacterium that converts light energy to chemical energy and is structurally similar to rhodopsin.
References in periodicals archive ?
The membrane's purple color comes from a bacteriorhodopsin component called retinal, which is strongly bound to an amino acid inside the membrane channel.
That behavior has prompted research on the use of bacteriorhodopsin as the light-sensitive element in artificial retinas and as memory or processing units in protein-based or optical computers (SN: 3/8/97, p.
A thin film of bacteriorhodopsin can also change its color in response to an external electric field.
Like ink on paper, images on a bacteriorhodopsin display are visible in ambient light.
Several groups have used bacteriorhodopsin as computer memory and as the light-sensitive element in artificial retinas.
Aaron Lewis and his colleagues at the Hebrew University of Jerusalem impregnated a plastic film with equal concentrations of the purple and yellow forms of bacteriorhodopsin.
That varying intensity altered the relative concentrations of the purple and yellow forms of bacteriorhodopsin.