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Biosynthesis of the two halobacterial light sensors P480 and sensory rhodopsin and variation in gain of their signal transduction chains.

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Desel,  H.
Abteilung Neurobiologie, MPI for biophysical chemistry, Max Planck Society;

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Uhl,  R.
Abteilung Neurobiologie, MPI for biophysical chemistry, Max Planck Society;

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Citation

Otomo, J., Marwan, W., Oesterhelt, D., Desel, H., & Uhl, R. (1989). Biosynthesis of the two halobacterial light sensors P480 and sensory rhodopsin and variation in gain of their signal transduction chains. Journal of Bacteriology, 171(4), 2155-2159. doi:10.1128/jb.171.4.2155-2159.1989.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002C-5B8E-D
Abstract
The two retinal-containing photoreceptors of halobacteria, P480 and sensory rhodopsin, are formed constitutively and inducibly, respectively. Both photoreceptors are synthesized as apoproteins in cells with nicotine-inhibited retinal synthesis and are reconstituted as chromoproteins by the addition of all-trans retinal to cell membrane preparations. The decrease in photoreceptor-mediated photophobic response at the stationary growth phase of cells is not due to photoreceptor degradation but due to a deficiency of the signal transduction chain in the cell.