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Team:Tokyo-NoKoGen/Project/rhodopsin
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| + | <font size=32>Sensory rhodopsin</font> | ||
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| + | <B>Background</b> | ||
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| + | Halophilic archaea, such as Halobacterium salinarum and Natronobacterium pharaonis show phototaxis by responding to changes in light color and intensity using receptors called sensory rhodopsin I and II (SRI and SRII). The SR proteins are seven-transmembrane retinylidene photoreceptors, which transmits blue light signal (λmax 487 nm) to their corresponding transducers HtrI and HtrII respectively. signals to Htr proteins via helix-helix interaction. Htr proteins consist of two transmembrane helices and cytoplasmic methyl-accepting and His-Kinase domains, and belongs to histidine kinase / phosphoreregulator two-component system for regulating cells’ flagellar motors for phototaxis. | ||
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Revision as of 06:51, 21 September 2012
Tokyo-NoKoGen
2012
- overview
- lux operon
- rhodopsin
- modelling
- Future work
- project
Sensory rhodopsin
Background
Halophilic archaea, such as Halobacterium salinarum and Natronobacterium pharaonis show phototaxis by responding to changes in light color and intensity using receptors called sensory rhodopsin I and II (SRI and SRII). The SR proteins are seven-transmembrane retinylidene photoreceptors, which transmits blue light signal (λmax 487 nm) to their corresponding transducers HtrI and HtrII respectively. signals to Htr proteins via helix-helix interaction. Htr proteins consist of two transmembrane helices and cytoplasmic methyl-accepting and His-Kinase domains, and belongs to histidine kinase / phosphoreregulator two-component system for regulating cells’ flagellar motors for phototaxis.
