1xio

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[[Image:1xio.jpg|left|200px]]
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{{Seed}}
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[[Image:1xio.png|left|200px]]
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{{STRUCTURE_1xio| PDB=1xio | SCENE= }}
{{STRUCTURE_1xio| PDB=1xio | SCENE= }}
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'''Anabaena sensory rhodopsin'''
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===Anabaena sensory rhodopsin===
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==Overview==
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Microbial sensory rhodopsins are a family of membrane-embedded photoreceptors in prokaryotic and eukaryotic organisms. Structures of archaeal rhodopsins, which function as light-driven ion pumps or photosensors, have been reported. We present the structure of a eubacterial rhodopsin, which differs from those of previously characterized archaeal rhodopsins in its chromophore and cytoplasmic-side portions. Anabaena sensory rhodopsin exhibits light-induced interconversion between stable 13-cis and all-trans states of the retinylidene protein. The ratio of its cis and trans chromophore forms depends on the wavelength of illumination, thus providing a mechanism for a single protein to signal the color of light, for example, to regulate color-sensitive processes such as chromatic adaptation in photosynthesis. Its cytoplasmic half channel, highly hydrophobic in the archaeal rhodopsins, contains numerous hydrophilic residues networked by water molecules, providing a connection from the photoactive site to the cytoplasmic surface believed to interact with the receptor's soluble 14-kilodalton transducer.
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(as it appears on PubMed at http://www.pubmed.gov), where 15459346 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15459346}}
==About this Structure==
==About this Structure==
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[[Category: Photoreceptor]]
[[Category: Photoreceptor]]
[[Category: Signaling protein]]
[[Category: Signaling protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 15:04:54 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 13:41:19 2008''

Revision as of 10:41, 29 July 2008

Image:1xio.png

Template:STRUCTURE 1xio

Anabaena sensory rhodopsin

Template:ABSTRACT PUBMED 15459346

About this Structure

1XIO is a Single protein structure of sequence from Anabaena sp.. Full crystallographic information is available from OCA.

Reference

Anabaena sensory rhodopsin: a photochromic color sensor at 2.0 A., Vogeley L, Sineshchekov OA, Trivedi VD, Sasaki J, Spudich JL, Luecke H, Science. 2004 Nov 19;306(5700):1390-3. Epub 2004 Sep 30. PMID:15459346

Page seeded by OCA on Tue Jul 29 13:41:19 2008

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