1xio
From Proteopedia
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|PDB= 1xio |SIZE=350|CAPTION= <scene name='initialview01'>1xio</scene>, resolution 2.000Å | |PDB= 1xio |SIZE=350|CAPTION= <scene name='initialview01'>1xio</scene>, resolution 2.000Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= <scene name='pdbligand= | + | |LIGAND= <scene name='pdbligand=PEE:PHOSPHATIDYLETHANOLAMINE'>PEE</scene>, <scene name='pdbligand=RET:RETINAL'>RET</scene> |
|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1xio FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1xio OCA], [http://www.ebi.ac.uk/pdbsum/1xio PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1xio RCSB]</span> | ||
}} | }} | ||
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[[Category: Luecke, H.]] | [[Category: Luecke, H.]] | ||
[[Category: Vogeley, L.]] | [[Category: Vogeley, L.]] | ||
| - | [[Category: PEE]] | ||
| - | [[Category: RET]] | ||
[[Category: photoreceptor]] | [[Category: photoreceptor]] | ||
[[Category: signaling protein]] | [[Category: signaling protein]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 00:50:10 2008'' |
Revision as of 21:50, 30 March 2008
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| , resolution 2.000Å | |||||||
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| Ligands: | , | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Anabaena sensory rhodopsin
Overview
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.
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
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