2bhw
From Proteopedia
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| - | [[Image:2bhw.gif|left|200px]]<br /><applet load="2bhw" size=" | + | [[Image:2bhw.gif|left|200px]]<br /><applet load="2bhw" size="350" color="white" frame="true" align="right" spinBox="true" |
caption="2bhw, resolution 2.5Å" /> | caption="2bhw, resolution 2.5Å" /> | ||
'''PEA LIGHT-HARVESTING COMPLEX II AT 2.5 ANGSTROM RESOLUTION'''<br /> | '''PEA LIGHT-HARVESTING COMPLEX II AT 2.5 ANGSTROM RESOLUTION'''<br /> | ||
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==About this Structure== | ==About this Structure== | ||
| - | 2BHW is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Pisum_sativum Pisum sativum] with LUX, NEX, XAT, CLA, CHL, LHG and DGD as [http://en.wikipedia.org/wiki/ligands ligands]. Known structural/functional Site: <scene name='pdbsite=AC1:Dgd Binding Site For Chain C'>AC1</scene>. Full crystallographic information is available from [http:// | + | 2BHW is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Pisum_sativum Pisum sativum] with <scene name='pdbligand=LUX:'>LUX</scene>, <scene name='pdbligand=NEX:'>NEX</scene>, <scene name='pdbligand=XAT:'>XAT</scene>, <scene name='pdbligand=CLA:'>CLA</scene>, <scene name='pdbligand=CHL:'>CHL</scene>, <scene name='pdbligand=LHG:'>LHG</scene> and <scene name='pdbligand=DGD:'>DGD</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Known structural/functional Site: <scene name='pdbsite=AC1:Dgd+Binding+Site+For+Chain+C'>AC1</scene>. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BHW OCA]. |
==Reference== | ==Reference== | ||
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[[Category: transmembrane]] | [[Category: transmembrane]] | ||
| - | ''Page seeded by [http:// | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Feb 3 10:24:16 2008'' |
Revision as of 08:24, 3 February 2008
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PEA LIGHT-HARVESTING COMPLEX II AT 2.5 ANGSTROM RESOLUTION
Overview
The plant light-harvesting complex of photosystem II (LHC-II) collects and, transmits solar energy for photosynthesis in chloroplast membranes and has, essential roles in regulation of photosynthesis and in photoprotection., The 2.5 A structure of pea LHC-II determined by X-ray crystallography of, stacked two-dimensional crystals shows how membranes interact to form, chloroplast grana, and reveals the mutual arrangement of 42 chlorophylls a, and b, 12 carotenoids and six lipids in the LHC-II trimer. Spectral, assignment of individual chlorophylls indicates the flow of energy in the, complex and the mechanism of photoprotection in two close chlorophyll, a-lutein pairs. We propose a simple mechanism for the xanthophyll-related, slow component of nonphotochemical quenching in LHC-II, by which excess, energy is transferred to a zeaxanthin replacing violaxanthin in its, binding site, and dissipated as heat. Our structure shows the complex in a, quenched state, which may be relevant for the rapid, pH-induced component, of nonphotochemical quenching.
About this Structure
2BHW is a Single protein structure of sequence from Pisum sativum with , , , , , and as ligands. Known structural/functional Site: . Full crystallographic information is available from OCA.
Reference
Mechanisms of photoprotection and nonphotochemical quenching in pea light-harvesting complex at 2.5 A resolution., Standfuss J, Terwisscha van Scheltinga AC, Lamborghini M, Kuhlbrandt W, EMBO J. 2005 Mar 9;24(5):919-28. Epub 2005 Feb 17. PMID:15719016
Page seeded by OCA on Sun Feb 3 10:24:16 2008
Categories: Pisum sativum | Single protein | Kuehlbrandt, W. | Lamborghini, M. | Scheltinga, A.C.Terwisscha.Van. | Standfuss, J. | CHL | CLA | DGD | LHG | LUX | NEX | XAT | Chlorophyll | Chloroplast | Chromophore | Lhc-ii | Light-harvesting | Membrane | Membrane protein | Phosphorylation | Photosynthesis | Photosystem i | Photosystem ii | Plastid | Thylakoid | Transit peptide | Transmembrane
