2avl: Difference between revisions
New page: '''Theoretical Model''' The entry 2AVL is a Theoretical Model titled 'Photosystem II photoprotecting protein PSBS with two ZEAXANTHIN'. Category:Theoretical Model ''Page seeded by ... |
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{{Theoretical_model}} | |||
==PHOTOSYSTEM II PHOTOPROTECTING PROTEIN PSBS WITH TWO ZEAXANTHIN== | |||
<StructureSection load='2avl' size='340' side='right'caption='[[2avl]]' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2AVL FirstGlance]. <br> | |||
</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2avl FirstGlance], [https://www.ebi.ac.uk/pdbsum/2avl PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2avl ProSAT]</span></td></tr> | |||
</table> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
A three-dimensional model of the PsbS protein was built with the help of homology-modeling methods. This protein is also known as CP22 and is associated with the protection of photosystem II of thylakoid from excess quanta of light energy absorbed by the photosynthetic apparatus. PsbS is reported to bind two molecules of zeaxanthin at low pH (<5.0) and is believed to be essential for rapid nonphotochemical quenching (qE) of chlorophyll a fluorescence in photosystem II. An attempt was made to explain the pH modulation of the conformation of protein through salt-bridges Glu(-)(122)-Lys(+)(113) and Glu(-)(226)-Lys(+)(217). Binding of two molecules of zeaxanthin in the three-dimensional model of PsbS is postulated. The molecular mechanism of photoprotection by PsbS is explained through the model. | |||
Three-dimensional model of zeaxanthin binding PsbS protein associated with nonphotochemical quenching of excess quanta of light energy absorbed by the photosynthetic apparatus.,Haripal PK, Raval HK, Raval MK, Rawal RM, Biswal B, Biswal UC J Mol Model. 2006 Sep;12(6):847-53. Epub 2006 Mar 15. PMID:16538483<ref>PMID:16538483</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 2avl" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Theoretical Model]] | |||
[[Category: Large Structures]] | |||
[[Category: Biswal, B]] | |||
[[Category: Biswal, U C]] | |||
[[Category: Haripal, P K]] | |||
[[Category: Raval, H K]] | |||
[[Category: Raval, M K]] | |||
[[Category: Rawal, R M]] | |||
Latest revision as of 17:45, 17 November 2021
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PHOTOSYSTEM II PHOTOPROTECTING PROTEIN PSBS WITH TWO ZEAXANTHINPHOTOSYSTEM II PHOTOPROTECTING PROTEIN PSBS WITH TWO ZEAXANTHIN
Structural highlights
Publication Abstract from PubMedA three-dimensional model of the PsbS protein was built with the help of homology-modeling methods. This protein is also known as CP22 and is associated with the protection of photosystem II of thylakoid from excess quanta of light energy absorbed by the photosynthetic apparatus. PsbS is reported to bind two molecules of zeaxanthin at low pH (<5.0) and is believed to be essential for rapid nonphotochemical quenching (qE) of chlorophyll a fluorescence in photosystem II. An attempt was made to explain the pH modulation of the conformation of protein through salt-bridges Glu(-)(122)-Lys(+)(113) and Glu(-)(226)-Lys(+)(217). Binding of two molecules of zeaxanthin in the three-dimensional model of PsbS is postulated. The molecular mechanism of photoprotection by PsbS is explained through the model. Three-dimensional model of zeaxanthin binding PsbS protein associated with nonphotochemical quenching of excess quanta of light energy absorbed by the photosynthetic apparatus.,Haripal PK, Raval HK, Raval MK, Rawal RM, Biswal B, Biswal UC J Mol Model. 2006 Sep;12(6):847-53. Epub 2006 Mar 15. PMID:16538483[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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