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==CRYSTAL STRUCTURE OF HIGH-POTENTIAL IRON-SULFUR PROTEIN FROM THERMOCHROMATIUM TEPIDUM==
==CRYSTAL STRUCTURE OF HIGH-POTENTIAL IRON-SULFUR PROTEIN FROM THERMOCHROMATIUM TEPIDUM==
<StructureSection load='1eyt' size='340' side='right' caption='[[1eyt]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
<StructureSection load='1eyt' size='340' side='right'caption='[[1eyt]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1eyt]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Thermochromatium_tepidum Thermochromatium tepidum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1EYT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1EYT FirstGlance]. <br>
<table><tr><td colspan='2'>[[1eyt]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermochromatium_tepidum Thermochromatium tepidum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1EYT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1EYT FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.5&#8491;</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1eyt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1eyt OCA], [http://pdbe.org/1eyt PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1eyt RCSB], [http://www.ebi.ac.uk/pdbsum/1eyt PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1eyt ProSAT]</span></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></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=1eyt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1eyt OCA], [https://pdbe.org/1eyt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1eyt RCSB], [https://www.ebi.ac.uk/pdbsum/1eyt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1eyt ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/HIP_THETI HIP_THETI]] Specific class of high-redox-potential 4Fe-4S ferredoxins. Functions in anaerobic electron transport in most purple and in some other photosynthetic bacteria and in at least one genus (Paracoccus) of halophilic, denitrifying bacteria.  
[https://www.uniprot.org/uniprot/HIP_THETI HIP_THETI] Specific class of high-redox-potential 4Fe-4S ferredoxins. Functions in anaerobic electron transport in most purple and in some other photosynthetic bacteria and in at least one genus (Paracoccus) of halophilic, denitrifying bacteria.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1eyt ConSurf].
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1eyt ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The reaction center (RC) of photosynthetic bacteria is a membrane protein complex that promotes a light-induced charge separation during the primary process of photosynthesis. In the photosynthetic electron transfer chain, the soluble electron carrier proteins transport electrons to the RC and reduce the photo-oxidized special-pair of bacteriochlorophyll. The high-potential iron-sulfur protein (HiPIP) is known to serve as an electron donor to the RC in some species, where the c-type cytochrome subunit, the peripheral subunit of the RC, directly accepts electrons from the HiPIP. Here we report the crystal structures of the RC and the HiPIP from Thermochromatium (Tch.) tepidum, at 2.2-A and 1.5-A resolution, respectively. Tch. tepidum can grow at the highest temperature of all known purple bacteria, and the Tch. tepidum RC shows some degree of stability to high temperature. Comparison with the RCs of mesophiles, such as Blastochloris viridis, has shown that the Tch. tepidum RC possesses more Arg residues at the membrane surface, which might contribute to the stability of this membrane protein. The RC and the HiPIP both possess hydrophobic patches on their respective surfaces, and the HiPIP is expected to interact with the cytochrome subunit by hydrophobic interactions near the heme-1, the most distal heme to the special-pair.
Crystal structures of photosynthetic reaction center and high-potential iron-sulfur protein from Thermochromatium tepidum: thermostability and electron transfer.,Nogi T, Fathir I, Kobayashi M, Nozawa T, Miki K Proc Natl Acad Sci U S A. 2000 Dec 5;97(25):13561-6. PMID:11095707<ref>PMID:11095707</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1eyt" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Large Structures]]
[[Category: Thermochromatium tepidum]]
[[Category: Thermochromatium tepidum]]
[[Category: Fathir, I]]
[[Category: Fathir I]]
[[Category: Kobayashi, M]]
[[Category: Kobayashi M]]
[[Category: Miki, K]]
[[Category: Miki K]]
[[Category: Nogi, T]]
[[Category: Nogi T]]
[[Category: Nozawa, T]]
[[Category: Nozawa T]]
[[Category: Electron transport]]
[[Category: Iron-sulfur protein]]

Latest revision as of 10:08, 7 February 2024

CRYSTAL STRUCTURE OF HIGH-POTENTIAL IRON-SULFUR PROTEIN FROM THERMOCHROMATIUM TEPIDUMCRYSTAL STRUCTURE OF HIGH-POTENTIAL IRON-SULFUR PROTEIN FROM THERMOCHROMATIUM TEPIDUM

Structural highlights

1eyt is a 1 chain structure with sequence from Thermochromatium tepidum. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.5Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

HIP_THETI Specific class of high-redox-potential 4Fe-4S ferredoxins. Functions in anaerobic electron transport in most purple and in some other photosynthetic bacteria and in at least one genus (Paracoccus) of halophilic, denitrifying bacteria.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

1eyt, resolution 1.50Å

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