2qqe: Difference between revisions

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<StructureSection load='2qqe' size='340' side='right'caption='[[2qqe]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
<StructureSection load='2qqe' size='340' side='right'caption='[[2qqe]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[2qqe]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Atcc_43589 Atcc 43589]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2QQE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2QQE FirstGlance]. <br>
<table><tr><td colspan='2'>[[2qqe]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermotoga_maritima Thermotoga maritima]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2QQE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2QQE FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=THM:THYMIDINE'>THM</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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]] 1.9&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2qpo|2qpo]], [[2qq0|2qq0]]</div></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=THM:THYMIDINE'>THM</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">tdk ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2336 ATCC 43589])</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Thymidine_kinase Thymidine kinase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.21 2.7.1.21] </span></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=2qqe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qqe OCA], [https://pdbe.org/2qqe PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2qqe RCSB], [https://www.ebi.ac.uk/pdbsum/2qqe PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2qqe ProSAT]</span></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=2qqe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qqe OCA], [https://pdbe.org/2qqe PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2qqe RCSB], [https://www.ebi.ac.uk/pdbsum/2qqe PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2qqe ProSAT]</span></td></tr>
</table>
</table>
== Function ==
[https://www.uniprot.org/uniprot/KITH_THEMA KITH_THEMA]
== 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=2qqe 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=2qqe ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The human cytosolic thymidine kinase (TK) and structurally related TKs in prokaryotes play a crucial role in the synthesis and regulation of the cellular thymidine triphosphate pool. We report the crystal structures of the TK homotetramer from Thermotoga maritima in four different states: its apo-form, a binary complex with thymidine, as well as the ternary structures with the two substrates (thymidine/AppNHp) and the reaction products (TMP/ADP). In combination with fluorescence spectroscopy and mutagenesis experiments, our results demonstrate that ATP binding is linked to a substantial reorganization of the enzyme quaternary structure, leading to a transition from a closed, inactive conformation to an open, catalytic state. We hypothesize that these structural changes are relevant to enzyme function in situ as part of the catalytic cycle and serve an important role in regulating enzyme activity by amplifying the effects of feedback inhibitor binding.
Quaternary structure change as a mechanism for the regulation of thymidine kinase 1-like enzymes.,Segura-Pena D, Lichter J, Trani M, Konrad M, Lavie A, Lutz S Structure. 2007 Dec;15(12):1555-66. PMID:18073106<ref>PMID:18073106</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2qqe" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[Thymidine kinase|Thymidine kinase]]
*[[Thymidine kinase 3D structures|Thymidine kinase 3D structures]]
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Atcc 43589]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Thymidine kinase]]
[[Category: Thermotoga maritima]]
[[Category: Konrad, M]]
[[Category: Konrad M]]
[[Category: Lavie, A]]
[[Category: Lavie A]]
[[Category: Lichter, J]]
[[Category: Lichter J]]
[[Category: Lutz, S]]
[[Category: Lutz S]]
[[Category: Segura-Pena, D]]
[[Category: Segura-Pena D]]
[[Category: Trani, M]]
[[Category: Trani M]]
[[Category: Atp-binding]]
[[Category: Close conformation]]
[[Category: Cytoplasm]]
[[Category: Dna synthesis]]
[[Category: Kinase]]
[[Category: Nucleotide-binding]]
[[Category: Tmtk in complex with thymidine]]
[[Category: Transferase]]

Latest revision as of 12:17, 21 February 2024

Thymidine Kinase from Thermotoga Maritima in complex with ThymidineThymidine Kinase from Thermotoga Maritima in complex with Thymidine

Structural highlights

2qqe is a 2 chain structure with sequence from Thermotoga maritima. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.9Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

KITH_THEMA

Evolutionary Conservation

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

See Also

2qqe, resolution 1.90Å

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OCA
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