1xqi: Difference between revisions
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==Crystal Structure Analysis of an NDP kinase from Pyrobaculum aerophilum== | |||
<StructureSection load='1xqi' size='340' side='right'caption='[[1xqi]], [[Resolution|resolution]] 2.50Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1xqi]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Pyrobaculum_aerophilum Pyrobaculum aerophilum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1XQI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1XQI FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene>, <scene name='pdbligand=PGE:TRIETHYLENE+GLYCOL'>PGE</scene>, <scene name='pdbligand=TRS:2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL'>TRS</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=1xqi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1xqi OCA], [https://pdbe.org/1xqi PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1xqi RCSB], [https://www.ebi.ac.uk/pdbsum/1xqi PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1xqi ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/NDK_PYRAE NDK_PYRAE] Major role in the synthesis of nucleoside triphosphates other than ATP. The ATP gamma phosphate is transferred to the NDP beta phosphate via a ping-pong mechanism, using a phosphorylated active-site intermediate (By similarity). | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/xq/1xqi_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</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=1xqi ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Nucleoside diphosphate (NDP) kinases are ubiquitous enzymes that transfer gamma-phosphates from nucleoside triphosphates to nucleoside diphosphates via a ping-pong mechanism. The important role of this large family of enzymes in controlling cellular functions and developmental processes along with their crystallizability has made them good candidates for structural studies. We recently determined the structure of an evolved version of an NDP kinase from Pyrobaculum aerophilum, an extreme thermophile. This NDP kinase has similarity to the 42 other NDP kinases deposited in the Protein Data Bank (PDB) but differs significantly in sequence, structure, and biophysical properties. The P. aerophilum NDP kinase sequence contains two unique segments not present in other NDP kinases, comprising residues 66-100 and 156-165. We show that deletion mutants of the P. aerophilum NDP kinase lacking either or both of these inserts have an altered substrate specificity, allowing dGTP as the phosphate donor. A structural analysis of the evolved NDP kinase in conjunction with mutagenesis experiments suggests that the substrate specificity of the P. aerophilum NDP kinase is related to the presence of these two inserts. | |||
Structural and functional features of an NDP kinase from the hyperthermophile crenarchaeon Pyrobaculum aerophilum.,Pedelacq JD, Waldo GS, Cabantous S, Liong EC, Terwilliger TC Protein Sci. 2005 Oct;14(10):2562-73. PMID:16195547<ref>PMID:16195547</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 1xqi" style="background-color:#fffaf0;"></div> | |||
==See Also== | ==See Also== | ||
*[[Nucleoside diphosphate kinase|Nucleoside diphosphate kinase]] | *[[Nucleoside diphosphate kinase 3D structures|Nucleoside diphosphate kinase 3D structures]] | ||
== References == | |||
== | <references/> | ||
< | __TOC__ | ||
[[Category: | </StructureSection> | ||
[[Category: Large Structures]] | |||
[[Category: Pyrobaculum aerophilum]] | [[Category: Pyrobaculum aerophilum]] | ||
[[Category: Berendzen | [[Category: Berendzen J]] | ||
[[Category: Cabantous | [[Category: Cabantous S]] | ||
[[Category: Liong | [[Category: Liong EC]] | ||
[[Category: Pedelacq | [[Category: Pedelacq JD]] | ||
[[Category: Terwilliger | [[Category: Terwilliger TC]] | ||
[[Category: Waldo | [[Category: Waldo GS]] | ||
Latest revision as of 10:38, 30 October 2024
Crystal Structure Analysis of an NDP kinase from Pyrobaculum aerophilumCrystal Structure Analysis of an NDP kinase from Pyrobaculum aerophilum
Structural highlights
FunctionNDK_PYRAE Major role in the synthesis of nucleoside triphosphates other than ATP. The ATP gamma phosphate is transferred to the NDP beta phosphate via a ping-pong mechanism, using a phosphorylated active-site intermediate (By similarity). Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedNucleoside diphosphate (NDP) kinases are ubiquitous enzymes that transfer gamma-phosphates from nucleoside triphosphates to nucleoside diphosphates via a ping-pong mechanism. The important role of this large family of enzymes in controlling cellular functions and developmental processes along with their crystallizability has made them good candidates for structural studies. We recently determined the structure of an evolved version of an NDP kinase from Pyrobaculum aerophilum, an extreme thermophile. This NDP kinase has similarity to the 42 other NDP kinases deposited in the Protein Data Bank (PDB) but differs significantly in sequence, structure, and biophysical properties. The P. aerophilum NDP kinase sequence contains two unique segments not present in other NDP kinases, comprising residues 66-100 and 156-165. We show that deletion mutants of the P. aerophilum NDP kinase lacking either or both of these inserts have an altered substrate specificity, allowing dGTP as the phosphate donor. A structural analysis of the evolved NDP kinase in conjunction with mutagenesis experiments suggests that the substrate specificity of the P. aerophilum NDP kinase is related to the presence of these two inserts. Structural and functional features of an NDP kinase from the hyperthermophile crenarchaeon Pyrobaculum aerophilum.,Pedelacq JD, Waldo GS, Cabantous S, Liong EC, Terwilliger TC Protein Sci. 2005 Oct;14(10):2562-73. PMID:16195547[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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