3ezh

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<StructureSection load='3ezh' size='340' side='right'caption='[[3ezh]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
<StructureSection load='3ezh' size='340' side='right'caption='[[3ezh]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[3ezh]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Ecoli Ecoli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3EZH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3EZH FirstGlance]. <br>
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<table><tr><td colspan='2'>[[3ezh]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3EZH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3EZH FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NO3:NITRATE+ION'>NO3</scene></td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.7&#8491;</td></tr>
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<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
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<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=NO3:NITRATE+ION'>NO3</scene></td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3ezi|3ezi]]</div></td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">b1222, JW1213, narR, narX ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83333 ECOLI])</td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Histidine_kinase Histidine kinase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.13.3 2.7.13.3] </span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3ezh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ezh OCA], [https://pdbe.org/3ezh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3ezh RCSB], [https://www.ebi.ac.uk/pdbsum/3ezh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3ezh 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=3ezh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ezh OCA], [https://pdbe.org/3ezh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3ezh RCSB], [https://www.ebi.ac.uk/pdbsum/3ezh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3ezh ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[https://www.uniprot.org/uniprot/NARX_ECOLI NARX_ECOLI]] Acts as a sensor for nitrate/nitrite and transduces signal of nitrate availability to the NarL protein and of both nitrate/nitrite to the NarP protein. NarX probably activates NarL and NarP by phosphorylation in the presence of nitrate. NarX also plays a negative role in controlling NarL activity, probably through dephosphorylation in the absence of nitrate.
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[https://www.uniprot.org/uniprot/NARX_ECOLI NARX_ECOLI] Acts as a sensor for nitrate/nitrite and transduces signal of nitrate availability to the NarL protein and of both nitrate/nitrite to the NarP protein. NarX probably activates NarL and NarP by phosphorylation in the presence of nitrate. NarX also plays a negative role in controlling NarL activity, probably through dephosphorylation in the absence of nitrate.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Ecoli]]
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[[Category: Escherichia coli K-12]]
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[[Category: Histidine kinase]]
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[[Category: Large Structures]]
[[Category: Large Structures]]
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[[Category: Cheung, J]]
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[[Category: Cheung J]]
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[[Category: Hendrickson, W A]]
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[[Category: Hendrickson WA]]
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[[Category: Cell inner membrane]]
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[[Category: Cell membrane]]
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[[Category: Four-helix bundle]]
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[[Category: Kinase]]
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[[Category: Membrane]]
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[[Category: Nitrate assimilation]]
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[[Category: Nitrate sensor]]
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[[Category: Phosphoprotein]]
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[[Category: Selenomethionyl mad]]
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[[Category: Sensor domain]]
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[[Category: Sensor protein]]
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[[Category: Signal transduction]]
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[[Category: Transferase]]
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[[Category: Transmembrane]]
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[[Category: Two-component regulatory system]]
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Revision as of 00:27, 28 December 2023

Crystal Structure of the E. coli Histidine Kinase NarX Sensor Domain in Complex with Nitrate

PDB ID 3ezh

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