1naq: Difference between revisions
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New page: left|200px<br /><applet load="1naq" size="450" color="white" frame="true" align="right" spinBox="true" caption="1naq, resolution 1.70Å" /> '''Crystal structure of... |
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== | ==Crystal structure of CUTA1 from E.coli at 1.7 A resolution== | ||
CutA1 are a protein family present in bacteria, plants, and animals, including humans. Escherichia coli CutA1 is involved in copper tolerance, whereas mammalian proteins are implicated in the anchoring of | <StructureSection load='1naq' size='340' side='right'caption='[[1naq]], [[Resolution|resolution]] 1.70Å' scene=''> | ||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1naq]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NAQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NAQ 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]] 1.7Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HG:MERCURY+(II)+ION'>HG</scene>, <scene name='pdbligand=MBO:MERCURIBENZOIC+ACID'>MBO</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=1naq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1naq OCA], [https://pdbe.org/1naq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1naq RCSB], [https://www.ebi.ac.uk/pdbsum/1naq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1naq ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/CUTA_ECOLI CUTA_ECOLI] Involved in resistance toward heavy metals.<ref>PMID:7623666</ref> | |||
== 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/na/1naq_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=1naq ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
CutA1 are a protein family present in bacteria, plants, and animals, including humans. Escherichia coli CutA1 is involved in copper tolerance, whereas mammalian proteins are implicated in the anchoring of acetylcholinesterase in neuronal cell membranes. The x-ray structures of CutA1 from E. coli and rat were determined. Both proteins are trimeric in the crystals and in solution through an inter-subunit beta-sheet formation. Each subunit consists of a ferredoxin-like (beta1alpha1beta2beta3alpha2beta4) fold with an additional strand (beta5), a C-terminal helix (alpha3), and an unusual extended beta-hairpin involving strands beta2 and beta3. The bacterial CutA1 is able to bind copper(II) in vitro through His2Cys coordination in a type II water-accessible site, whereas the rat protein precipitates in the presence of copper(II). The evolutionarily conserved trimeric assembly of CutA1 is reminiscent of the architecture of PII signal transduction proteins. This similarity suggests an intriguing role of CutA1 proteins in signal transduction through allosteric communications between subunits. | |||
The evolutionarily conserved trimeric structure of CutA1 proteins suggests a role in signal transduction.,Arnesano F, Banci L, Benvenuti M, Bertini I, Calderone V, Mangani S, Viezzoli MS J Biol Chem. 2003 Nov 14;278(46):45999-6006. Epub 2003 Aug 29. PMID:12949080<ref>PMID:12949080</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 1naq" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[CutA1 3D structures|CutA1 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Escherichia coli]] | [[Category: Escherichia coli]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Banci | [[Category: Banci L]] | ||
[[Category: Benvenuti | [[Category: Benvenuti M]] | ||
[[Category: Bertini | [[Category: Bertini I]] | ||
[[Category: Calderone | [[Category: Calderone V]] | ||
[[Category: Mangani | [[Category: Mangani S]] | ||
[[Category: Viezzoli MS]] | |||
[[Category: Viezzoli | |||
Latest revision as of 06:44, 13 August 2026
Crystal structure of CUTA1 from E.coli at 1.7 A resolution
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