View source for 1nza


==Divalent cation tolerance protein (Cut A1) from thermus thermophilus HB8==
<StructureSection load='1nza' size='340' side='right'caption='[[1nza]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1nza]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NZA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NZA 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]] 1.7&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=1nza FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nza OCA], [https://pdbe.org/1nza PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1nza RCSB], [https://www.ebi.ac.uk/pdbsum/1nza PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1nza ProSAT], [https://www.topsan.org/Proteins/RSGI/1nza TOPSAN]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CUTA_THET8 CUTA_THET8] Involved in resistance toward heavy metals (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/nz/1nza_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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=1nza ConSurf].
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== Publication Abstract from PubMed ==
CutA1 (copper tolerance A1) is a widespread cytoplasmic protein found in archaea, bacteria, plants and animals, including humans. In Escherichia coli it is implicated in divalent metal tolerance, while the mammalian CutA1 homologue has been proposed to mediate brain enzyme acetylcholinesterase activity and copper homeostasis. The X-ray structures of CutA1 from the thermophilic bacterium Thermus thermophilus (TtCutA1) with and without bound Na(+) at 1.7 and 1.9 A resolution, respectively, and from the hyperthermophilic archaeon Pyrococcus horikoshii (PhCutA1) in complex with Na(+) at 1.8 A resolution have been determined. Both are short and rigid proteins of about 12 kDa that form intertwined compact trimers in the crystal and solution. The main difference in the structures is a wide-type beta-bulge on top of the TtCutA1 trimer. It affords a mechanism for lodging a single-residue insertion in the middle of beta2 while preserving the interprotomer main-chain hydrogen-bonding network. The liganded forms of the proteins provide new structural information about the metal-binding sites and CutA1 assembly. The Na(+)-TtCutA1 structure unveils a dodecameric assembly with metal ions in the trimer-trimer interfaces and the lateral clefts of the trimer. For Na(+)-PhCutA1, the metal ion associated with six waters in an octahedral geometry. The structures suggest that CutA1 may contribute to regulating intracellular metal homeostasis through various binding modes.

The structures of the CutA1 proteins from Thermus thermophilus and Pyrococcus horikoshii: characterization of metal-binding sites and metal-induced assembly.,Bagautdinov B Acta Crystallogr F Struct Biol Commun. 2014 Apr;70(Pt 4):404-13. doi:, 10.1107/S2053230X14003422. Epub 2014 Mar 25. PMID:24699729<ref>PMID:24699729</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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==See Also==
*[[CutA1 3D structures|CutA1 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Thermus thermophilus]]
[[Category: Bagautdinov B]]
[[Category: Miyano M]]
[[Category: Tahirov TH]]