1q07: Difference between revisions

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[[Image:1q07.gif|left|200px]]


{{Structure
==Crystal structure of the Au(I) form of E. coli CueR, a copper efflux regulator==
|PDB= 1q07 |SIZE=350|CAPTION= <scene name='initialview01'>1q07</scene>, resolution 2.50&Aring;
<StructureSection load='1q07' size='340' side='right'caption='[[1q07]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
|SITE=  
== Structural highlights ==
|LIGAND= <scene name='pdbligand=AU:GOLD+ION'>AU</scene>
<table><tr><td colspan='2'>[[1q07]] is a 2 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=1Q07 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1Q07 FirstGlance]. <br>
|ACTIVITY=
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5&#8491;</td></tr>
|GENE= CUER ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli])
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AU:GOLD+ION'>AU</scene></td></tr>
|DOMAIN=
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1q07 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1q07 OCA], [https://pdbe.org/1q07 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1q07 RCSB], [https://www.ebi.ac.uk/pdbsum/1q07 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1q07 ProSAT]</span></td></tr>
|RELATEDENTRY=[[1q05|1Q05]], [[1q06|1Q06]]
</table>
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1q07 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1q07 OCA], [http://www.ebi.ac.uk/pdbsum/1q07 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1q07 RCSB]</span>
== Function ==
}}
[https://www.uniprot.org/uniprot/CUER_ECOLI CUER_ECOLI] Regulates the transcription of the copA and cueO genes. It detects cytoplasmic copper stress and activates transcription in response to increasing copper concentrations.<ref>PMID:10915804</ref> <ref>PMID:11399769</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/q0/1q07_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=1q07 ConSurf].
<div style="clear:both"></div>


'''Crystal structure of the Au(I) form of E. coli CueR, a copper efflux regulator'''
==See Also==
 
*[[Transcriptional activator 3D structures|Transcriptional activator 3D structures]]
 
== References ==
==Overview==
<references/>
The earliest of a series of copper efflux genes in Escherichia coli are controlled by CueR, a member of the MerR family of transcriptional activators. Thermodynamic calibration of CueR reveals a zeptomolar (10(-21) molar) sensitivity to free Cu+, which is far less than one atom per cell. Atomic details of this extraordinary sensitivity and selectivity for +1transition-metal ions are revealed by comparing the crystal structures of CueR and a Zn2+-sensing homolog, ZntR. An unusual buried metal-receptor site in CueR restricts the metal to a linear, two-coordinate geometry and uses helix-dipole and hydrogen-bonding interactions to enhance metal binding. This binding mode is rare among metalloproteins but well suited for an ultrasensitive genetic switch.
__TOC__
 
</StructureSection>
==About this Structure==
1Q07 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Q07 OCA].
 
==Reference==
Molecular basis of metal-ion selectivity and zeptomolar sensitivity by CueR., Changela A, Chen K, Xue Y, Holschen J, Outten CE, O'Halloran TV, Mondragon A, Science. 2003 Sep 5;301(5638):1383-7. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12958362 12958362]
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Changela, A.]]
[[Category: Changela A]]
[[Category: Chen, K.]]
[[Category: Chen K]]
[[Category: Halloran, T V.O.]]
[[Category: Holschen J]]
[[Category: Holschen, J.]]
[[Category: Mondragon A]]
[[Category: Mondragon, A.]]
[[Category: O'Halloran TV]]
[[Category: Outten, C E.]]
[[Category: Outten CE]]
[[Category: Xue, Y.]]
[[Category: Xue Y]]
[[Category: copper efflux regulator]]
[[Category: merr family transcriptional regulator]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 23:07:07 2008''

Latest revision as of 11:11, 14 February 2024

Crystal structure of the Au(I) form of E. coli CueR, a copper efflux regulatorCrystal structure of the Au(I) form of E. coli CueR, a copper efflux regulator

Structural highlights

1q07 is a 2 chain structure with sequence from Escherichia coli. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.5Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

CUER_ECOLI Regulates the transcription of the copA and cueO genes. It detects cytoplasmic copper stress and activates transcription in response to increasing copper concentrations.[1] [2]

Evolutionary Conservation

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

See Also

References

  1. ↑ Outten FW, Outten CE, Hale J, O'Halloran TV. Transcriptional activation of an Escherichia coli copper efflux regulon by the chromosomal MerR homologue, cueR. J Biol Chem. 2000 Oct 6;275(40):31024-9. PMID:10915804 doi:http://dx.doi.org/10.1074/jbc.M006508200
  2. ↑ Outten FW, Huffman DL, Hale JA, O'Halloran TV. The independent cue and cus systems confer copper tolerance during aerobic and anaerobic growth in Escherichia coli. J Biol Chem. 2001 Aug 17;276(33):30670-7. Epub 2001 Jun 8. PMID:11399769 doi:http://dx.doi.org/10.1074/jbc.M104122200

1q07, resolution 2.50Å

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