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[[Image:1aoy.jpg|left|200px]]<br /><applet load="1aoy" size="350" color="white" frame="true" align="right" spinBox="true"
caption="1aoy" />
'''N-TERMINAL DOMAIN OF ESCHERICHIA COLI ARGININE REPRESSOR NMR, 23 STRUCTURES'''<br />


==Overview==
==N-TERMINAL DOMAIN OF ESCHERICHIA COLI ARGININE REPRESSOR NMR, 23 STRUCTURES==
The structure of the monomeric DNA-binding domain of the Escherichia coli arginine repressor, ArgR, determined by NMR spectroscopy, shows structural homology to the winged helix-turn-helix (wHTH) family, a motif found in a diverse class of proteins including both gene regulators and gene organizers from prokaryotes and eukaryotes. Biochemical data on DNA binding by intact ArgR are used as constraints to position the domain on its DNA target and to derive a model for the hexamer-DNA complex using the known structure of the L-arginine-binding domain. The structural independence of the wHTH fold may be important for multimeric DNA-binding proteins that contact extended DNA regions with imperfect match to consensus sequences, a feature of many wHTH-domain proteins.
<StructureSection load='1aoy' size='340' side='right'caption='[[1aoy]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1aoy]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1AOY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1AOY FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=1aoy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1aoy OCA], [https://pdbe.org/1aoy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1aoy RCSB], [https://www.ebi.ac.uk/pdbsum/1aoy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1aoy ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/ARGR_ECOLI ARGR_ECOLI] Negatively controls the expression of the four operons of arginine biosynthesis in addition to the carAB operon. Predominantly interacts with A/T residues in ARG boxes. It also binds to a specific site in cer locus. Thus it is essential for cer-mediated site-specific recombination in ColE1. It is necessary for monomerization of the plasmid ColE1.
== 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/ao/1aoy_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=1aoy ConSurf].
<div style="clear:both"></div>


==About this Structure==
==See Also==
1AOY is a [http://en.wikipedia.org/wiki/Single_protein 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=1AOY OCA].
*[[Arginine repressor 3D structures|Arginine repressor 3D structures]]
 
__TOC__
==Reference==
</StructureSection>
Solution structure of the DNA-binding domain and model for the complex of multifunctional hexameric arginine repressor with DNA., Sunnerhagen M, Nilges M, Otting G, Carey J, Nat Struct Biol. 1997 Oct;4(10):819-26. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=9334747 9334747]
[[Category: Escherichia coli K-12]]
[[Category: Escherichia coli]]
[[Category: Large Structures]]
[[Category: Single protein]]
[[Category: Nilges M]]
[[Category: Nilges, M.]]
[[Category: Otting G]]
[[Category: Otting, G.]]
[[Category: Sunnerhagen M]]
[[Category: Sunnerhagen, M.]]
[[Category: dna organization]]
[[Category: dna-binding protein]]
[[Category: expression regulation]]
[[Category: winged helix]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 11:46:48 2008''

Latest revision as of 18:26, 13 March 2024

N-TERMINAL DOMAIN OF ESCHERICHIA COLI ARGININE REPRESSOR NMR, 23 STRUCTURESN-TERMINAL DOMAIN OF ESCHERICHIA COLI ARGININE REPRESSOR NMR, 23 STRUCTURES

Structural highlights

1aoy is a 1 chain structure with sequence from Escherichia coli K-12. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:Solution NMR
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

ARGR_ECOLI Negatively controls the expression of the four operons of arginine biosynthesis in addition to the carAB operon. Predominantly interacts with A/T residues in ARG boxes. It also binds to a specific site in cer locus. Thus it is essential for cer-mediated site-specific recombination in ColE1. It is necessary for monomerization of the plasmid ColE1.

Evolutionary Conservation

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

See Also

Drag the structure with the mouse to rotate

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