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==RECOGNITION OF A DNA OPERATOR BY THE REPRESSOR OF PHAGE 434. A VIEW AT HIGH RESOLUTION==
==RECOGNITION OF A DNA OPERATOR BY THE REPRESSOR OF PHAGE 434. A VIEW AT HIGH RESOLUTION==
<StructureSection load='2or1' size='340' side='right' caption='[[2or1]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
<StructureSection load='2or1' size='340' side='right'caption='[[2or1]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[2or1]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Bp434 Bp434]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OR1 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2OR1 FirstGlance]. <br>
<table><tr><td colspan='2'>[[2or1]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Phage_434 Phage 434]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OR1 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2OR1 FirstGlance]. <br>
</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2or1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2or1 OCA], [http://pdbe.org/2or1 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2or1 RCSB], [http://www.ebi.ac.uk/pdbsum/2or1 PDBsum]</span></td></tr>
</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>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2or1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2or1 OCA], [https://pdbe.org/2or1 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2or1 RCSB], [https://www.ebi.ac.uk/pdbsum/2or1 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2or1 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/RPC1_BP434 RPC1_BP434]] Binds to two sets of three contiguous operator sites in the phage genome.  
[https://www.uniprot.org/uniprot/RPC1_BP434 RPC1_BP434] Binds to two sets of three contiguous operator sites in the phage genome.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
   <jmolCheckbox>
   <jmolCheckbox>
     <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/or/2or1_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/or/2or1_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
   </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/chain_selection.php?pdb_ID=2ata ConSurf].
</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=2or1 ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The repressors of temperate bacteriophages such as 434 and lambda control transcription by binding to a set of DNA operator sites. The different affinity of repressor for each of these sites ensures efficient regulation. High-resolution x-ray crystallography was used to study the DNA-binding domain of phage 434 repressor in complex with a synthetic DNA operator. The structure shows recognition of the operator by direct interactions with base pairs in the major groove, combined with the sequence-dependent ability of DNA to adopt the required conformation on binding repressor. In particular, a network of three-centered bifurcated hydrogen bonds among base pairs in the operator helps explain why 434 repressor prefers certain sites over others. These bonds, which stabilize the conformation of the bound DNA, can form only with certain sequences.
Recognition of a DNA operator by the repressor of phage 434: a view at high resolution.,Aggarwal AK, Rodgers DW, Drottar M, Ptashne M, Harrison SC Science. 1988 Nov 11;242(4880):899-907. PMID:3187531<ref>PMID:3187531</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2or1" style="background-color:#fffaf0;"></div>
==See Also==
*[[Bacteriophage repressor|Bacteriophage repressor]]
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Bp434]]
[[Category: Large Structures]]
[[Category: Aggarwal, A K]]
[[Category: Phage 434]]
[[Category: Drottar, M]]
[[Category: Aggarwal AK]]
[[Category: Harrison, S C]]
[[Category: Drottar M]]
[[Category: Ptashne, M]]
[[Category: Harrison SC]]
[[Category: Rodgers, D W]]
[[Category: Ptashne M]]
[[Category: Double helix]]
[[Category: Rodgers DW]]
[[Category: Gene regulation-dna complex]]
[[Category: Protein-dna complex]]

Latest revision as of 12:05, 21 February 2024

RECOGNITION OF A DNA OPERATOR BY THE REPRESSOR OF PHAGE 434. A VIEW AT HIGH RESOLUTIONRECOGNITION OF A DNA OPERATOR BY THE REPRESSOR OF PHAGE 434. A VIEW AT HIGH RESOLUTION

Structural highlights

2or1 is a 4 chain structure with sequence from Phage 434. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.5Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

RPC1_BP434 Binds to two sets of three contiguous operator sites in the phage genome.

Evolutionary Conservation

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

2or1, resolution 2.50Å

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA
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