2or1: Difference between revisions

From Proteopedia
Jump to navigation Jump to search
← Older edit
No edit summary
No edit summary
 
(14 intermediate revisions by the same user not shown)
Line 1: Line 1:
[[Image:2or1.jpg|left|200px]]<br /><applet load="2or1" size="350" color="white" frame="true" align="right" spinBox="true"
caption="2or1, resolution 2.500&Aring;" />
'''RECOGNITION OF A DNA OPERATOR BY THE REPRESSOR OF PHAGE 434. A VIEW AT HIGH RESOLUTION'''<br />


==Overview==
==RECOGNITION OF A DNA OPERATOR BY THE REPRESSOR OF PHAGE 434. A VIEW AT HIGH RESOLUTION==
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.
<StructureSection load='2or1' size='340' side='right'caption='[[2or1]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
 
== Structural highlights ==
==About this Structure==
<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>
2OR1 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Bacteriophage_434 Bacteriophage 434]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OR1 OCA].  
</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>
==Reference==
</table>
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:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=3187531 3187531]
== Function ==
[[Category: Bacteriophage 434]]
[https://www.uniprot.org/uniprot/RPC1_BP434 RPC1_BP434] Binds to two sets of three contiguous operator sites in the phage genome.
[[Category: Single protein]]
== Evolutionary Conservation ==
[[Category: Aggarwal, A K.]]
[[Image:Consurf_key_small.gif|200px|right]]
[[Category: Drottar, M.]]
Check<jmol>
[[Category: Harrison, S C.]]
  <jmolCheckbox>
[[Category: Ptashne, M.]]
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/or/2or1_consurf.spt"</scriptWhenChecked>
[[Category: Rodgers, D W.]]
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
[[Category: double helix]]
    <text>to colour the structure by Evolutionary Conservation</text>
[[Category: protein-dna complex]]
  </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=2or1 ConSurf].
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 18:21:36 2008''
<div style="clear:both"></div>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Phage 434]]
[[Category: Aggarwal AK]]
[[Category: Drottar M]]
[[Category: Harrison SC]]
[[Category: Ptashne M]]
[[Category: Rodgers DW]]

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
Retrieved from "https://proteopedia.openfox.io/wiki/index.php?title=2or1&oldid=4062172"