3cro

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[[Image:3cro.jpg|left|200px]]
 
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==THE PHAGE 434 CRO/OR1 COMPLEX AT 2.5 ANGSTROMS RESOLUTION==
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The line below this paragraph, containing "STRUCTURE_3cro", creates the "Structure Box" on the page.
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<StructureSection load='3cro' size='340' side='right'caption='[[3cro]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[3cro]] 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=3CRO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3CRO FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</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>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3cro FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3cro OCA], [https://pdbe.org/3cro PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3cro RCSB], [https://www.ebi.ac.uk/pdbsum/3cro PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3cro ProSAT]</span></td></tr>
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{{STRUCTURE_3cro| PDB=3cro | SCENE= }}
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</table>
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== Function ==
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'''THE PHAGE 434 CRO/OR1 COMPLEX AT 2.5 ANGSTROMS RESOLUTION'''
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[https://www.uniprot.org/uniprot/RCRO_BP434 RCRO_BP434] Cro represses genes normally expressed in early phage development and is necessary for the late stage of lytic growth. It does this by binding to the OL and OR operators regions normally used by the repressor protein for lysogenic maintenance.
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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==Overview==
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Check<jmol>
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The crystal structure of phage 434 Cro protein in complex with a 20 base-pair DNA fragment has been determined to 2.5 A resolution. The DNA fragment contains the sequence of the OR1 operator site. The structure shows a bent conformation for the DNA, straighter at the center and more bent at the ends. The central base-pairs adopt conformations with significant deviations from coplanarity. The two molecules interact extensively along their common interface, both through hydrogen bonds and van der Waals interactions. The significance of these interactions for operator binding and recognition is discussed.
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/cr/3cro_consurf.spt"</scriptWhenChecked>
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==About this Structure==
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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3CRO is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Phage_434 Phage 434]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3CRO OCA].
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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==Reference==
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</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=3cro ConSurf].
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The phage 434 Cro/OR1 complex at 2.5 A resolution., Mondragon A, Harrison SC, J Mol Biol. 1991 May 20;219(2):321-34. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/2038059 2038059]
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<div style="clear:both"></div>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
[[Category: Phage 434]]
[[Category: Phage 434]]
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[[Category: Single protein]]
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[[Category: Harrison SC]]
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[[Category: Harrison, S C.]]
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[[Category: Mondragon A]]
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[[Category: Mondragon, A.]]
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[[Category: Double helix]]
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[[Category: Protein-dna complex]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 21:58:16 2008''
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Current revision

THE PHAGE 434 CRO/OR1 COMPLEX AT 2.5 ANGSTROMS RESOLUTION

PDB ID 3cro

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