1a8v

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(New page: 200px<br /><applet load="1a8v" size="450" color="white" frame="true" align="right" spinBox="true" caption="1a8v, resolution 2.0&Aring;" /> '''STRUCTURE OF THE RNA-...)
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[[Image:1a8v.jpg|left|200px]]<br /><applet load="1a8v" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1a8v, resolution 2.0&Aring;" />
 
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'''STRUCTURE OF THE RNA-BINDING DOMAIN OF THE RHO TRANSCRIPTION TERMINATOR'''<br />
 
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==Overview==
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==STRUCTURE OF THE RNA-BINDING DOMAIN OF THE RHO TRANSCRIPTION TERMINATOR==
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The E. coli Rho protein disengages newly transcribed RNA from its DNA, template, helping terminate certain transcripts. We have determined the, X-ray crystal structure of the RNA-binding domain of Rho complexed to an, RNA ligand. Filters that screen both ligand size and chemical, functionality line the primary nucleic acid-binding site, imparting, sequence specificity to a generic single-stranded nucleic acid-binding, fold and explaining the preference of Rho for cytosine-rich RNA. The, crystal packing reveals two Rho domain protomers bound to a single RNA, with a single base spacer, suggesting that the strong RNA-binding sites of, Rho may arise from pairing of RNA-binding modules. Dimerization of, symmetric subunits on an asymmetric ligand is developed as a model for, allosteric control in the action of the intact Rho hexamer.
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<StructureSection load='1a8v' size='340' side='right'caption='[[1a8v]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1a8v]] 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=1A8V OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1A8V FirstGlance]. <br>
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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&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CU:COPPER+(II)+ION'>CU</scene></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=1a8v FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1a8v OCA], [https://pdbe.org/1a8v PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1a8v RCSB], [https://www.ebi.ac.uk/pdbsum/1a8v PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1a8v ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/RHO_ECOLI RHO_ECOLI] Facilitates transcription termination by a mechanism that involves rho binding to the nascent RNA, activation of rho's RNA-dependent ATPase activity, and release of the mRNA from the DNA template. RNA-dependent NTPAse which utilizes all four ribonucleoside triphosphates as substrates.[HAMAP-Rule:MF_01884]
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/a8/1a8v_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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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=1a8v ConSurf].
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<div style="clear:both"></div>
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==About this Structure==
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==See Also==
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1A8V is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli] with CU as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1A8V OCA].
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*[[Helicase 3D structures|Helicase 3D structures]]
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__TOC__
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==Reference==
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</StructureSection>
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The structural basis for terminator recognition by the Rho transcription termination factor., Bogden CE, Fass D, Bergman N, Nichols MD, Berger JM, Mol Cell. 1999 Apr;3(4):487-93. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=10230401 10230401]
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[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Berger, J.M.]]
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[[Category: Berger JM]]
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[[Category: Bogden, C.]]
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[[Category: Bogden C]]
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[[Category: Fass, D.]]
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[[Category: Fass D]]
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[[Category: CU]]
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[[Category: rho protein]]
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[[Category: rna-binding]]
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[[Category: terminator]]
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[[Category: transcription termination]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Nov 20 10:41:13 2007''
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Current revision

STRUCTURE OF THE RNA-BINDING DOMAIN OF THE RHO TRANSCRIPTION TERMINATOR

PDB ID 1a8v

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