1xpr: Difference between revisions

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<StructureSection load='1xpr' size='340' side='right'caption='[[1xpr]], [[Resolution|resolution]] 3.15&Aring;' scene=''>
<StructureSection load='1xpr' size='340' side='right'caption='[[1xpr]], [[Resolution|resolution]] 3.15&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1xpr]] is a 12 chain structure with sequence from [https://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1XPR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1XPR FirstGlance]. <br>
<table><tr><td colspan='2'>[[1xpr]] is a 12 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=1XPR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1XPR FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AGS:PHOSPHOTHIOPHOSPHORIC+ACID-ADENYLATE+ESTER'>AGS</scene>, <scene name='pdbligand=FB:5A-FORMYLBICYCLOMYCIN'>FB</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></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]] 3.15&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1xpo|1xpo]], [[1xpu|1xpu]]</div></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AGS:PHOSPHOTHIOPHOSPHORIC+ACID-ADENYLATE+ESTER'>AGS</scene>, <scene name='pdbligand=FB:5A-FORMYLBICYCLOMYCIN'>FB</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></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=1xpr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1xpr OCA], [https://pdbe.org/1xpr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1xpr RCSB], [https://www.ebi.ac.uk/pdbsum/1xpr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1xpr ProSAT]</span></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=1xpr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1xpr OCA], [https://pdbe.org/1xpr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1xpr RCSB], [https://www.ebi.ac.uk/pdbsum/1xpr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1xpr ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/MEMA_METCA MEMA_METCA]] Responsible for the initial oxygenation of methane to methanol in methanotrophs. It also catalyzes the monohydroxylation of a variety of unactivated alkenes, alicyclic, aromatic and heterocyclic compounds.  
[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]
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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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=1xpr 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=1xpr ConSurf].
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<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Rho is a hexameric RNA/DNA helicase/translocase that terminates transcription of select genes in bacteria. The naturally occurring antibiotic, bicyclomycin (BCM), acts as a noncompetitive inhibitor of ATP turnover to disrupt this process. We have determined three independent X-ray crystal structures of Rho complexed with BCM and two semisynthetic derivatives, 5a-(3-formylphenylsulfanyl)-dihydrobicyclomycin (FPDB) and 5a-formylbicyclomycin (FB) to 3.15, 3.05, and 3.15 A resolution, respectively. The structures show that BCM and its derivatives are nonnucleotide inhibitors that interact with Rho at a pocket adjacent to the ATP and RNA binding sites in the C-terminal half of the protein. BCM association prevents ATP turnover by an unexpected mechanism, occluding the binding of the nucleophilic water molecule required for ATP hydrolysis. Our data explain why only certain elements of BCM have been amenable to modification and serve as a template for the design of new inhibitors.
Structural mechanism of inhibition of the Rho transcription termination factor by the antibiotic bicyclomycin.,Skordalakes E, Brogan AP, Park BS, Kohn H, Berger JM Structure. 2005 Jan;13(1):99-109. PMID:15642265<ref>PMID:15642265</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1xpr" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[Helicase 3D structures|Helicase 3D structures]]
*[[Helicase 3D structures|Helicase 3D structures]]
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Bacillus coli migula 1895]]
[[Category: Escherichia coli]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Berger, J M]]
[[Category: Berger JM]]
[[Category: Brogan, A P]]
[[Category: Brogan AP]]
[[Category: Kohn, H]]
[[Category: Kohn H]]
[[Category: Park, B S]]
[[Category: Park BS]]
[[Category: Skordalakes, E]]
[[Category: Skordalakes E]]
[[Category: 5a-formylbicyclomycin]]
[[Category: Atpgamma]]
[[Category: Fb]]
[[Category: Rho]]
[[Category: Transcription-rna complex]]

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