1hqm: Difference between revisions

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-[[Image:1hqm.jpg|left|200px]]<br /><applet load="1hqm" size="350" color="white" frame="true" align="right" spinBox="true"
-caption="1hqm, resolution 3.3&Aring;" />
-'''CRYSTAL STRUCTURE OF THERMUS AQUATICUS CORE RNA POLYMERASE-INCLUDES COMPLETE STRUCTURE WITH SIDE-CHAINS (EXCEPT FOR DISORDERED REGIONS)-FURTHER REFINED FROM ORIGINAL DEPOSITION-CONTAINS ADDITIONAL SEQUENCE INFORMATION'''<br />
-==Overview==
+==CRYSTAL STRUCTURE OF THERMUS AQUATICUS CORE RNA POLYMERASE-INCLUDES COMPLETE STRUCTURE WITH SIDE-CHAINS (EXCEPT FOR DISORDERED REGIONS)-FURTHER REFINED FROM ORIGINAL DEPOSITION-CONTAINS ADDITIONAL SEQUENCE INFORMATION==
-Bacterial DNA-dependent RNA polymerase (RNAP) has subunit composition beta'betaalpha(I)alpha(II)omega. The role of omega has been unclear. We show that omega is homologous in sequence and structure to RPB6, an essential subunit shared in eukaryotic RNAP I, II, and III. In Escherichia coli, overproduction of omega suppresses the assembly defect caused by substitution of residue 1362 of the largest subunit of RNAP, beta'. In yeast, overproduction of RPB6 suppresses the assembly defect caused by the equivalent substitution in the largest subunit of RNAP II, RPB1. High-resolution structural analysis of the omega-beta' interface in bacterial RNAP, and comparison with the RPB6-RPB1 interface in yeast RNAP II, confirms the structural relationship and suggests a "latching" mechanism for the role of omega and RPB6 in promoting RNAP assembly.
+<StructureSection load='1hqm' size='340' side='right'caption='[[1hqm]], [[Resolution|resolution]] 3.30&Aring;' scene=''>
+== Structural highlights ==
+<table><tr><td colspan='2'>[[1hqm]] is a 5 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermus_aquaticus Thermus aquaticus]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1ddq 1ddq]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HQM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1HQM FirstGlance]. <br>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.3&#8491;</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=1hqm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1hqm OCA], [https://pdbe.org/1hqm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1hqm RCSB], [https://www.ebi.ac.uk/pdbsum/1hqm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1hqm ProSAT]</span></td></tr>
+</table>
+== Function ==
+[https://www.uniprot.org/uniprot/RPOA_THEAQ RPOA_THEAQ]
+== Evolutionary Conservation ==
+[[Image:Consurf_key_small.gif|200px|right]]
+Check<jmol>
+  <jmolCheckbox>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hq/1hqm_consurf.spt"</scriptWhenChecked>
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
+    <text>to colour the structure by Evolutionary Conservation</text>
+  </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=1hqm ConSurf].
+<div style="clear:both"></div>
-==About this Structure==
+==See Also==
-HQM is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Thermus_aquaticus Thermus aquaticus] with <scene name='pdbligand=MG:'>MG</scene> and <scene name='pdbligand=ZN:'>ZN</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. This structure supersedes the now removed PDB entry 1DDQ. Active as [http://en.wikipedia.org/wiki/DNA-directed_RNA_polymerase DNA-directed RNA polymerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.6 2.7.7.6] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HQM OCA].
+*[[RNA polymerase 3D structures|RNA polymerase 3D structures]]
+__TOC__
-==Reference==
+</StructureSection>
-Bacterial RNA polymerase subunit omega and eukaryotic RNA polymerase subunit RPB6 are sequence, structural, and functional homologs and promote RNA polymerase assembly., Minakhin L, Bhagat S, Brunning A, Campbell EA, Darst SA, Ebright RH, Severinov K, Proc Natl Acad Sci U S A. 2001 Jan 30;98(3):892-7. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=11158566 11158566]
+[[Category: Large Structures]]
-[[Category: DNA-directed RNA polymerase]]
-[[Category: Protein complex]]
 [[Category: Thermus aquaticus]]
-[[Category: Bhagat, S.]]
+[[Category: Bhagat S]]
-[[Category: Brunning, A.]]
+[[Category: Brunning A]]
-[[Category: Campbell, E A.]]
+[[Category: Campbell EA]]
-[[Category: Darst, S A.]]
+[[Category: Darst SA]]
-[[Category: Ebright, R H.]]
+[[Category: Ebright RH]]
-[[Category: Minakhin, L.]]
+[[Category: Minakhin L]]
-[[Category: Severinov, K.]]
+[[Category: Severinov K]]
-[[Category: MG]]
-[[Category: ZN]]
-[[Category: 3d-structure]]
-[[Category: dna-directed rna polymerase]]
-[[Category: transcription]]
-[[Category: transferase]]
-''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 13:03:58 2008''