1iw7
From Proteopedia
(Difference between revisions)
m (Protected "1iw7" [edit=sysop:move=sysop]) |
|||
| (7 intermediate revisions not shown.) | |||
| Line 1: | Line 1: | ||
| - | [[Image:1iw7.png|left|200px]] | ||
| - | + | ==Crystal structure of the RNA polymerase holoenzyme from Thermus thermophilus at 2.6A resolution== | |
| + | <StructureSection load='1iw7' size='340' side='right'caption='[[1iw7]], [[Resolution|resolution]] 2.60Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[1iw7]] is a 12 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. The December 2003 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Catabolite Activator Protein'' by David S. Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2003_12 10.2210/rcsb_pdb/mom_2003_12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1IW7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1IW7 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]] 2.6Å</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=PB:LEAD+(II)+ION'>PB</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=1iw7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1iw7 OCA], [https://pdbe.org/1iw7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1iw7 RCSB], [https://www.ebi.ac.uk/pdbsum/1iw7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1iw7 ProSAT], [https://www.topsan.org/Proteins/RSGI/1iw7 TOPSAN]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/RPOA_THETH RPOA_THETH] DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. | ||
| + | == 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/iw/1iw7_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=1iw7 ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | In bacteria, the binding of a single protein, the initiation factor sigma, to a multi-subunit RNA polymerase core enzyme results in the formation of a holoenzyme, the active form of RNA polymerase essential for transcription initiation. Here we report the crystal structure of a bacterial RNA polymerase holoenzyme from Thermus thermophilus at 2.6 A resolution. In the structure, two amino-terminal domains of the sigma subunit form a V-shaped structure near the opening of the upstream DNA-binding channel of the active site cleft. The carboxy-terminal domain of sigma is near the outlet of the RNA-exit channel, about 57 A from the N-terminal domains. The extended linker domain forms a hairpin protruding into the active site cleft, then stretching through the RNA-exit channel to connect the N- and C-terminal domains. The holoenzyme structure provides insight into the structural organization of transcription intermediate complexes and into the mechanism of transcription initiation. | ||
| - | + | Crystal structure of a bacterial RNA polymerase holoenzyme at 2.6 A resolution.,Vassylyev DG, Sekine S, Laptenko O, Lee J, Vassylyeva MN, Borukhov S, Yokoyama S Nature. 2002 Jun 13;417(6890):712-9. Epub 2002 May 8. PMID:12000971<ref>PMID:12000971</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | <div class="pdbe-citations 1iw7" style="background-color:#fffaf0;"></div> | |
| - | + | ||
==See Also== | ==See Also== | ||
| - | *[[RNA polymerase|RNA polymerase]] | + | *[[RNA polymerase 3D structures|RNA polymerase 3D structures]] |
| - | + | == References == | |
| - | == | + | <references/> |
| - | < | + | __TOC__ |
| + | </StructureSection> | ||
[[Category: Catabolite Activator Protein]] | [[Category: Catabolite Activator Protein]] | ||
| - | [[Category: | + | [[Category: Large Structures]] |
[[Category: RCSB PDB Molecule of the Month]] | [[Category: RCSB PDB Molecule of the Month]] | ||
[[Category: Thermus thermophilus]] | [[Category: Thermus thermophilus]] | ||
| - | [[Category: RSGI, RIKEN Structural Genomics/Proteomics Initiative.]] | ||
| - | [[Category: Riken structural genomics/proteomics initiative]] | ||
| - | [[Category: Rna polymerase holoenzyme]] | ||
| - | [[Category: Rsgi]] | ||
| - | [[Category: Structural genomic]] | ||
| - | [[Category: Transferase]] | ||
Current revision
Crystal structure of the RNA polymerase holoenzyme from Thermus thermophilus at 2.6A resolution
| |||||||||||
