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==Crystal Structure of Nuclease Domain of Ribonuclase III from Mycobacterium Tuberculosis==
==Crystal Structure of Nuclease Domain of Ribonuclase III from Mycobacterium Tuberculosis==
<StructureSection load='2a11' size='340' side='right' caption='[[2a11]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
<StructureSection load='2a11' size='340' side='right'caption='[[2a11]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[2a11]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_tuberculosis"_(zopf_1883)_klein_1884 "bacillus tuberculosis" (zopf 1883) klein 1884]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2A11 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2A11 FirstGlance]. <br>
<table><tr><td colspan='2'>[[2a11]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Mycobacterium_tuberculosis Mycobacterium tuberculosis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2A11 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2A11 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</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]] 2.1&#8491;</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">rnc ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1773 "Bacillus tuberculosis" (Zopf 1883) Klein 1884])</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Ribonuclease_III Ribonuclease III], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.26.3 3.1.26.3] </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=2a11 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2a11 OCA], [https://pdbe.org/2a11 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2a11 RCSB], [https://www.ebi.ac.uk/pdbsum/2a11 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2a11 ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2a11 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2a11 OCA], [http://pdbe.org/2a11 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2a11 RCSB], [http://www.ebi.ac.uk/pdbsum/2a11 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2a11 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/RNC_MYCTU RNC_MYCTU]] Digests double-stranded RNA. Involved in the processing of primary rRNA transcript to yield the immediate precursors to the large and small rRNAs (23S and 16S). Processes some mRNAs, and tRNAs when they are encoded in the rRNA operon. Processes pre-crRNA and tracrRNA of type II CRISPR loci if present in the organism (By similarity).[HAMAP-Rule:MF_00104]  
[https://www.uniprot.org/uniprot/RNC_MYCTU RNC_MYCTU] Digests double-stranded RNA. Involved in the processing of primary rRNA transcript to yield the immediate precursors to the large and small rRNAs (23S and 16S). Processes some mRNAs, and tRNAs when they are encoded in the rRNA operon. Processes pre-crRNA and tracrRNA of type II CRISPR loci if present in the organism (By similarity).[HAMAP-Rule:MF_00104]
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
   <jmolCheckbox>
   <jmolCheckbox>
     <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/a1/2a11_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/a1/2a11_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
     <text>to colour the structure by Evolutionary Conservation</text>
Line 21: Line 20:
</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=2a11 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=2a11 ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
RNase III enzymes are a highly conserved family of proteins that specifically cleave double-stranded (ds)RNA. These proteins are involved in a diverse group of functions, including ribosomal RNA processing, mRNA maturation and decay, snRNA and snoRNA processing, and RNA interference. Here we report the crystal structure of the nuclease domain of RNase III from the pathogen Mycobacterium tuberculosis. Although globally similar to other RNase III folds, this structure has some features not observed in previously reported models. These include the presence of an additional metal ion near the catalytic site, as well as conserved secondary structural elements that are proposed to have functional roles in the recognition of dsRNAs.
Structure of the nuclease domain of ribonuclease III from M. tuberculosis at 2.1 A.,Akey DL, Berger JM Protein Sci. 2005 Oct;14(10):2744-50. Epub 2005 Sep 9. PMID:16155207<ref>PMID:16155207</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2a11" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[Ribonuclease|Ribonuclease]]
*[[Ribonuclease 3D structures|Ribonuclease 3D structures]]
*[[Temp|Temp]]
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Ribonuclease III]]
[[Category: Large Structures]]
[[Category: Akey, D L]]
[[Category: Mycobacterium tuberculosis]]
[[Category: Berger, J M]]
[[Category: Akey DL]]
[[Category: XMTB, Mycobacterium Tuberculosis Structural Proteomics Project]]
[[Category: Berger JM]]
[[Category: Hydrolase]]
[[Category: Nuclease domain]]
[[Category: PSI, Protein structure initiative]]
[[Category: Ribonuclease]]
[[Category: Rnase iii]]
[[Category: Structural genomic]]
[[Category: Transcription]]
[[Category: Translation]]

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