View source for 5f6c


==The structure of E. coli RNase E catalytically inactive mutant with RNA bound==
<StructureSection load='5f6c' size='340' side='right'caption='[[5f6c]], [[Resolution|resolution]] 3.00&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5f6c]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli] and [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5F6C OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5F6C 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]] 3.002&#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=5f6c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5f6c OCA], [https://pdbe.org/5f6c PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5f6c RCSB], [https://www.ebi.ac.uk/pdbsum/5f6c PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5f6c ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/RNE_ECOLI RNE_ECOLI] Matures 5S rRNA from its precursors from all the rRNA genes. It also cleaves RNA I, a molecule that controls the replication of colE1 plasmid DNA. It is the major endoribonuclease participating in mRNA turnover in E.coli. It initiates the decay of RNAs by cutting them internally near their 5'-end. It is able to remove poly(A) tails by an endonucleolytic process.
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== Publication Abstract from PubMed ==
The endoribonuclease RNase E is a principal factor in RNA turnover and processing that helps to exercise fine control of gene expression in bacteria. While its catalytic activity can be strongly influenced by the chemical identity of the 5' end of RNA substrates, the enzyme can also cleave numerous substrates irrespective of the chemistry of their 5' ends through a mechanism that has remained largely unexplained. We report structural and functional data illuminating details of both operational modes. Our crystal structure of RNase E in complex with the sRNA RprA reveals a duplex recognition site that saddles an inter-protomer surface to help present substrates for cleavage. Our data also reveal an autoinhibitory pocket that modulates the overall activity of the ribonuclease. Taking these findings together, we propose how RNase E uses versatile modes of RNA recognition to achieve optimal activity and specificity.

Substrate Recognition and Autoinhibition in the Central Ribonuclease RNase E.,Bandyra KJ, Wandzik JM, Luisi BF Mol Cell. 2018 Sep 20. pii: S1097-2765(18)30699-3. doi:, 10.1016/j.molcel.2018.08.039. PMID:30270108<ref>PMID:30270108</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 5f6c" style="background-color:#fffaf0;"></div>

==See Also==
*[[Ribonuclease 3D structures|Ribonuclease 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Escherichia coli]]
[[Category: Escherichia coli K-12]]
[[Category: Large Structures]]
[[Category: Bandyra KJ]]
[[Category: Luisi BF]]