7c79: Difference between revisions

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==Cryo-EM structure of yeast Ribonuclease MRP==
==Cryo-EM structure of yeast Ribonuclease MRP==
<StructureSection load='7c79' size='340' side='right'caption='[[7c79]]' scene=''>
<StructureSection load='7c79' size='340' side='right'caption='[[7c79]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7C79 OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=7C79 FirstGlance]. <br>
<table><tr><td colspan='2'>[[7c79]] is a 12 chain structure with sequence from [http://en.wikipedia.org/wiki/Baker's_yeast Baker's yeast] and [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae_s288c Saccharomyces cerevisiae s288c]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7C79 OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=7C79 FirstGlance]. <br>
</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=7c79 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7c79 OCA], [http://pdbe.org/7c79 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=7c79 RCSB], [http://www.ebi.ac.uk/pdbsum/7c79 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=7c79 ProSAT]</span></td></tr>
</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='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Ribonuclease_P Ribonuclease P], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.26.5 3.1.26.5] </span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=7c79 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7c79 OCA], [http://pdbe.org/7c79 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=7c79 RCSB], [http://www.ebi.ac.uk/pdbsum/7c79 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=7c79 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
[[http://www.uniprot.org/uniprot/POP6_YEAST POP6_YEAST]] Component of ribonuclease P, a protein complex that generates mature tRNA molecules by cleaving their 5'-ends. Also a component of RNase MRP, which cleaves pre-rRNA sequences.<ref>PMID:9620854</ref>  [[http://www.uniprot.org/uniprot/RMP1_YEAST RMP1_YEAST]] Functions as part of ribonuclease MRP (RNase MRP), which is involved in rRNA processing in mitochondria.<ref>PMID:15637077</ref>  [[http://www.uniprot.org/uniprot/POP3_YEAST POP3_YEAST]] Required for processing of 5.8S rRNA (short form) at site A3 and for 5'- and 3'-processing of pre-tRNA.<ref>PMID:9029160</ref> <ref>PMID:9620854</ref>  [[http://www.uniprot.org/uniprot/POP7_YEAST POP7_YEAST]] Component of ribonuclease P, a protein complex that generates mature tRNA molecules by cleaving their 5'-ends. Also a component of RNase MRP, which cleaves pre-rRNA sequences.<ref>PMID:9618478</ref> <ref>PMID:9620854</ref>  [[http://www.uniprot.org/uniprot/RPP1_YEAST RPP1_YEAST]] Component of ribonuclease P, a protein complex that generates mature tRNA molecules by cleaving their 5'-ends. Also a component of RNase MRP, which cleaves pre-rRNA sequences.<ref>PMID:9308968</ref> <ref>PMID:9620854</ref>  [[http://www.uniprot.org/uniprot/POP1_YEAST POP1_YEAST]] Required for processing of 5.8S rRNA (short form) at site A3 and for 5' and 3' processing of pre-tRNA.<ref>PMID:7926742</ref> <ref>PMID:9620854</ref>  [[http://www.uniprot.org/uniprot/POP8_YEAST POP8_YEAST]] Component of ribonuclease P, a protein complex that generates mature tRNA molecules by cleaving their 5'-ends. Also a component of RNase MRP, which cleaves pre-rRNA sequences.<ref>PMID:9620854</ref>  [[http://www.uniprot.org/uniprot/POP4_YEAST POP4_YEAST]] Required for 5.8S rRNA and tRNA processing; associated with RNase MRP and RNase P.<ref>PMID:9085845</ref> <ref>PMID:9620854</ref>  [[http://www.uniprot.org/uniprot/RMRP_YEAST RMRP_YEAST]] Essential component of the MRP ribonucleoprotein endoribonuclease that cleaves mitochondrial primer RNA sequences.<ref>PMID:7958920</ref>  [[http://www.uniprot.org/uniprot/POP5_YEAST POP5_YEAST]] Component of ribonuclease P, a protein complex that generates mature tRNA molecules by cleaving their 5'-ends. Also a component of RNase MRP, which cleaves pre-rRNA sequences.<ref>PMID:9620854</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Ribonuclease (RNase) MRP is a conserved eukaryotic ribonucleoprotein complex that plays essential roles in pre-ribosomal RNA (pre-rRNA) processing and cell cycle regulation. In contrast to RNase P, which selectively cleaves tRNA-like substrates, it has remained a mystery how RNase MRP recognizes its diverse substrates. To address this question, we determined cryo-EM structures of Saccharomyces cerevisiae RNase MRP alone and in complex with a fragment of pre-rRNA. These structures combined with biochemical studies reveal that co-evolution of both protein and RNA subunits has transformed RNase MRP into a distinct ribonuclease that processes single-stranded RNAs by recognizing a short, loosely-defined consensus sequence. This broad substrate specificity suggests that RNase MRP may have myriad yet unrecognized substrates that could play important roles in various cellular contexts.
Structural insight into precursor ribosomal RNA processing by ribonuclease MRP.,Lan P, Zhou B, Tan M, Li S, Cao M, Wu J, Lei M Science. 2020 Jun 25. pii: science.abc0149. doi: 10.1126/science.abc0149. PMID:32586950<ref>PMID:32586950</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7c79" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Baker's yeast]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Lan P]]
[[Category: Ribonuclease P]]
[[Category: Lei M]]
[[Category: Saccharomyces cerevisiae s288c]]
[[Category: Wu J]]
[[Category: Lan, P]]
[[Category: Lei, M]]
[[Category: Wu, J]]
[[Category: Ribonuclease mrp]]
[[Category: Rna binding protein]]
[[Category: Rna-protein complex]]

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