3mdg

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{{Seed}}
 
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[[Image:3mdg.png|left|200px]]
 
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==Crystal Structure of the 25kDa Subunit of Human Cleavage factor Im in complex with RNA UUGUAU==
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The line below this paragraph, containing "STRUCTURE_3mdg", creates the "Structure Box" on the page.
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<StructureSection load='3mdg' size='340' side='right'caption='[[3mdg]], [[Resolution|resolution]] 2.22&Aring;' scene=''>
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[3mdg]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3MDG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3MDG FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.22&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene></td></tr>
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{{STRUCTURE_3mdg| PDB=3mdg | SCENE= }}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3mdg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3mdg OCA], [https://pdbe.org/3mdg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3mdg RCSB], [https://www.ebi.ac.uk/pdbsum/3mdg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3mdg ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CPSF5_HUMAN CPSF5_HUMAN] Component of the cleavage factor Im (CFIm) complex that plays a key role in pre-mRNA 3'-processing. Involved in association with CPSF6 or CPSF7 in pre-MRNA 3'-end poly(A) site cleavage and poly(A) addition. NUDT21/CPSF5 binds to cleavage and polyadenylation RNA substrates. The homodimer mediates simultaneous sequence-specific recognition of two 5'-UGUA-3' elements within the pre-mRNA. Binds to, but does not hydrolyze mono- and di-adenosine nucleotides. May have a role in mRNA export.<ref>PMID:9659921</ref> <ref>PMID:8626397</ref> <ref>PMID:14690600</ref> <ref>PMID:20695905</ref> <ref>PMID:20479262</ref> <ref>PMID:21295486</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/md/3mdg_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=3mdg ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Human Cleavage Factor Im (CFI(m)) is an essential component of the pre-mRNA 3' processing complex that functions in the regulation of poly(A) site selection through the recognition of UGUA sequences upstream of the poly(A) site. Although the highly conserved 25 kDa subunit (CFI(m)25) of the CFI(m) complex possesses a characteristic alpha/beta/alpha Nudix fold, CFI(m)25 has no detectable hydrolase activity. Here we report the crystal structures of the human CFI(m)25 homodimer in complex with UGUAAA and UUGUAU RNA sequences. CFI(m)25 is the first Nudix protein to be reported to bind RNA in a sequence-specific manner. The UGUA sequence contributes to binding specificity through an intramolecular G:A Watson-Crick/sugar-edge base interaction, an unusual pairing previously found to be involved in the binding specificity of the SAM-III riboswitch. The structures, together with mutational data, suggest a novel mechanism for the simultaneous sequence-specific recognition of two UGUA elements within the pre-mRNA. Furthermore, the mutually exclusive binding of RNA and the signaling molecule Ap(4)A (diadenosine tetraphosphate) by CFI(m)25 suggests a potential role for small molecules in the regulation of mRNA 3' processing.
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===Crystal Structure of the 25kDa Subunit of Human Cleavage factor Im in complex with RNA UUGUAU===
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Structural basis of UGUA recognition by the Nudix protein CFI(m)25 and implications for a regulatory role in mRNA 3' processing.,Yang Q, Gilmartin GM, Doublie S Proc Natl Acad Sci U S A. 2010 Jun 1;107(22):10062-7. Epub 2010 May 17. PMID:20479262<ref>PMID:20479262</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 3mdg" style="background-color:#fffaf0;"></div>
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(as it appears on PubMed at http://www.pubmed.gov), where 20479262 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_20479262}}
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__TOC__
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</StructureSection>
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==About this Structure==
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3MDG is a 3 chains structure with sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3MDG OCA].
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==Reference==
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<ref group="xtra">PMID:20479262</ref><references group="xtra"/>
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Doublie, S.]]
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[[Category: Large Structures]]
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[[Category: Gilmartin, G M.]]
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[[Category: Doublie S]]
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[[Category: Yang, Q.]]
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[[Category: Gilmartin GM]]
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[[Category: Cf im]]
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[[Category: Yang Q]]
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[[Category: Cleavage factor]]
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[[Category: Cpsf5]]
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[[Category: Mrna processing]]
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[[Category: Nudix protein]]
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[[Category: Protein-rna complex]]
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[[Category: Rna binding protein]]
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[[Category: Rna binding-rna complex]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jun 16 08:05:30 2010''
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Current revision

Crystal Structure of the 25kDa Subunit of Human Cleavage factor Im in complex with RNA UUGUAU

PDB ID 3mdg

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