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| | ==Crystal Structure of CFIm68 RRM/CFIm25/RNA complex== | | ==Crystal Structure of CFIm68 RRM/CFIm25/RNA complex== |
| - | <StructureSection load='3q2t' size='340' side='right' caption='[[3q2t]], [[Resolution|resolution]] 3.06Å' scene=''> | + | <StructureSection load='3q2t' size='340' side='right'caption='[[3q2t]], [[Resolution|resolution]] 3.06Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3q2t]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3Q2T OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3Q2T FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3q2t]] is a 6 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=3Q2T OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3Q2T FirstGlance]. <br> |
| - | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3q2s|3q2s]]</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]] 3.061Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CFIM25, CPSF25, CPSF5, NUDT21 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), CFIM68, CPSF6 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=3q2t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3q2t OCA], [https://pdbe.org/3q2t PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3q2t RCSB], [https://www.ebi.ac.uk/pdbsum/3q2t PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3q2t 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=3q2t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3q2t OCA], [http://pdbe.org/3q2t PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3q2t RCSB], [http://www.ebi.ac.uk/pdbsum/3q2t PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3q2t ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://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> [[http://www.uniprot.org/uniprot/CPSF6_HUMAN CPSF6_HUMAN]] Component of the cleavage factor Im complex (CFIm) that plays a key role in pre-mRNA 3'-processing. Involved in association with NUDT21/CPSF5 in pre-MRNA 3'-end poly(A) site cleavage and poly(A) addition. CPSF6 binds to cleavage and polyadenylation RNA substrates and promotes RNA looping.<ref>PMID:9659921</ref> <ref>PMID:8626397</ref> <ref>PMID:14690600</ref> <ref>PMID:20695905</ref> <ref>PMID:21295486</ref> | + | [https://www.uniprot.org/uniprot/CPSF6_HUMAN CPSF6_HUMAN] Component of the cleavage factor Im complex (CFIm) that plays a key role in pre-mRNA 3'-processing. Involved in association with NUDT21/CPSF5 in pre-MRNA 3'-end poly(A) site cleavage and poly(A) addition. CPSF6 binds to cleavage and polyadenylation RNA substrates and promotes RNA looping.<ref>PMID:9659921</ref> <ref>PMID:8626397</ref> <ref>PMID:14690600</ref> <ref>PMID:20695905</ref> <ref>PMID:21295486</ref> |
| - | <div style="background-color:#fffaf0;">
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| - | == Publication Abstract from PubMed ==
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| - | Cleavage factor I(m) (CFI(m)) is a highly conserved component of the eukaryotic mRNA 3' processing machinery that functions in sequence-specific poly(A) site recognition through the collaboration of a 25 kDa subunit containing a Nudix domain and a larger subunit of 59, 68, or 72 kDa containing an RNA recognition motif (RRM). Our previous work demonstrated that CFI(m)25 is both necessary and sufficient for sequence-specific binding of the poly(A) site upstream element UGUA. Here, we report the crystal structure of CFI(m)25 complexed with the RRM domain of CFI(m)68 and RNA. The CFI(m)25 dimer is clasped on opposite sides by two CFI(m)68 RRM domains. Each CFI(m)25 subunit binds one UGUA element specifically. Biochemical analysis indicates that the CFI(m)68 RRMs serve to enhance RNA binding and facilitate RNA looping. The intrinsic ability of CFI(m) to direct RNA looping may provide a mechanism for its function in the regulation of alternative poly(A) site selection.
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| - | Crystal Structure of a Human Cleavage Factor CFI(m)25/CFI(m)68/RNA Complex Provides an Insight into Poly(A) Site Recognition and RNA Looping.,Yang Q, Coseno M, Gilmartin GM, Doublie S Structure. 2011 Feb 2. PMID:21295486<ref>PMID:21295486</ref>
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| - | | + | |
| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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| - | </div>
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| - | <div class="pdbe-citations 3q2t" style="background-color:#fffaf0;"></div>
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| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Human]] | + | [[Category: Homo sapiens]] |
| - | [[Category: Coseno, M]] | + | [[Category: Large Structures]] |
| - | [[Category: Doublie, S]] | + | [[Category: Coseno M]] |
| - | [[Category: Gilmartin, G M]]
| + | [[Category: Doublie S]] |
| - | [[Category: Yang, Q]] | + | [[Category: Gilmartin GM]] |
| - | [[Category: 3' end processing]] | + | [[Category: Yang Q]] |
| - | [[Category: Cfim]] | + | |
| - | [[Category: Cfim25]]
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| - | [[Category: Cfim68]]
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| - | [[Category: Cleavage factor]]
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| - | [[Category: Cpsf]]
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| - | [[Category: Cpsf5]]
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| - | [[Category: Cpsf6]]
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| - | [[Category: Nudix fold]]
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| - | [[Category: Nudix protein]]
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| - | [[Category: Protein-protein complex]]
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| - | [[Category: Protein-rna complex]]
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| - | [[Category: Rna binding protein-rna complex]]
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| - | [[Category: Rna processing]]
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| - | [[Category: Rrm]]
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