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| ==Crystal structure of the Drosophila melanogaster Ssu72-pCTD complex== | | ==Crystal structure of the Drosophila melanogaster Ssu72-pCTD complex== |
| <StructureSection load='3p9y' size='340' side='right' caption='[[3p9y]], [[Resolution|resolution]] 2.10Å' scene=''> | | <StructureSection load='3p9y' size='340' side='right'caption='[[3p9y]], [[Resolution|resolution]] 2.10Å' scene=''> |
| == Structural highlights == | | == Structural highlights == |
| <table><tr><td colspan='2'>[[3p9y]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3P9Y OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3P9Y FirstGlance]. <br> | | <table><tr><td colspan='2'>[[3p9y]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster] and [https://en.wikipedia.org/wiki/Synthetic_construct Synthetic construct]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3P9Y OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3P9Y FirstGlance]. <br> |
| </td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=IMD:IMIDAZOLE'>IMD</scene>, <scene name='pdbligand=PG4:TETRAETHYLENE+GLYCOL'>PG4</scene><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]] 2.1Å</td></tr> |
| <tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=N7P:1-ACETYL-L-PROLINE'>N7P</scene>, <scene name='pdbligand=SEP:PHOSPHOSERINE'>SEP</scene>, <scene name='pdbligand=SET:AMINOSERINE'>SET</scene></td></tr> | | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=IMD:IMIDAZOLE'>IMD</scene>, <scene name='pdbligand=N7P:1-ACETYL-L-PROLINE'>N7P</scene>, <scene name='pdbligand=PG4:TETRAETHYLENE+GLYCOL'>PG4</scene>, <scene name='pdbligand=SEP:PHOSPHOSERINE'>SEP</scene>, <scene name='pdbligand=SET:AMINOSERINE'>SET</scene></td></tr> |
| <tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CG14216, Dmel_CG14216 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 Drosophila melanogaster])</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=3p9y FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3p9y OCA], [https://pdbe.org/3p9y PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3p9y RCSB], [https://www.ebi.ac.uk/pdbsum/3p9y PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3p9y ProSAT]</span></td></tr> |
| <tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3p9y FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3p9y OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3p9y RCSB], [http://www.ebi.ac.uk/pdbsum/3p9y PDBsum]</span></td></tr>
| | </table> |
| <table> | | == Function == |
| <div style="background-color:#fffaf0;">
| | [https://www.uniprot.org/uniprot/Q9VWE4_DROME Q9VWE4_DROME] |
| == Publication Abstract from PubMed == | |
| RNA polymerase II coordinates co-transcriptional events by recruiting distinct sets of nuclear factors to specific stages of transcription via changes of phosphorylation patterns along its C-terminal domain (CTD). Although it has become increasingly clear that proline isomerization also helps regulate CTD-associated processes, the molecular basis of its role is unknown. Here, we report the structure of the Ser(P)(5) CTD phosphatase Ssu72 in complex with substrate, revealing a remarkable CTD conformation with the Ser(P)(5)-Pro(6) motif in the cis configuration. We show that the cis-Ser(P)(5)-Pro(6) isomer is the minor population in solution and that Ess1-catalyzed cis-trans-proline isomerization facilitates rapid dephosphorylation by Ssu72, providing an explanation for recently discovered in vivo connections between these enzymes and a revised model for CTD-mediated small nuclear RNA termination. This work presents the first structural evidence of a cis-proline-specific enzyme and an unexpected mechanism of isomer-based regulation of phosphorylation, with broad implications for CTD biology.
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| cis-Proline-mediated Ser(P)5 Dephosphorylation by the RNA Polymerase II C-terminal Domain Phosphatase Ssu72.,Werner-Allen JW, Lee CJ, Liu P, Nicely NI, Wang S, Greenleaf AL, Zhou P J Biol Chem. 2011 Feb 18;286(7):5717-26. Epub 2010 Dec 15. PMID:21159777<ref>PMID:21159777</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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| == References ==
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| <references/>
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| __TOC__ | | __TOC__ |
| </StructureSection> | | </StructureSection> |
| [[Category: Drosophila melanogaster]] | | [[Category: Drosophila melanogaster]] |
| [[Category: Werner-Allen, J W.]] | | [[Category: Large Structures]] |
| [[Category: Zhou, P.]] | | [[Category: Synthetic construct]] |
| [[Category: Cis proline]] | | [[Category: Werner-Allen JW]] |
| [[Category: Hydrolase]]
| | [[Category: Zhou P]] |
| [[Category: Lmw ptp-like fold]]
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| [[Category: Phosphatase]] | |
| [[Category: Rna polymerase ii ctd]]
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