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3ef1

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{{STRUCTURE_3ef1| PDB=3ef1 | SCENE= }}
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==The Structure of Fcp1, an essential RNA polymerase II CTD phosphatase==
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===The Structure of Fcp1, an essential RNA polymerase II CTD phosphatase===
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<StructureSection load='3ef1' size='340' side='right' caption='[[3ef1]], [[Resolution|resolution]] 2.15&Aring;' scene=''>
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{{ABSTRACT_PUBMED_19026779}}
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3ef1]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Schizosaccharomyces_pombe Schizosaccharomyces pombe]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3EF1 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3EF1 FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
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<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=BFD:ASPARTATE+BERYLLIUM+TRIFLUORIDE'>BFD</scene></td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3ef0|3ef0]]</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">fcp1, SPAC19B12.05c ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4896 Schizosaccharomyces pombe])</td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Phosphoprotein_phosphatase Phosphoprotein phosphatase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.3.16 3.1.3.16] </span></td></tr>
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<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=3ef1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ef1 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3ef1 RCSB], [http://www.ebi.ac.uk/pdbsum/3ef1 PDBsum]</span></td></tr>
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</table>
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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/ef/3ef1_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/chain_selection.php?pdb_ID=2ata 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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Kinases and phosphatases regulate mRNA synthesis and processing by phosphorylating and dephosphorylating the C-terminal domain (CTD) of the largest subunit of RNA polymerase II. Fcp1 is an essential CTD phosphatase that preferentially hydrolyzes Ser2-PO(4) of the tandem YSPTSPS CTD heptad array. Fcp1 crystal structures were captured at two stages of the reaction pathway: a Mg-BeF(3) complex that mimics the aspartylphosphate intermediate and a Mg-AlF(4)(-) complex that mimics the transition state of the hydrolysis step. Fcp1 is a Y-shaped protein composed of an acylphosphatase domain located at the base of a deep canyon formed by flanking modules that are missing from the small CTD phosphatase (SCP) clade: an Fcp1-specific helical domain and a C-terminal BRCA1 C-terminal (BRCT) domain. The structure and mutational analysis reveals that Fcp1 and Scp1 (a Ser5-selective phosphatase) adopt different CTD-binding modes; we surmise the CTD threads through the Fcp1 canyon to access the active site.
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==Function==
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The structure of Fcp1, an essential RNA polymerase II CTD phosphatase.,Ghosh A, Shuman S, Lima CD Mol Cell. 2008 Nov 21;32(4):478-90. PMID:19026779<ref>PMID:19026779</ref>
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[[http://www.uniprot.org/uniprot/FCP1_SCHPO FCP1_SCHPO]] Processively dephosphorylates 'Ser-2' and 'Ser-5' of the heptad repeats YSPTSPS in the C-terminal domain of the largest RNA polymerase II subunit. This promotes the activity of RNA polymerase II.
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==About this Structure==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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[[3ef1]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Schizosaccharomyces_pombe Schizosaccharomyces pombe]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3EF1 OCA].
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</div>
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==Reference==
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==See Also==
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<ref group="xtra">PMID:019026779</ref><references group="xtra"/><references/>
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*[[RNA polymerase|RNA polymerase]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Phosphoprotein phosphatase]]
[[Category: Phosphoprotein phosphatase]]
[[Category: Schizosaccharomyces pombe]]
[[Category: Schizosaccharomyces pombe]]
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[[Category: Ghosh, A.]]
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[[Category: Ghosh, A]]
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[[Category: Lima, C D.]]
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[[Category: Lima, C D]]
[[Category: Acylphosphate analog]]
[[Category: Acylphosphate analog]]
[[Category: Bef3]]
[[Category: Bef3]]

Revision as of 13:11, 18 December 2014

The Structure of Fcp1, an essential RNA polymerase II CTD phosphatase

3ef1, resolution 2.15Å

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