2p6a

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[[Image:2p6a.png|left|200px]]
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==The structure of the Activin:Follistatin 315 complex==
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<StructureSection load='2p6a' size='340' side='right' caption='[[2p6a]], [[Resolution|resolution]] 3.40&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2p6a]] is a 5 chain structure with sequence 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=2P6A OCA]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">INHBA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]), FST ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Glucokinase Glucokinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.2 2.7.1.2] </span></td></tr>
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<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=2p6a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2p6a OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2p6a RCSB], [http://www.ebi.ac.uk/pdbsum/2p6a 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/p6/2p6a_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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Follistatin (FS) regulates transforming growth factor-beta superfamily ligands and is necessary for normal embryonic and ovarian follicle development. Follistatin is expressed as two splice variants (FS288 and FS315). Previous studies indicated differences in heparin binding between FS288 and FS315, potentially influencing the physiological functions and locations of these isoforms. We have determined the structure of the FS315-activin A complex and quantitatively compared heparin binding by the two isoforms. The FS315 complex structure shows that both isoforms inhibit activin similarly, but FS315 exhibits movements within follistatin domain 3 (FSD3) apparently linked to binding of the C-terminal extension. Surprisingly, the binding affinities of FS288 and FS315 for heparin are similar at lower ionic strengths with FS315 binding decreasing more sharply as a function of salt concentration. When bound to activin, FS315 binds heparin similarly to the FS288 isoform, consistent with the structure of the complex, in which the acidic residues of the C-terminal extension cannot interact with the heparin-binding site. Activin-induced binding of heparin is unique to the FS315 isoform and may stimulate clearance of FS315 complexes.
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Structural and biophysical coupling of heparin and activin binding to follistatin isoform functions.,Lerch TF, Shimasaki S, Woodruff TK, Jardetzky TS J Biol Chem. 2007 May 25;282(21):15930-9. Epub 2007 Apr 3. PMID:17409095<ref>PMID:17409095</ref>
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The line below this paragraph, containing "STRUCTURE_2p6a", creates the "Structure Box" on the page.
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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or leave the SCENE parameter empty for the default display.
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-->
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{{STRUCTURE_2p6a| PDB=2p6a | SCENE= }}
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===The structure of the Activin:Follistatin 315 complex===
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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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<!--
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<references/>
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The line below this paragraph, {{ABSTRACT_PUBMED_17409095}}, adds the Publication Abstract to the page
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__TOC__
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(as it appears on PubMed at http://www.pubmed.gov), where 17409095 is the PubMed ID number.
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</StructureSection>
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-->
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{{ABSTRACT_PUBMED_17409095}}
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==About this Structure==
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[[2p6a]] is a 5 chain structure with sequence 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=2P6A OCA].
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==Reference==
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<ref group="xtra">PMID:017409095</ref><references group="xtra"/>
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Jardetzky, T S.]]
[[Category: Jardetzky, T S.]]

Revision as of 08:42, 7 May 2014

The structure of the Activin:Follistatin 315 complex

2p6a, resolution 3.40Å

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