2e1a

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[[Image:2e1a.jpg|left|200px]]
 
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==crystal structure of FFRP-DM1==
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The line below this paragraph, containing "STRUCTURE_2e1a", creates the "Structure Box" on the page.
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<StructureSection load='2e1a' size='340' side='right'caption='[[2e1a]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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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'>[[2e1a]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Pyrococcus_horikoshii_OT3 Pyrococcus horikoshii OT3]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2E1A OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2E1A FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 2.5&#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=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
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{{STRUCTURE_2e1a| PDB=2e1a | 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=2e1a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2e1a OCA], [https://pdbe.org/2e1a PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2e1a RCSB], [https://www.ebi.ac.uk/pdbsum/2e1a PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2e1a ProSAT]</span></td></tr>
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</table>
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'''crystal structure of FFRP-DM1'''
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== Function ==
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[https://www.uniprot.org/uniprot/O73983_PYRHO O73983_PYRHO]
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== Evolutionary Conservation ==
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==Overview==
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[[Image:Consurf_key_small.gif|200px|right]]
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Feast/famine regulatory proteins (FFRPs) comprise the largest group of archaeal transcription factors. Crystal structures of an FFRP, DM1 from Pyrococcus, were determined in complex with isoleucine, which increases the association state of DM1 to form octamers, and with selenomethionine, which decreases it to maintain dimers under some conditions. Asp39 and Thr/Ser at 69-71 were identified as being important for interaction with the ligand main chain. By analyzing residues surrounding the ligand side chain, partner ligands were identified for various FFRPs from Pyrococcus, e.g., lysine facilitates homo-octamerization of FL11, and arginine facilitates hetero-octamerization of FL11 and DM1. Transcription of the fl11 gene and lysine synthesis are regulated by shifting the equilibrium between association states of FL11 and by shifting the equilibrium toward association with DM1, in response to amino acid availability. With FFRPs also appearing in eubacteria, the origin of such regulation can be traced back to the common ancestor of all extant organisms, serving as a prototype of transcription regulations, now highly diverged.
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Check<jmol>
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<jmolCheckbox>
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==About this Structure==
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/e1/2e1a_consurf.spt"</scriptWhenChecked>
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2E1A is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Pyrococcus_horikoshii Pyrococcus horikoshii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2E1A OCA].
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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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==Reference==
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</jmolCheckbox>
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A structural code for discriminating between transcription signals revealed by the feast/famine regulatory protein DM1 in complex with ligands., Okamura H, Yokoyama K, Koike H, Yamada M, Shimowasa A, Kabasawa M, Kawashima T, Suzuki M, Structure. 2007 Oct;15(10):1325-38. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17937921 17937921]
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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=2e1a ConSurf].
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[[Category: Pyrococcus horikoshii]]
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<div style="clear:both"></div>
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[[Category: Single protein]]
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__TOC__
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[[Category: Koike, H.]]
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</StructureSection>
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[[Category: Suzuki, M.]]
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[[Category: Large Structures]]
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[[Category: Archaea]]
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[[Category: Pyrococcus horikoshii OT3]]
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[[Category: Transcriptional regulatory protein]]
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[[Category: Koike H]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 01:44:37 2008''
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[[Category: Suzuki M]]

Current revision

crystal structure of FFRP-DM1

PDB ID 2e1a

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