1i1g

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(New page: 200px<br /><applet load="1i1g" size="450" color="white" frame="true" align="right" spinBox="true" caption="1i1g, resolution 2.9&Aring;" /> '''CRYSTAL STRUCTURE OF ...)
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[[Image:1i1g.gif|left|200px]]<br /><applet load="1i1g" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1i1g, resolution 2.9&Aring;" />
 
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'''CRYSTAL STRUCTURE OF THE LRP-LIKE TRANSCRIPTIONAL REGULATOR FROM THE ARCHAEON PYROCOCCUS FURIOSUS'''<br />
 
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==Overview==
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==CRYSTAL STRUCTURE OF THE LRP-LIKE TRANSCRIPTIONAL REGULATOR FROM THE ARCHAEON PYROCOCCUS FURIOSUS==
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The LrpA protein from the hyperthermophilic archaeon Pyrococcus furiosus, belongs to the Lrp/AsnC family of transcriptional regulatory proteins, of, which the Escherichia coli leucine-responsive regulatory protein is the, archetype. Its crystal structure has been determined at 2.9 A resolution, and is the first for a member of the Lrp/AsnC family, as well as one of, the first for a transcriptional regulator from a hyperthermophile. The, structure consists of an N-terminal domain containing a helix-turn-helix, (HtH) DNA-binding motif, and a C-terminal domain of mixed alpha/beta, character reminiscent of a number of RNA- and DNA-binding domains., Pyrococcus furiosus LrpA forms a homodimer mainly through interactions, between the antiparallel beta-sheets of the C-terminal domain, and further, interactions lead to octamer formation. The LrpA structure suggests how, the protein might bind and possibly distort its DNA substrate through use, of its HtH motifs and control gene expression. A possible location for an, effector binding site is proposed by using sequence comparisons with other, members of the family coupled to mutational analysis.
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<StructureSection load='1i1g' size='340' side='right'caption='[[1i1g]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1i1g]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Pyrococcus_furiosus Pyrococcus furiosus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1I1G OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1I1G FirstGlance]. <br>
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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]] 2.9&#8491;</td></tr>
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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=1i1g FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1i1g OCA], [https://pdbe.org/1i1g PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1i1g RCSB], [https://www.ebi.ac.uk/pdbsum/1i1g PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1i1g ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/REG7_PYRFU REG7_PYRFU] Negatively regulates its own transcription. Binds to a 46-base pair sequence that overlaps the transcriptional start site of its own promoter.
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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/i1/1i1g_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/main_output.php?pdb_ID=1i1g ConSurf].
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<div style="clear:both"></div>
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==About this Structure==
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==See Also==
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1I1G is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Pyrococcus_furiosus Pyrococcus furiosus]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1I1G OCA].
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*[[Transcriptional activator 3D structures|Transcriptional activator 3D structures]]
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__TOC__
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==Reference==
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</StructureSection>
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Crystal structure of the Lrp-like transcriptional regulator from the archaeon Pyrococcus furiosus., Leonard PM, Smits SH, Sedelnikova SE, Brinkman AB, de Vos WM, van der Oost J, Rice DW, Rafferty JB, EMBO J. 2001 Mar 1;20(5):990-7. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=11230123 11230123]
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[[Category: Large Structures]]
[[Category: Pyrococcus furiosus]]
[[Category: Pyrococcus furiosus]]
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[[Category: Single protein]]
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[[Category: Brinkman AB]]
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[[Category: Brinkman, A.B.]]
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[[Category: Leonard PM]]
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[[Category: Leonard, P.M.]]
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[[Category: Rafferty JB]]
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[[Category: Oost, J.van.der.]]
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[[Category: Rice DW]]
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[[Category: Rafferty, J.B.]]
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[[Category: Sedelnikova SE]]
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[[Category: Rice, D.W.]]
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[[Category: Smits SHJ]]
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[[Category: Sedelnikova, S.E.]]
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[[Category: De Vos WM]]
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[[Category: Smits, S.H.J.]]
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[[Category: Van der Oost J]]
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[[Category: Vos, W.M.de.]]
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[[Category: helix-turn-helix]]
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[[Category: lrp/asnc family]]
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[[Category: pyrococcus furiosus]]
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[[Category: transcriptional regulator]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Nov 20 16:58:24 2007''
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Current revision

CRYSTAL STRUCTURE OF THE LRP-LIKE TRANSCRIPTIONAL REGULATOR FROM THE ARCHAEON PYROCOCCUS FURIOSUS

PDB ID 1i1g

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