2lef: Difference between revisions
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< | ==LEF1 HMG DOMAIN (FROM MOUSE), COMPLEXED WITH DNA (15BP), NMR, 12 STRUCTURES== | ||
<StructureSection load='2lef' size='340' side='right'caption='[[2lef]]' scene=''> | |||
You may | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2lef]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1lef 1lef]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2LEF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2LEF FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=2lef FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2lef OCA], [https://pdbe.org/2lef PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2lef RCSB], [https://www.ebi.ac.uk/pdbsum/2lef PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2lef ProSAT]</span></td></tr> | ||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/LEF1_MOUSE LEF1_MOUSE] Participates in the Wnt signaling pathway. Activates transcription of target genes in the presence of CTNNB1 and EP300. May play a role in hair cell differentiation and follicle morphogenesis. TLE1, TLE2, TLE3 and TLE4 repress transactivation mediated by LEF1 and CTNNB1 (By similarity). Regulates T-cell receptor alpha enhancer function. Binds DNA in a sequence-specific manner. PIASG antagonizes both Wnt-dependent and Wnt-independent activation by LEF1.<ref>PMID:11445543</ref> | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/le/2lef_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</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=2lef ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Lymphoid enhancer-binding factor (LEF-1) and the closely related T-cell factor 1 (TCF-1) are sequence-specific and cell-type-specific DNA-binding proteins that play important regulatory roles in organogenesis and thymocyte differentiation. LEF-1 participates in regulation of the enhancer associated with the T cell receptor (TCR)-alpha gene by inducing a sharp bend in the DNA and facilitating interactions between Ets-1, PEBP2-alpha, and ATF/CREB, transcription factors bound at sites flanking the LEF-1 site. It seems that LEF-1 plays an architectural role in the assembly and function of this regulatory nucleoprotein complex. LEF-1 recognizes a specific nucleotide sequence through a high-mobility-group (HMG) domain. Proteins containing HMG domains bind DNA in the minor groove, bend the double helix, and recognize four-way junctions and other irregular DNA structures. Here we report the solution structure of a complex of the LEF-1 HMG domain and adjacent basic region with its cognate DNA. The structure reveals the HMG domain bound in the widened minor groove of a markedly distorted and bent double helix. The basic region binds across the narrowed major groove and contributes to DNA recognition. | |||
Structural basis for DNA bending by the architectural transcription factor LEF-1.,Love JJ, Li X, Case DA, Giese K, Grosschedl R, Wright PE Nature. 1995 Aug 31;376(6543):791-5. PMID:7651541<ref>PMID:7651541</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 2lef" style="background-color:#fffaf0;"></div> | |||
== References == | |||
--> | <references/> | ||
__TOC__ | |||
</StructureSection> | |||
== | [[Category: Large Structures]] | ||
[[Category: Mus musculus]] | [[Category: Mus musculus]] | ||
[[Category: Case DA]] | |||
[[Category: Case | [[Category: Li X]] | ||
[[Category: Li | [[Category: Love JJ]] | ||
[[Category: Love | [[Category: Wright PE]] | ||
[[Category: Wright | |||