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<StructureSection load='1enh' size='340' side='right'caption='[[1enh]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
<StructureSection load='1enh' size='340' side='right'caption='[[1enh]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1enh]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ENH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ENH FirstGlance]. <br>
<table><tr><td colspan='2'>[[1enh]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ENH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ENH FirstGlance]. <br>
</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=1enh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1enh OCA], [https://pdbe.org/1enh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1enh RCSB], [https://www.ebi.ac.uk/pdbsum/1enh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1enh ProSAT]</span></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.1&#8491;</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=1enh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1enh OCA], [https://pdbe.org/1enh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1enh RCSB], [https://www.ebi.ac.uk/pdbsum/1enh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1enh ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/HMEN_DROME HMEN_DROME]] This protein specifies the body segmentation pattern. It is required for the development of the central nervous system. Transcriptional regulator that represses activated promoters. Wg signaling operates by inactivating the SGG repression of EN autoactivation.  
[https://www.uniprot.org/uniprot/HMEN_DROME HMEN_DROME] This protein specifies the body segmentation pattern. It is required for the development of the central nervous system. Transcriptional regulator that represses activated promoters. Wg signaling operates by inactivating the SGG repression of EN autoactivation.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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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=1enh ConSurf].
</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=1enh ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The structure of the Drosophila engrailed homeodomain has been solved by molecular replacement and refined to an R-factor of 19.7% at a resolution of 2.1 A. This structure offers a high-resolution view of an important family of DNA-binding proteins and allows comparison to the structure of the same protein bound to DNA. The most significant difference between the current structure and that of the 2.8-A engrailed-DNA complex is the close packing of an extended strand against the rest of the protein in the unbound protein. Structural features of the protein not previously noted include a "herringbone" packing of 4 aromatic residues in the core of the protein and an extensive network of salt bridges that covers much of the helix 1-helix 2 surface. Other features that may play a role in stabilizing the native state include the interaction of buried carbonyl oxygen atoms with the edge of Phe 49 and a bias toward statistically preferred side-chain dihedral angles. There is substantial disorder at both ends of the 61 amino acid protein. A 51-amino acid variant of engrailed (residues 6-56) was synthesized and shown by CD and thermal denaturation studies to be structurally and thermodynamically similar to the full-length domain.
Structural studies of the engrailed homeodomain.,Clarke ND, Kissinger CR, Desjarlais J, Gilliland GL, Pabo CO Protein Sci. 1994 Oct;3(10):1779-87. PMID:7849596<ref>PMID:7849596</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1enh" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Drosophila melanogaster]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Clarke, N D]]
[[Category: Clarke ND]]
[[Category: Desjarlais, J]]
[[Category: Desjarlais J]]
[[Category: Gilliland, G L]]
[[Category: Gilliland GL]]
[[Category: Kissinger, C R]]
[[Category: Kissinger CR]]
[[Category: Pabo, C O]]
[[Category: Pabo CO]]
[[Category: Dna-binding protein]]

Latest revision as of 07:04, 7 February 2024

STRUCTURAL STUDIES OF THE ENGRAILED HOMEODOMAIN

1enh, resolution 2.10Å

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