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| | <StructureSection load='1p7i' size='340' side='right'caption='[[1p7i]], [[Resolution|resolution]] 2.10Å' scene=''> | | <StructureSection load='1p7i' size='340' side='right'caption='[[1p7i]], [[Resolution|resolution]] 2.10Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1p7i]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Drome Drome]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1P7I OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1P7I FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1p7i]] is a 4 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=1P7I OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1P7I FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NHE:2-[N-CYCLOHEXYLAMINO]ETHANE+SULFONIC+ACID'>NHE</scene></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]] 2.1Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1enh|1enh]], [[3hdd|3hdd]], [[1duo|1duo]], [[2hdd|2hdd]]</div></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NHE:2-[N-CYCLOHEXYLAMINO]ETHANE+SULFONIC+ACID'>NHE</scene></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">EN ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 DROME])</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=1p7i FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1p7i OCA], [https://pdbe.org/1p7i PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1p7i RCSB], [https://www.ebi.ac.uk/pdbsum/1p7i PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1p7i ProSAT]</span></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=1p7i FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1p7i OCA], [https://pdbe.org/1p7i PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1p7i RCSB], [https://www.ebi.ac.uk/pdbsum/1p7i PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1p7i 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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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Drome]] | + | [[Category: Drosophila melanogaster]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Federici, L]] | + | [[Category: Federici L]] |
| - | [[Category: Fersht, A R]] | + | [[Category: Fersht AR]] |
| - | [[Category: Freund, S M]] | + | [[Category: Freund SM]] |
| - | [[Category: Lovell, S C]] | + | [[Category: Lovell SC]] |
| - | [[Category: Luisi, B F]] | + | [[Category: Luisi BF]] |
| - | [[Category: Mayor, U]] | + | [[Category: Mayor U]] |
| - | [[Category: Stollar, E J]] | + | [[Category: Stollar EJ]] |
| - | [[Category: Dna binding protein]]
| + | |
| Structural highlights
Function
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
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
We report the crystal structures and biophysical characterization of two stabilized mutants of the Drosophila Engrailed homeodomain that have been engineered to minimize electrostatic repulsion. Four independent copies of each mutant occupy the crystal lattice, and comparison of these structures illustrates variation that can be partly ascribed to networks of correlated conformational adjustments. Central to one network is leucine 26 (Leu26), which occupies alternatively two side chain rotameric conformations (-gauche and trans) and different positions within the hydrophobic core. Similar sets of conformational substates are observed in other Engrailed structures and in another homeodomain. The pattern of structural adjustments can account for NMR relaxation data and sequence co-variation networks in the wider homeodomain family. It may also explain the dysfunction associated with a P26L mutation in the human ARX homeodomain protein. Finally, we observe a novel dipolar interaction between a conserved tryptophan and a water molecule positioned along the normal to the indole ring. This interaction may explain the distinctive fluorescent properties of the homeodomain family.
Crystal structures of engrailed homeodomain mutants: implications for stability and dynamics.,Stollar EJ, Mayor U, Lovell SC, Federici L, Freund SM, Fersht AR, Luisi BF J Biol Chem. 2003 Oct 31;278(44):43699-708. Epub 2003 Aug 15. PMID:12923178[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Stollar EJ, Mayor U, Lovell SC, Federici L, Freund SM, Fersht AR, Luisi BF. Crystal structures of engrailed homeodomain mutants: implications for stability and dynamics. J Biol Chem. 2003 Oct 31;278(44):43699-708. Epub 2003 Aug 15. PMID:12923178 doi:http://dx.doi.org/10.1074/jbc.M308029200
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