1hdd: Difference between revisions

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[[Image:1hdd.png|left|200px]]


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==CRYSTAL STRUCTURE OF AN ENGRAILED HOMEODOMAIN-DNA COMPLEX AT 2.8 ANGSTROMS RESOLUTION: A FRAMEWORK FOR UNDERSTANDING HOMEODOMAIN-DNA INTERACTIONS==
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<StructureSection load='1hdd' size='340' side='right'caption='[[1hdd]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1hdd]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster] and [https://en.wikipedia.org/wiki/Synthetic_construct Synthetic construct]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HDD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1HDD 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]] 2.8&#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=1hdd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1hdd OCA], [https://pdbe.org/1hdd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1hdd RCSB], [https://www.ebi.ac.uk/pdbsum/1hdd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1hdd ProSAT]</span></td></tr>
{{STRUCTURE_1hdd|  PDB=1hdd  |  SCENE=  }}
</table>
== 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.
== 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/hd/1hdd_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=1hdd ConSurf].
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== Publication Abstract from PubMed ==
The crystal structure of a complex containing the engrailed homeodomain and a duplex DNA site has been determined at 2.8 A resolution and refined to a crystallographic R factor of 24.4%. In this complex, two separate regions of the 61 amino acid polypeptide contact a TAAT subsite. An N-terminal arm fits into the minor groove, and the side chains of Arg-3 and Arg-5 make contacts near the 5' end of this "core consensus" binding site. An alpha helix fits into the major groove, and the side chains of IIe-47 and Asn-51 contact base pairs near the 3' end of the TAAT site. This "recognition helix" is part of a structurally conserved helix-turn-helix unit, but these helices are longer than the corresponding helices in the lambda repressor, and the relationship between the helix-turn-helix unit and the DNA is significantly different.


===CRYSTAL STRUCTURE OF AN ENGRAILED HOMEODOMAIN-DNA COMPLEX AT 2.8 ANGSTROMS RESOLUTION: A FRAMEWORK FOR UNDERSTANDING HOMEODOMAIN-DNA INTERACTIONS===
Crystal structure of an engrailed homeodomain-DNA complex at 2.8 A resolution: a framework for understanding homeodomain-DNA interactions.,Kissinger CR, Liu BS, Martin-Blanco E, Kornberg TB, Pabo CO Cell. 1990 Nov 2;63(3):579-90. PMID:1977522<ref>PMID:1977522</ref>


 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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(as it appears on PubMed at http://www.pubmed.gov), where 1977522 is the PubMed ID number.
== References ==
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<references/>
{{ABSTRACT_PUBMED_1977522}}
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</StructureSection>
==About this Structure==
1HDD is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HDD OCA].
 
==Reference==
Crystal structure of an engrailed homeodomain-DNA complex at 2.8 A resolution: a framework for understanding homeodomain-DNA interactions., Kissinger CR, Liu BS, Martin-Blanco E, Kornberg TB, Pabo CO, Cell. 1990 Nov 2;63(3):579-90. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/1977522 1977522]
[[Category: Drosophila melanogaster]]
[[Category: Drosophila melanogaster]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Kissinger, C R.]]
[[Category: Synthetic construct]]
[[Category: Liu, B.]]
[[Category: Kissinger CR]]
[[Category: Martin-Blanco, E.]]
[[Category: Kornberg TB]]
[[Category: Pabo, T B.Kornberg C O.]]
[[Category: Liu B]]
[[Category: Double helix]]
[[Category: Martin-Blanco E]]
[[Category: Protein-dna complex]]
[[Category: Pabo CO]]
 
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