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| | <StructureSection load='2r5y' size='340' side='right'caption='[[2r5y]], [[Resolution|resolution]] 2.60Å' scene=''> | | <StructureSection load='2r5y' size='340' side='right'caption='[[2r5y]], [[Resolution|resolution]] 2.60Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2r5y]] 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=2R5Y OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2R5Y FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2r5y]] 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=2R5Y OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2R5Y FirstGlance]. <br> |
| - | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1b8i|1b8i]], [[2r5z|2r5z]]</div></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]] 2.6Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Scr ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 DROME]), exd ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 DROME])</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=2r5y FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2r5y OCA], [https://pdbe.org/2r5y PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2r5y RCSB], [https://www.ebi.ac.uk/pdbsum/2r5y PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2r5y 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=2r5y FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2r5y OCA], [https://pdbe.org/2r5y PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2r5y RCSB], [https://www.ebi.ac.uk/pdbsum/2r5y PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2r5y ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/EXD_DROME EXD_DROME]] Transcription factor which acts with the selector homeodomain proteins altering the regulation of downstream target genes such as wingless (wg), teashirt (tsh) and decapentaplegic (dpp), thus affecting segmental identity. Delimits the eye field and prevent inappropriate eye development. Required for proper localization of chordotonal organs within the peripheral nervous system.<ref>PMID:8104703</ref> <ref>PMID:8100142</ref> <ref>PMID:7914871</ref> <ref>PMID:9346235</ref> <ref>PMID:9463350</ref> <ref>PMID:9450936</ref> [[https://www.uniprot.org/uniprot/SCR_DROME SCR_DROME]] Sequence-specific transcription factor which is part of a developmental regulatory system that provides cells with specific positional identities on the anterior-posterior axis. Controls the segmental transformation of the first to the second thoracic segment (prothorax to mesothorax) and of the labial palps into maxillary palps. In embryo, required for fusion of labial lobes and development of the T1 denticle belt. In adult, expression in the head is necessary for proper development of the labium. In the first thoracic segment of the adult, required for proper development of the sex comb and to suppress improper prothoracic wing development.<ref>PMID:1743486</ref>
| + | [https://www.uniprot.org/uniprot/SCR_DROME SCR_DROME] Sequence-specific transcription factor which is part of a developmental regulatory system that provides cells with specific positional identities on the anterior-posterior axis. Controls the segmental transformation of the first to the second thoracic segment (prothorax to mesothorax) and of the labial palps into maxillary palps. In embryo, required for fusion of labial lobes and development of the T1 denticle belt. In adult, expression in the head is necessary for proper development of the labium. In the first thoracic segment of the adult, required for proper development of the sex comb and to suppress improper prothoracic wing development.<ref>PMID:1743486</ref> |
| | == 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: Aggarwal, A K]] | + | [[Category: Synthetic construct]] |
| - | [[Category: Jain, R]] | + | [[Category: Aggarwal AK]] |
| - | [[Category: Passner, J M]] | + | [[Category: Jain R]] |
| - | [[Category: Developmental protein]] | + | [[Category: Passner JM]] |
| - | [[Category: Dna-binding]]
| + | |
| - | [[Category: Homeobox]]
| + | |
| - | [[Category: Homeodomain]]
| + | |
| - | [[Category: Homeotic protein]]
| + | |
| - | [[Category: Nucleus]]
| + | |
| - | [[Category: Specificity]]
| + | |
| - | [[Category: Transcription]]
| + | |
| - | [[Category: Transcription regulation]]
| + | |
| - | [[Category: Transcription-dna complex]]
| + | |
| Structural highlights
Function
SCR_DROME Sequence-specific transcription factor which is part of a developmental regulatory system that provides cells with specific positional identities on the anterior-posterior axis. Controls the segmental transformation of the first to the second thoracic segment (prothorax to mesothorax) and of the labial palps into maxillary palps. In embryo, required for fusion of labial lobes and development of the T1 denticle belt. In adult, expression in the head is necessary for proper development of the labium. In the first thoracic segment of the adult, required for proper development of the sex comb and to suppress improper prothoracic wing development.[1]
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
The recognition of specific DNA-binding sites by transcription factors is a critical yet poorly understood step in the control of gene expression. Members of the Hox family of transcription factors bind DNA by making nearly identical major groove contacts via the recognition helices of their homeodomains. In vivo specificity, however, often depends on extended and unstructured regions that link Hox homeodomains to a DNA-bound cofactor, Extradenticle (Exd). Using a combination of structure determination, computational analysis, and in vitro and in vivo assays, we show that Hox proteins recognize specific Hox-Exd binding sites via residues located in these extended regions that insert into the minor groove but only when presented with the correct DNA sequence. Our results suggest that these residues, which are conserved in a paralog-specific manner, confer specificity by recognizing a sequence-dependent DNA structure instead of directly reading a specific DNA sequence.
Functional specificity of a Hox protein mediated by the recognition of minor groove structure.,Joshi R, Passner JM, Rohs R, Jain R, Sosinsky A, Crickmore MA, Jacob V, Aggarwal AK, Honig B, Mann RS Cell. 2007 Nov 2;131(3):530-43. PMID:17981120[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Pattatucci AM, Otteson DC, Kaufman TC. A functional and structural analysis of the Sex combs reduced locus of Drosophila melanogaster. Genetics. 1991 Oct;129(2):423-41. PMID:1743486
- ↑ Joshi R, Passner JM, Rohs R, Jain R, Sosinsky A, Crickmore MA, Jacob V, Aggarwal AK, Honig B, Mann RS. Functional specificity of a Hox protein mediated by the recognition of minor groove structure. Cell. 2007 Nov 2;131(3):530-43. PMID:17981120 doi:10.1016/j.cell.2007.09.024
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