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| | <StructureSection load='6z7o' size='340' side='right'caption='[[6z7o]], [[Resolution|resolution]] 2.33Å' scene=''> | | <StructureSection load='6z7o' size='340' side='right'caption='[[6z7o]], [[Resolution|resolution]] 2.33Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[6z7o]] is a 1 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=6Z7O OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6Z7O FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[6z7o]] 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=6Z7O OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6Z7O FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</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]] 2.33Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">TrxT, CG3315 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 DROME])</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></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=6z7o FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6z7o OCA], [https://pdbe.org/6z7o PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6z7o RCSB], [https://www.ebi.ac.uk/pdbsum/6z7o PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6z7o 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=6z7o FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6z7o OCA], [https://pdbe.org/6z7o PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6z7o RCSB], [https://www.ebi.ac.uk/pdbsum/6z7o PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6z7o ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/THIOT_DROME THIOT_DROME]] Probably participates in various redox reactions through the reversible oxidation of its active center dithiol to a disulfide and catalyzes dithiol-disulfide exchange reactions. Its tissue specificity suggests a regulatory role in the germline.
| + | [https://www.uniprot.org/uniprot/THIOT_DROME THIOT_DROME] Probably participates in various redox reactions through the reversible oxidation of its active center dithiol to a disulfide and catalyzes dithiol-disulfide exchange reactions. Its tissue specificity suggests a regulatory role in the germline. |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Drome]] | |
| - | [[Category: Large Structures]] | |
| - | [[Category: Aragon, E]] | |
| - | [[Category: Baginski, B]] | |
| - | [[Category: Freier, R]] | |
| - | [[Category: Gonzaez, C]] | |
| - | [[Category: Macias, M]] | |
| - | [[Category: Martin-Malpartida, P]] | |
| - | [[Category: Pluta, R]] | |
| - | [[Category: Torner, C]] | |
| | [[Category: Drosophila melanogaster]] | | [[Category: Drosophila melanogaster]] |
| - | [[Category: Nuclear protein]] | + | [[Category: Large Structures]] |
| - | [[Category: Oxidoreductase]] | + | [[Category: Aragon E]] |
| - | [[Category: Thioredoxin-t]] | + | [[Category: Baginski B]] |
| | + | [[Category: Freier R]] |
| | + | [[Category: Gonzaez C]] |
| | + | [[Category: Macias M]] |
| | + | [[Category: Martin-Malpartida P]] |
| | + | [[Category: Pluta R]] |
| | + | [[Category: Torner C]] |
| Structural highlights
Function
THIOT_DROME Probably participates in various redox reactions through the reversible oxidation of its active center dithiol to a disulfide and catalyzes dithiol-disulfide exchange reactions. Its tissue specificity suggests a regulatory role in the germline.
Publication Abstract from PubMed
Thioredoxins (Trxs) are ubiquitous enzymes that regulate the redox state in cells. In Drosophila, there are two germline-specific Trxs, Deadhead (Dhd) and thioredoxin T (TrxT), that belong to the lethal(3)malignant brain tumor signature genes and to the 'survival network' of genes that mediate the cellular response to DNA damage. Dhd is a maternal protein required for early embryogenesis that promotes protamine-histone exchange in fertilized eggs and midblastula transition. TrxT is testis-specific and associates with the lampbrush loops of the Y chromosome. Here, the first structures of Dhd and TrxT are presented, unveiling new features of these two thioredoxins. Dhd has positively charged patches on its surface, in contrast to the negatively charged surfaces commonly found in most Trxs. This distinctive charge distribution helps to define initial encounter complexes with DNA/RNA that will lead to final specific interactions with cofactors to promote chromatin remodeling. TrxT contains a C-terminal extension, which is mostly unstructured and highly flexible, that wraps the conserved core through a closed conformation. It is believed that these new structures can guide future work aimed at understanding embryo development and redox homeostasis in Drosophila. Moreover, due to their restricted presence in Schizophora (a section of the true flies), these structures can help in the design of small-molecular binders to modulate native redox homeostasis, thereby providing new applications for the control of plagues that cause human diseases and/or bring about economic losses by damaging crop production.
Structures of the germline-specific Deadhead and thioredoxin T proteins from Drosophila melanogaster reveal unique features among thioredoxins.,Freier R, Aragon E, Baginski B, Pluta R, Martin-Malpartida P, Ruiz L, Condeminas M, Gonzalez C, Macias MJ IUCrJ. 2021 Feb 11;8(Pt 2):281-294. doi: 10.1107/S2052252521000221. eCollection, 2021 Mar 1. PMID:33708404[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Freier R, Aragon E, Baginski B, Pluta R, Martin-Malpartida P, Ruiz L, Condeminas M, Gonzalez C, Macias MJ. Structures of the germline-specific Deadhead and thioredoxin T proteins from Drosophila melanogaster reveal unique features among thioredoxins. IUCrJ. 2021 Feb 11;8(Pt 2):281-294. doi: 10.1107/S2052252521000221. eCollection, 2021 Mar 1. PMID:33708404 doi:http://dx.doi.org/10.1107/S2052252521000221
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