View source for 5vpb


==Transcription factor FosB/JunD bZIP domain in its oxidized form, type-I crystal==
<StructureSection load='5vpb' size='340' side='right'caption='[[5vpb]], [[Resolution|resolution]] 2.69&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5vpb]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5VPB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5VPB FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.691&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</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=5vpb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5vpb OCA], [https://pdbe.org/5vpb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5vpb RCSB], [https://www.ebi.ac.uk/pdbsum/5vpb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5vpb ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/FOSB_HUMAN FOSB_HUMAN] FosB interacts with Jun proteins enhancing their DNA binding activity.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The transcription factor, activator protein-1 (AP-1), binds to cognate DNA under redox control; yet, the underlying mechanism has remained enigmatic. A series of crystal structures of the AP-1 FosB/JunD bZIP domains reveal ordered DNA-binding regions in both FosB and JunD even in absence DNA. However, while JunD is competent to bind DNA, the FosB bZIP domain must undergo a large conformational rearrangement that is controlled by a 'redox switch' centered on an inter-molecular disulfide bond. Solution studies confirm that FosB/JunD cannot undergo structural transition and bind DNA when the redox-switch is in the 'OFF' state, and show that the mid-point redox potential of the redox switch affords it sensitivity to cellular redox homeostasis. The molecular and structural studies presented here thus reveal the mechanism underlying redox-regulation of AP-1 Fos/Jun transcription factors and provide structural insight for therapeutic interventions targeting AP-1 proteins.

Activator Protein-1: redox switch controlling structure and DNA-binding.,Yin Z, Machius M, Nestler EJ, Rudenko G Nucleic Acids Res. 2017 Sep 7. doi: 10.1093/nar/gkx795. PMID:28981703<ref>PMID:28981703</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5vpb" style="background-color:#fffaf0;"></div>

==See Also==
*[[Metallothiol transferase FosB|Metallothiol transferase FosB]]
== References ==
<references/>
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Machius M]]
[[Category: Rudenko G]]
[[Category: Yin Z]]