View source for 4xm5


==C. glabrata Slx1.==
<StructureSection load='4xm5' size='340' side='right'caption='[[4xm5]], [[Resolution|resolution]] 2.34&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4xm5]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Candida_glabrata Candida glabrata]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4XM5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4XM5 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]] 2.34&#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>, <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=4xm5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xm5 OCA], [https://pdbe.org/4xm5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4xm5 RCSB], [https://www.ebi.ac.uk/pdbsum/4xm5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4xm5 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/SLX1_CANGA SLX1_CANGA] Catalytic subunit of the SLX1-SLX4 structure-specific endonuclease that resolves DNA secondary structures generated during DNA repair and recombination. Has endonuclease activity towards branched DNA substrates, introducing single-strand cuts in duplex DNA close to junctions with ss-DNA.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The SLX1-SLX4 endonuclease required for homologous recombination and DNA repair in eukaryotic cells cleaves a variety of branched DNA structures. The nuclease subunit SLX1 is activated by association with a scaffolding protein SLX4. At the present time, little is known about the structure of SLX1-SLX4 or its mechanism of action. Here, we report the structural insights into SLX1-SLX4 by detailing the crystal structure of Candida glabrata (Cg) Slx1 alone and in combination with the C-terminal region of Slx4. The structure of Slx1 reveals a compact arrangement of the GIY-YIG nuclease and RING domains, which is reinforced by a long alpha helix. Slx1 forms a stable homodimer that blocks its active site. Slx1-Slx4 interaction is mutually exclusive with Slx1 homodimerization, suggesting a mechanism for Slx1 activation by Slx4.

Structural and Mechanistic Analysis of the Slx1-Slx4 Endonuclease.,Gaur V, Wyatt HD, Komorowska W, Szczepanowski RH, de Sanctis D, Gorecka KM, West SC, Nowotny M Cell Rep. 2015 Mar 3. pii: S2211-1247(15)00165-5. doi:, 10.1016/j.celrep.2015.02.019. PMID:25753413<ref>PMID:25753413</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4xm5" style="background-color:#fffaf0;"></div>

==See Also==
*[[Endonuclease 3D structures|Endonuclease 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Gaur V]]
[[Category: Gorecka KM]]
[[Category: Komorowska W]]
[[Category: Nowotny M]]
[[Category: Szczepanowski RH]]
[[Category: West SC]]
[[Category: Wyatt HDM]]
[[Category: De Sanctis D]]