View source for 7o89


==sulerythrin without metals (apo-state)==
<StructureSection load='7o89' size='340' side='right'caption='[[7o89]], [[Resolution|resolution]] 1.16&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7o89]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Sulfurisphaera_tokodaii_str._7 Sulfurisphaera tokodaii str. 7]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7O89 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7O89 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]] 1.16&#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=7o89 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7o89 OCA], [https://pdbe.org/7o89 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7o89 RCSB], [https://www.ebi.ac.uk/pdbsum/7o89 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7o89 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/F9VPE5_SULTO F9VPE5_SULTO] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Bimetallic active sites in enzymes catalyze small-molecule conversions that are among the top 10 challenges in chemistry. As different metal cofactors are typically incorporated in varying protein scaffolds, it is demanding to disentangle the individual contributions of the metal and the protein matrix to the activity. Here, we compared the structure, properties, and hydrogen peroxide reactivity of four homobimetallic cofactors (Mn(II)2, Fe(II)2, Co(II)2, Ni(II)2) that were reconstituted into a four-helix bundle protein. Reconstituted proteins were studied in solution and in crystals. All metals bind with high affinity and yield similar cofactor structures. Cofactor variants react with H2O2 but differ in their turnover rates, accumulated oxidation states, and trapped peroxide-bound intermediates. Varying the metal composition thus creates opportunities to tune the reactivity of the bimetallic cofactor and to study and functionalize reactive species.

Bimetallic Mn, Fe, Co, and Ni Sites in a Four-Helix Bundle Protein: Metal Binding, Structure, and Peroxide Activation.,Jeoung JH, Runger S, Haumann M, Neumann B, Klemke F, Davis V, Fischer A, Dau H, Wollenberger U, Dobbek H Inorg Chem. 2021 Nov 10. doi: 10.1021/acs.inorgchem.1c01919. PMID:34757735<ref>PMID:34757735</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7o89" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Sulfurisphaera tokodaii str. 7]]
[[Category: Dobbek H]]
[[Category: Jeoung J-H]]