7beb: Difference between revisions
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==Unusual structural features in the adduct of dirhodium tetraacetate with lysozyme (4)== | ==Unusual structural features in the adduct of dirhodium tetraacetate with lysozyme (4)== | ||
<StructureSection load='7beb' size='340' side='right'caption='[[7beb]]' scene=''> | <StructureSection load='7beb' size='340' side='right'caption='[[7beb]], [[Resolution|resolution]] 1.32Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7BEB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7BEB FirstGlance]. <br> | <table><tr><td colspan='2'>[[7beb]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7BEB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7BEB FirstGlance]. <br> | ||
</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=7beb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7beb OCA], [https://pdbe.org/7beb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7beb RCSB], [https://www.ebi.ac.uk/pdbsum/7beb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7beb ProSAT]</span></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]] 1.32Å</td></tr> | ||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=NO3:NITRATE+ION'>NO3</scene>, <scene name='pdbligand=RH:RHODIUM'>RH</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=7beb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7beb OCA], [https://pdbe.org/7beb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7beb RCSB], [https://www.ebi.ac.uk/pdbsum/7beb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7beb ProSAT]</span></td></tr> | |||
</table> | </table> | ||
== Function == | |||
[https://www.uniprot.org/uniprot/LYSC_CHICK LYSC_CHICK] Lysozymes have primarily a bacteriolytic function; those in tissues and body fluids are associated with the monocyte-macrophage system and enhance the activity of immunoagents. Has bacteriolytic activity against M.luteus.<ref>PMID:22044478</ref> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The structures of the adducts formed upon reaction of the cytotoxic paddlewheel dirhodium complex [Rh2(mu-O2CCH3)4] with the model protein hen egg white lysozyme (HEWL) under different experimental conditions are reported. Results indicate that [Rh2(mu-O2CCH3)4] extensively reacts with HEWL:it in part breaks down, at variance with what happens in reactions with other proteins. A Rh center coordinates the side chains of Arg14 and His15. Dimeric Rh-Rh units with Rh-Rh distances between 2.3 and 2.5 A are bound to the side chains of Asp18, Asp101, Asn93, and Lys96, while a dirhodium unit with a Rh-Rh distance of 3.2-3.4 A binds the C-terminal carboxylate and the side chain of Lys13 at the interface between two symmetry-related molecules. An additional monometallic fragment binds the side chain of Lys33. These data, which are supported by replicated structural determinations, shed light on the reactivity of dirhodium tetracarboxylates with proteins, providing useful information for the design of new Rh-containing biomaterials with an array of potential applications in the field of catalysis or of medicinal chemistry and valuable insight into the mechanism of action of these potential anticancer agents. | |||
Unusual Structural Features in the Adduct of Dirhodium Tetraacetate with Lysozyme.,Loreto D, Ferraro G, Merlino A Int J Mol Sci. 2021 Feb 2;22(3). pii: ijms22031496. doi: 10.3390/ijms22031496. PMID:33540880<ref>PMID:33540880</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 7beb" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Lysozyme 3D structures|Lysozyme 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Gallus gallus]] | |||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
[[Category: Ferraro G]] | [[Category: Ferraro G]] | ||
[[Category: Loreto D]] | [[Category: Loreto D]] | ||
[[Category: Merlino A]] | [[Category: Merlino A]] | ||
Revision as of 15:26, 1 February 2024
Unusual structural features in the adduct of dirhodium tetraacetate with lysozyme (4)Unusual structural features in the adduct of dirhodium tetraacetate with lysozyme (4)
Structural highlights
FunctionLYSC_CHICK Lysozymes have primarily a bacteriolytic function; those in tissues and body fluids are associated with the monocyte-macrophage system and enhance the activity of immunoagents. Has bacteriolytic activity against M.luteus.[1] Publication Abstract from PubMedThe structures of the adducts formed upon reaction of the cytotoxic paddlewheel dirhodium complex [Rh2(mu-O2CCH3)4] with the model protein hen egg white lysozyme (HEWL) under different experimental conditions are reported. Results indicate that [Rh2(mu-O2CCH3)4] extensively reacts with HEWL:it in part breaks down, at variance with what happens in reactions with other proteins. A Rh center coordinates the side chains of Arg14 and His15. Dimeric Rh-Rh units with Rh-Rh distances between 2.3 and 2.5 A are bound to the side chains of Asp18, Asp101, Asn93, and Lys96, while a dirhodium unit with a Rh-Rh distance of 3.2-3.4 A binds the C-terminal carboxylate and the side chain of Lys13 at the interface between two symmetry-related molecules. An additional monometallic fragment binds the side chain of Lys33. These data, which are supported by replicated structural determinations, shed light on the reactivity of dirhodium tetracarboxylates with proteins, providing useful information for the design of new Rh-containing biomaterials with an array of potential applications in the field of catalysis or of medicinal chemistry and valuable insight into the mechanism of action of these potential anticancer agents. Unusual Structural Features in the Adduct of Dirhodium Tetraacetate with Lysozyme.,Loreto D, Ferraro G, Merlino A Int J Mol Sci. 2021 Feb 2;22(3). pii: ijms22031496. doi: 10.3390/ijms22031496. PMID:33540880[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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