4ngv: Difference between revisions
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==Previously de-ionized HEW lysozyme batch crystallized in 0.5 M YbCl3== | |||
<StructureSection load='4ngv' size='340' side='right'caption='[[4ngv]], [[Resolution|resolution]] 1.64Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[4ngv]] 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=4NGV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4NGV 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]] 1.64Å</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=YB:YTTERBIUM+(III)+ION'>YB</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=4ngv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4ngv OCA], [https://pdbe.org/4ngv PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4ngv RCSB], [https://www.ebi.ac.uk/pdbsum/4ngv PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4ngv ProSAT]</span></td></tr> | |||
</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 adsorption of Rb(+), Cs(+), Mn(2+), Co(2+) and Yb(3+) onto the positively charged hen egg-white lysozyme (HEWL) has been investigated by solving 13 X-ray structures of HEWL crystallized with their chlorides and by applying electrospray ionization mass spectrometry (ESI-MS) first to dissolved protein crystals and then to the protein in buffered salt solutions. The number of bound cations follows the order Cs(+) < Mn(2+) approximately Co(2+) < Yb(3+) at 293 K. HEWL binds less Rb(+) (qtot = 0.7) than Cs(+) (qtot = 3.9) at 100 K. Crystal flash-cooling drastically increases the binding of Cs(+), but poorly affects that of Yb(3+), suggesting different interactions. The addition of glycerol increases the number of bound Yb(3+) cations, but only slightly increases that of Rb(+). HEWL titrations with the same chlorides, followed by ESI-MS analysis, show that only about 10% of HEWL binds Cs(+) and about 40% binds 1-2 Yb(3+) cations, while the highest binding reaches 60-70% for protein binding 1-3 Mn(2+) or Co(2+) cations. The binding sites identified by X-ray crystallography show that the monovalent Rb(+) and Cs(+) preferentially bind to carbonyl groups, whereas the multivalent Mn(2+), Co(2+) and Yb(3+) interact with carboxylic groups. This work elucidates the basis of the effect of the Hofmeister cation series on protein solubility. | |||
Weak protein-cationic co-ion interactions addressed by X-ray crystallography and mass spectrometry.,Benas P, Auzeil N, Legrand L, Brachet F, Regazzetti A, Ries-Kautt M Acta Crystallogr D Biol Crystallogr. 2014 Aug 1;70(Pt 8):2217-31. doi:, 10.1107/S1399004714011304. Epub 2014 Jul 25. PMID:25084340<ref>PMID:25084340</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 4ngv" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Lysozyme 3D structures|Lysozyme 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Gallus gallus]] | |||
[[Category: Large Structures]] | |||
[[Category: Benas P]] | |||
[[Category: Legrand L]] | |||
[[Category: Ries-Kautt M]] | |||
Latest revision as of 19:56, 20 September 2023
Previously de-ionized HEW lysozyme batch crystallized in 0.5 M YbCl3Previously de-ionized HEW lysozyme batch crystallized in 0.5 M YbCl3
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 adsorption of Rb(+), Cs(+), Mn(2+), Co(2+) and Yb(3+) onto the positively charged hen egg-white lysozyme (HEWL) has been investigated by solving 13 X-ray structures of HEWL crystallized with their chlorides and by applying electrospray ionization mass spectrometry (ESI-MS) first to dissolved protein crystals and then to the protein in buffered salt solutions. The number of bound cations follows the order Cs(+) < Mn(2+) approximately Co(2+) < Yb(3+) at 293 K. HEWL binds less Rb(+) (qtot = 0.7) than Cs(+) (qtot = 3.9) at 100 K. Crystal flash-cooling drastically increases the binding of Cs(+), but poorly affects that of Yb(3+), suggesting different interactions. The addition of glycerol increases the number of bound Yb(3+) cations, but only slightly increases that of Rb(+). HEWL titrations with the same chlorides, followed by ESI-MS analysis, show that only about 10% of HEWL binds Cs(+) and about 40% binds 1-2 Yb(3+) cations, while the highest binding reaches 60-70% for protein binding 1-3 Mn(2+) or Co(2+) cations. The binding sites identified by X-ray crystallography show that the monovalent Rb(+) and Cs(+) preferentially bind to carbonyl groups, whereas the multivalent Mn(2+), Co(2+) and Yb(3+) interact with carboxylic groups. This work elucidates the basis of the effect of the Hofmeister cation series on protein solubility. Weak protein-cationic co-ion interactions addressed by X-ray crystallography and mass spectrometry.,Benas P, Auzeil N, Legrand L, Brachet F, Regazzetti A, Ries-Kautt M Acta Crystallogr D Biol Crystallogr. 2014 Aug 1;70(Pt 8):2217-31. doi:, 10.1107/S1399004714011304. Epub 2014 Jul 25. PMID:25084340[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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