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| | ==X-ray analysis of lysozyme in the absence of Arg== | | ==X-ray analysis of lysozyme in the absence of Arg== |
| - | <StructureSection load='3agg' size='340' side='right' caption='[[3agg]], [[Resolution|resolution]] 1.60Å' scene=''> | + | <StructureSection load='3agg' size='340' side='right'caption='[[3agg]], [[Resolution|resolution]] 1.60Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3agg]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3AGG OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3AGG FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3agg]] 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=3AGG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3AGG FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene></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]] 1.6Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3a34|3a34]], [[3agh|3agh]], [[3agi|3agi]]</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=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Lysozyme Lysozyme], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.17 3.2.1.17] </span></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=3agg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3agg OCA], [https://pdbe.org/3agg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3agg RCSB], [https://www.ebi.ac.uk/pdbsum/3agg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3agg ProSAT]</span></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3agg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3agg OCA], [http://pdbe.org/3agg PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3agg RCSB], [http://www.ebi.ac.uk/pdbsum/3agg PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3agg ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://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> | + | [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;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | </StructureSection> | | </StructureSection> |
| | [[Category: Gallus gallus]] | | [[Category: Gallus gallus]] |
| - | [[Category: Lysozyme]] | + | [[Category: Large Structures]] |
| - | [[Category: Baba, S]] | + | [[Category: Baba S]] |
| - | [[Category: Hasegawa, K]] | + | [[Category: Hasegawa K]] |
| - | [[Category: Ito, L]] | + | [[Category: Ito L]] |
| - | [[Category: Kumasaka, T]] | + | [[Category: Kumasaka T]] |
| - | [[Category: Shiraki, K]] | + | [[Category: Shiraki K]] |
| - | [[Category: Allergen]]
| + | |
| - | [[Category: Antimicrobial]]
| + | |
| - | [[Category: Arginine]]
| + | |
| - | [[Category: Bacteriolytic enzyme]]
| + | |
| - | [[Category: Disulfide bond]]
| + | |
| - | [[Category: Glycosidase]]
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| - | [[Category: Hydrolase]]
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| Structural highlights
Function
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.[1]
Publication Abstract from PubMed
While biotechnological applications of arginine (Arg) as a solution additive that prevents protein aggregation are increasing, the molecular mechanism of its effects remains unclear. In this study, we investigated the Arg-lysozyme complex by high-resolution crystallographic analysis. Three Arg molecules were observed to be in close proximity to aromatic amino acid residues of the protein surface, and their occupancies gradually increased with increasing Arg concentration. These interactions were mediated by electrostatic, hydrophobic and cation-pi interactions with the surface residues. The binding of Arg decreased the accessible surface area of aromatic residues by 40%, but increased that of charged residues by 10%. These changes might prevent intermolecular hydrophobic interactions by shielding hydrophobic regions of the lysozyme surface, resulting in an increase in protein solubility.
High-resolution X-ray analysis reveals binding of arginine to aromatic residues of lysozyme surface: implication of suppression of protein aggregation by arginine.,Ito L, Shiraki K, Matsuura T, Okumura M, Hasegawa K, Baba S, Yamaguchi H, Kumasaka T Protein Eng Des Sel. 2011 Mar;24(3):269-74. Epub 2010 Nov 17. PMID:21084280[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Maehashi K, Matano M, Irisawa T, Uchino M, Kashiwagi Y, Watanabe T. Molecular characterization of goose- and chicken-type lysozymes in emu (Dromaius novaehollandiae): evidence for extremely low lysozyme levels in emu egg white. Gene. 2012 Jan 15;492(1):244-9. doi: 10.1016/j.gene.2011.10.021. Epub 2011 Oct, 25. PMID:22044478 doi:10.1016/j.gene.2011.10.021
- ↑ Ito L, Shiraki K, Matsuura T, Okumura M, Hasegawa K, Baba S, Yamaguchi H, Kumasaka T. High-resolution X-ray analysis reveals binding of arginine to aromatic residues of lysozyme surface: implication of suppression of protein aggregation by arginine. Protein Eng Des Sel. 2011 Mar;24(3):269-74. Epub 2010 Nov 17. PMID:21084280 doi:10.1093/protein/gzq101
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