1lsp: Difference between revisions
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==THE CRYSTAL STRUCTURE OF A BULGECIN-INHIBITED G-TYPE LYSOZYME FROM THE EGG-WHITE OF THE AUSTRALIAN BLACK SWAN. A COMPARISON OF THE BINDING OF BULGECIN TO THREE MURAMIDASES== | |||
<StructureSection load='1lsp' size='340' side='right' caption='[[1lsp]], [[Resolution|resolution]] 2.45Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1lsp]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Cygnus_atratus Cygnus atratus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LSP OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1LSP FirstGlance]. <br> | |||
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BUL:BULGECIN+A'>BUL</scene><br> | |||
<tr><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><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1lsp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lsp OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1lsp RCSB], [http://www.ebi.ac.uk/pdbsum/1lsp PDBsum]</span></td></tr> | |||
<table> | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ls/1lsp_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Bulgecin A, a bacterial metabolite, has been shown to bind in the active-site groove of the chicken-type lysozyme from the rainbow trout (RBTL) and in the lysozyme-like C-terminal domain, of a soluble lytic transglycosylase (C-SLT) from Escherichia coli. These enzymes are muramidases that cleave the glycosidic bonds in the glycan strands of the murein polymer. Here we report the crystal structure of a complex between the goose-type lysozyme from the egg white of the Australian black swan (SEWL) and bulgecin A at 2.45 A resolution. As is the case for the C-SLT/bulgecin and RBTL/bulgecin complexes, the ligand binds with the N-acetylglucosamine ring in subsite C and the proline moiety in site D where it interacts with the catalytic glutamic acid. The taurine residue interacts with the beta-sheet region. Comparisons of the three buigecin complexes show that the inhibitor has the same binding mode to the muramidases with similar protein-ligand interactions, particularly for SEWL and RBTL. From our results, it seems likely that bulgecin, in general, inhibits enzymes with lysozyme-like domains and thus might represent a novel class of natural antibiotics that act on murein-degrading rather than murein-synthesizing enzymes. | |||
Structure of a bulgecin-inhibited g-type lysozyme from the egg white of the Australian black swan. A comparison of the binding of bulgecin to three muramidases.,Karlsen S, Hough E, Rao ZH, Isaacs NW Acta Crystallogr D Biol Crystallogr. 1996 Jan 1;52(Pt 1):105-14. PMID:15299731<ref>PMID:15299731</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
==See Also== | ==See Also== | ||
*[[Lysozyme 3D structures|Lysozyme 3D structures]] | *[[Lysozyme 3D structures|Lysozyme 3D structures]] | ||
== References == | |||
== | <references/> | ||
__TOC__ | |||
</StructureSection> | |||
[[Category: Cygnus atratus]] | [[Category: Cygnus atratus]] | ||
[[Category: Lysozyme]] | [[Category: Lysozyme]] | ||
Revision as of 05:37, 3 October 2014
THE CRYSTAL STRUCTURE OF A BULGECIN-INHIBITED G-TYPE LYSOZYME FROM THE EGG-WHITE OF THE AUSTRALIAN BLACK SWAN. A COMPARISON OF THE BINDING OF BULGECIN TO THREE MURAMIDASES
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