9lyz: Difference between revisions

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[[Image:9lyz.png|left|200px]]
==X-RAY CRYSTALLOGRAPHY OF THE BINDING OF THE BACTERIAL CELL WALL TRISACCHARIDE NAM-NAG-NAM TO LYSOZYME==
<StructureSection load='9lyz' size='340' side='right' caption='[[9lyz]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[9lyz]] 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=9LYZ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=9LYZ FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=AMU:BETA-N-ACETYLMURAMIC+ACID'>AMU</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene><br>
<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[6lyz|6lyz]]</td></tr>
<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=9lyz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=9lyz OCA], [http://www.rcsb.org/pdb/explore.do?structureId=9lyz RCSB], [http://www.ebi.ac.uk/pdbsum/9lyz PDBsum]</span></td></tr>
<table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Hen egg white lysozyme was the first enzyme whose structure was determined by X-ray crystallography. The proposed mechanism based on this structure involves the distortion of the saccharide residue (2-acetamido-2-deoxy-D-muramic acid, NAM) in the natural substrate (an alternating beta (1 leads to 4) linked oligomer of 2-acetamido-2-deoxy-D-glucose (NAG) and NAM residues) bound to site D in the binding cleft. The importance of substrate distortion has prompted numerous enzymatic, chemical, theoretical, and physical studies, but there is little direct crystallographic evidence on the conformation of a NAM residue bound at site D. We now present the X-ray structure of the non-hydrolysed trisaccharide NAM-NAG-NAM bound in subsites B, C, D. Our interpretation of the 2.5-A resolution difference map does not involve distortion of this residue in site D. Comparison with the structure of the delta-lactone derived from tetra N-acetylchitotetraose (NAG)3NAL) bound to lysozyme suggests we may be looking at a Michaelis complex.


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X-ray crystallography of the binding of the bacterial cell wall trisaccharide NAM-NAG-NAM to lysozyme.,Kelly JA, Sielecki AR, Sykes BD, James MN, Phillips DC Nature. 1979 Dec 20-27;282(5741):875-8. PMID:514367<ref>PMID:514367</ref>
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===X-RAY CRYSTALLOGRAPHY OF THE BINDING OF THE BACTERIAL CELL WALL TRISACCHARIDE NAM-NAG-NAM TO LYSOZYME===
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>


 
==See Also==
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*[[Lysozyme 3D structures|Lysozyme 3D structures]]
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== References ==
(as it appears on PubMed at http://www.pubmed.gov), where 514367 is the PubMed ID number.
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</StructureSection>
 
==About this Structure==
[[9lyz]] 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=9LYZ OCA].
 
==Reference==
<ref group="xtra">PMID:000514367</ref><references group="xtra"/>
[[Category: Gallus gallus]]
[[Category: Gallus gallus]]
[[Category: Lysozyme]]
[[Category: Lysozyme]]
[[Category: James, M N.G.]]
[[Category: James, M N.G.]]
[[Category: Kelly, J A.]]
[[Category: Kelly, J A.]]