This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

1bb6

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 11:14, 22 November 2017

LYSOZYME COMPLEX WITH 4-METHYL-UMBELLIFERYL CHITOTRIOSE

Structural highlights

1bb6 is a 1 chain structure with sequence from Oncorhynchus mykiss. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Activity:	Lysozyme, with EC number 3.2.1.17
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[LYSC2_ONCMY] 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 antibacterial activity against the Gram positive bacterium P.citreus. Has no antibacterial activity against the Gram negative bacteria E.coli and Y.ruckeri. Does not have hemolytic activity against trout erythrocytes.^[1]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Two complexes between rainbow trout lysozyme (RBTL) and 4-methylumbelliferyl chitobioside, 4MeU-(GlcNAc)2, and chitotrioside, 4MeU-(GlcNAc)3, were produced by co-crystallization and soaking, respectively, and the crystal structures were solved at 2.0 A resolution. The results show that 4-MeU-(GlcNAc)3 binds in subsites A-D and that 4-MeU-(GlcNAc)2 binds in subsites B-D in the active-site cleft of RBTL. This agrees well with earlier crystallographic studies on the binding of oligosaccharides of chitin to RBTL, which showed that (GlcNAc)3 binds to sites B-D in RBTL and not to A-C as seen in the human and turkey egg-white lysozymes. For both complexes the 4-MeU moiety in site D has diffuse electron density and is flexible, as it is only bound to water molecules and not to the protein. Since no electron density was observed in site E, the solved structures give views of nonproductive enzyme-substrate complexes.

Structural studies on the binding of 4-methylumbelliferone glycosides of chitin to rainbow trout lysozyme.,Vollan VB, Hough E, Karlsen S Acta Crystallogr D Biol Crystallogr. 1999 Jan;55(Pt 1):60-6. Epub 1999 Jan, 1. PMID:10089395^[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Fernandes JM, Kemp GD, Smith VJ. Two novel muramidases from skin mucosa of rainbow trout (Oncorhynchus mykiss). Comp Biochem Physiol B Biochem Mol Biol. 2004 May;138(1):53-64. PMID:15142536 doi:http://dx.doi.org/10.1016/j.cbpc.2004.02.004
↑ Vollan VB, Hough E, Karlsen S. Structural studies on the binding of 4-methylumbelliferone glycosides of chitin to rainbow trout lysozyme. Acta Crystallogr D Biol Crystallogr. 1999 Jan;55(Pt 1):60-6. Epub 1999 Jan, 1. PMID:10089395 doi:10.1107/S0907444998006623

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1bb6"

@@ Line 1: / Line 1: @@
 ==LYSOZYME COMPLEX WITH 4-METHYL-UMBELLIFERYL CHITOTRIOSE==
 <StructureSection load='1bb6' size='340' side='right' caption='[[1bb6]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
@@ Line 5: / Line 6: @@
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=UMG:METHYL-UMBELLIFERTL-N-ACETYL-CHITOTRIOSE'>UMG</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'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1bb6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bb6 OCA], [http://pdbe.org/1bb6 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1bb6 RCSB], [http://www.ebi.ac.uk/pdbsum/1bb6 PDBsum]</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=1bb6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bb6 OCA], [http://pdbe.org/1bb6 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1bb6 RCSB], [http://www.ebi.ac.uk/pdbsum/1bb6 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1bb6 ProSAT]</span></td></tr>
 </table>
 == Function ==

1bb6

From Proteopedia

Revision as of 11:14, 22 November 2017

LYSOZYME COMPLEX WITH 4-METHYL-UMBELLIFERYL CHITOTRIOSE

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox