2iff

From Proteopedia

(Difference between revisions)

Revision as of 07:45, 8 April 2020

STRUCTURE OF AN ANTIBODY-LYSOZYME COMPLEX: EFFECT OF A CONSERVATIVE MUTATION

Structural highlights

2iff is a 3 chain structure with sequence from Chick and Lk3 transgenic mice. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
NonStd Res:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

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]

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

The structure of the complex between the Fab HyHEL-5 and chicken lysozyme revealed a large interface region containing 23 lysozyme and 28 Fab residues. Arg68 of the lysozyme is centrally placed in this interface and theoretical studies together with binding assays of this Fab to different avian lysozymes have previously shown that this arginine residue is an important contributor to the binding. The Arg68-->Lys mutant binds 10(3) times less well to the HyHEL-5 Fab. We have examined the refined crystal structure of the complex of this mutant lysozyme with the Fab. No global changes occur, but there is an introduction of a new water molecule into the interface that mediates the hydrogen bonding interactions between the lysine and residues on the Fab. These data are compared with the effects of similar changes on the inhibition of serine proteases such as trypsin where the energetic effects of this substitution are small.

Structure of an antibody-lysozyme complex unexpected effect of conservative mutation.,Chacko S, Silverton E, Kam-Morgan L, Smith-Gill S, Cohen G, Davies D J Mol Biol. 1995 Jan 20;245(3):261-74. PMID:7531245^[2]

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

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
↑ Chacko S, Silverton E, Kam-Morgan L, Smith-Gill S, Cohen G, Davies D. Structure of an antibody-lysozyme complex unexpected effect of conservative mutation. J Mol Biol. 1995 Jan 20;245(3):261-74. PMID:7531245

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/2iff"

Categories: Chick | Large Structures | Lk3 transgenic mice | Chacko, S | Davies, D R

@@ Line 1: / Line 1: @@
 ==STRUCTURE OF AN ANTIBODY-LYSOZYME COMPLEX: EFFECT OF A CONSERVATIVE MUTATION==
-<StructureSection load='2iff' size='340' side='right' caption='[[2iff]], [[Resolution|resolution]] 2.65&Aring;' scene=''>
+<StructureSection load='2iff' size='340' side='right'caption='[[2iff]], [[Resolution|resolution]] 2.65&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2iff]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Chick Chick] and [http://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2IFF OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2IFF FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2iff]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Chick Chick] and [http://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2IFF OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=2IFF FirstGlance]. <br>
 </td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=PGA:2-PHOSPHOGLYCOLIC+ACID'>PGA</scene></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=2iff FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2iff OCA], [http://pdbe.org/2iff PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2iff RCSB], [http://www.ebi.ac.uk/pdbsum/2iff PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2iff ProSAT]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=2iff FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2iff OCA], [http://pdbe.org/2iff PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2iff RCSB], [http://www.ebi.ac.uk/pdbsum/2iff PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2iff ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 37: / Line 37: @@
 </StructureSection>
 [[Category: Chick]]
+[[Category: Large Structures]]
 [[Category: Lk3 transgenic mice]]
 [[Category: Chacko, S]]
 [[Category: Davies, D R]]

2iff

From Proteopedia

Revision as of 07:45, 8 April 2020

STRUCTURE OF AN ANTIBODY-LYSOZYME COMPLEX: EFFECT OF A CONSERVATIVE MUTATION

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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