1mlc

From Proteopedia

(Difference between revisions)

Revision as of 09:27, 5 May 2021

MONOCLONAL ANTIBODY FAB D44.1 RAISED AGAINST CHICKEN EGG-WHITE LYSOZYME COMPLEXED WITH LYSOZYME

Structural highlights

1mlc is a 6 chain structure with sequence from Chick and Lk3 transgenic mice. The April 2011 RCSB PDB Molecule of the Month feature on Nanobodies by David Goodsell is 10.2210/rcsb_pdb/mom_2011_4. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
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 three-dimensional structures of the free and antigen-complexed Fabs from the mouse monoclonal anti-hen egg white lysozyme antibody D44.1 have been solved and refined by X-ray crystallographic techniques. The crystals of the free and lysozyme-bound Fabs were grown under identical conditions and their X-ray diffraction data were collected to 2.1 and 2.5 A, respectively. Two molecules of the Fab-lysozyme complex in the asymmetric unit of the crystals show nearly identical conformations and thus confirm the essential structural features of the antigen-antibody interface. Three buried water molecules enhance the surface complementarity at the interface and provide hydrogen bonds to stabilize the complex. Two hydrophobic buried holes are present at the interface which, although large enough to accommodate solvent molecules, are void. The combining site residues of the complexed FabD44.1 exhibit reduced temperature factors compared with those of the free Fab. Furthermore, small perturbations in atomic positions and rearrangements of side-chains at the combining site, and a relative rearrangement of the variable domains of the light (VL) and the heavy (VH) chains, detail a Fab accommodation of the bound lysozyme. The amino acid sequence of the VH domain, as well as the epitope of lysozyme recognized by D44.1 are very close to those previously reported for the monoclonal antibody HyHEL-5. A feature central to the FabD44.1 and FabHyHEL-5 complexes with lysozyme are three salt bridges between VH glutamate residues 35 and 50 and lysozyme arginine residues 45 and 68. The presence of the three salt bridges in the D44.1-lysozyme interface indicates that these bonds are not responsible for the 1000-fold increase in affinity for lysozyme that HyHEL-5 exhibits relative to D44.1.

Three-dimensional structures of the free and the antigen-complexed Fab from monoclonal anti-lysozyme antibody D44.1.,Braden BC, Souchon H, Eisele JL, Bentley GA, Bhat TN, Navaza J, Poljak RJ J Mol Biol. 1994 Nov 4;243(4):767-81. PMID:7966295^[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
↑ Braden BC, Souchon H, Eisele JL, Bentley GA, Bhat TN, Navaza J, Poljak RJ. Three-dimensional structures of the free and the antigen-complexed Fab from monoclonal anti-lysozyme antibody D44.1. J Mol Biol. 1994 Nov 4;243(4):767-81. PMID:7966295

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/1mlc"

@@ Line 3: / Line 3: @@
 <StructureSection load='1mlc' size='340' side='right'caption='[[1mlc]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1mlc]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Chick Chick] and [http://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. The April 2011 RCSB PDB [http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Nanobodies''  by David Goodsell is [http://dx.doi.org/10.2210/rcsb_pdb/mom_2011_4 10.2210/rcsb_pdb/mom_2011_4]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1MLC OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1MLC FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1mlc]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Chick Chick] and [https://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. The April 2011 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Nanobodies''  by David Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2011_4 10.2210/rcsb_pdb/mom_2011_4]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1MLC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1MLC FirstGlance]. <br>
-</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=1mlc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1mlc OCA], [http://pdbe.org/1mlc PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1mlc RCSB], [http://www.ebi.ac.uk/pdbsum/1mlc PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1mlc ProSAT]</span></td></tr>
+</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=1mlc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1mlc OCA], [https://pdbe.org/1mlc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1mlc RCSB], [https://www.ebi.ac.uk/pdbsum/1mlc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1mlc ProSAT]</span></td></tr>
 </table>
 == 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>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]

1mlc

From Proteopedia

Revision as of 09:27, 5 May 2021

MONOCLONAL ANTIBODY FAB D44.1 RAISED AGAINST CHICKEN EGG-WHITE LYSOZYME COMPLEXED WITH LYSOZYME

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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