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.

2r56

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 11:30, 5 September 2018

Crystal Structure of a Recombinant IgE Fab Fragment in Complex with Bovine Beta-Lactoglobulin Allergen

Structural highlights

2r56 is a 6 chain structure with sequence from Bovin and Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Gene:	LGB (BOVIN)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[LACB_BOVIN] Primary component of whey, it binds retinol and is probably involved in the transport of that molecule.

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

Allergies are caused by the immune reaction to commonly harmless proteins, allergens. This reaction is typified by immunoglobulin E (IgE) antibodies. We report the crystal structure of an IgE Fab fragment in complex with beta-lactoglobulin (BLG), one of the major allergens of bovine milk. The solved structure shows how two IgE/Fab molecules bind the dimeric BLG. The epitope of BLG consists of six different short fragments of the polypeptide chain, which are located especially in the beta strands, covering a flat area on the allergen surface. All six CDR (complementary-determining region) loops of the IgE Fab participate in the binding of BLG. The light chain CDR loops are responsible for the binding of the flat beta sheet region of BLG. The IgE epitope is different from common IgG epitopes that are normally located in the exposed loop regions of antigens and observed also in the two recently determined allergen-IgG complexes.

Molecular interactions between a recombinant IgE antibody and the beta-lactoglobulin allergen.,Niemi M, Jylha S, Laukkanen ML, Soderlund H, Makinen-Kiljunen S, Kallio JM, Hakulinen N, Haahtela T, Takkinen K, Rouvinen J Structure. 2007 Nov;15(11):1413-21. PMID:17997967^[1]

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

References

↑ Niemi M, Jylha S, Laukkanen ML, Soderlund H, Makinen-Kiljunen S, Kallio JM, Hakulinen N, Haahtela T, Takkinen K, Rouvinen J. Molecular interactions between a recombinant IgE antibody and the beta-lactoglobulin allergen. Structure. 2007 Nov;15(11):1413-21. PMID:17997967 doi:10.1016/j.str.2007.09.012

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/2r56"

@@ Line 1: / Line 1: @@
 ==Crystal Structure of a Recombinant IgE Fab Fragment in Complex with Bovine Beta-Lactoglobulin Allergen==
 <StructureSection load='2r56' size='340' side='right' caption='[[2r56]], [[Resolution|resolution]] 2.80&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=LMT:DODECYL-BETA-D-MALTOSIDE'>LMT</scene></td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">LGB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9913 BOVIN])</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=2r56 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2r56 OCA], [http://pdbe.org/2r56 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2r56 RCSB], [http://www.ebi.ac.uk/pdbsum/2r56 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=2r56 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2r56 OCA], [http://pdbe.org/2r56 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2r56 RCSB], [http://www.ebi.ac.uk/pdbsum/2r56 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2r56 ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 13: / Line 14: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/r5/2r56_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/r5/2r56_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
@@ Line 30: / Line 31: @@
 ==See Also==
-*[[Antibody|Antibody]]
+*[[Antibody 3D structures|Antibody 3D structures]]
 *[[Beta-lactoglobulin|Beta-lactoglobulin]]
 == References ==
@@ Line 50: / Line 51: @@
 [[Category: Lipocalin]]
 [[Category: Milk protein]]
+[[Category: Polymorphism]]
 [[Category: Retinol-binding]]
 [[Category: Secreted]]
 [[Category: Transport]]

2r56

From Proteopedia

Revision as of 11:30, 5 September 2018

Crystal Structure of a Recombinant IgE Fab Fragment in Complex with Bovine Beta-Lactoglobulin Allergen

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