1ew3

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[[Image:1ew3.gif|left|200px]]
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{{STRUCTURE_1ew3| PDB=1ew3 | SCENE= }}
{{STRUCTURE_1ew3| PDB=1ew3 | SCENE= }}
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'''CRYSTAL STRUCTURE OF THE MAJOR HORSE ALLERGEN EQU C 1'''
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===CRYSTAL STRUCTURE OF THE MAJOR HORSE ALLERGEN EQU C 1===
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==Overview==
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The three-dimensional structure of the major horse allergen Equ c 1 has been determined at 2.3 A resolution by x-ray crystallography. Equ c 1 displays the typical fold of lipocalins, a beta-barrel flanked by a C-terminal alpha-helix. The space between the two beta-sheets of the barrel defines an internal cavity that could serve, as in other lipocalins, for the binding and transport of small hydrophobic ligands. Equ c 1 crystallizes in a novel dimeric form, which is distinct from that observed in other lipocalin dimers and corresponds to the functional form of the allergen. Binding studies of point mutants of the allergen with specific monoclonal antibodies raised in mouse and IgE serum from horse allergic patients allowed to identify putative B cell antigenic determinants. In addition, total inhibition of IgE serum recognition by a single specific monoclonal antibody revealed the restricted nature of the IgE binding target on the molecular surface of Equ c 1.
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(as it appears on PubMed at http://www.pubmed.gov), where 10787420 is the PubMed ID number.
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{{ABSTRACT_PUBMED_10787420}}
==About this Structure==
==About this Structure==
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[[Category: Beta barrel]]
[[Category: Beta barrel]]
[[Category: Lipocalin]]
[[Category: Lipocalin]]
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Revision as of 23:06, 30 June 2008

Image:1ew3.png

Template:STRUCTURE 1ew3

CRYSTAL STRUCTURE OF THE MAJOR HORSE ALLERGEN EQU C 1

Template:ABSTRACT PUBMED 10787420

About this Structure

1EW3 is a Single protein structure of sequence from Equus caballus. Full crystallographic information is available from OCA.

Reference

Crystal structure of the allergen Equ c 1. A dimeric lipocalin with restricted IgE-reactive epitopes., Lascombe MB, Gregoire C, Poncet P, Tavares GA, Rosinski-Chupin I, Rabillon J, Goubran-Botros H, Mazie JC, David B, Alzari PM, J Biol Chem. 2000 Jul 14;275(28):21572-7. PMID:10787420

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