1fp5

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1fp5, resolution 2.30Å ()
Related: 1f6a
Resources: FirstGlance, OCA, PDBsum, RCSB
Coordinates: save as pdb, mmCIF, xml



Contents

CRYSTAL STRUCTURE ANALYSIS OF THE HUMAN IGE-FC CEPSILON3-CEPSILON4 FRAGMENT.

Publication Abstract from PubMed

IgE antibodies mediate antiparasitic immune responses and the inflammatory reactions of allergy and asthma. We have solved the crystal structure of the human IgE-Fc Cepsilon3-Cepsilon4 domains to 2.3 A resolution. The structure reveals a large rearrangement of the N-terminal Cepsilon3 domains when compared to related IgG-Fc structures and to the IgE-Fc bound to its high-affinity receptor, FcepsilonRI. The IgE-Fc adopts a more compact, closed configuration that places the two Cepsilon3 domains in close proximity, decreases the size of the interdomain cavity, and obscures part of the FcepsilonRI binding site. IgE-Fc conformational flexibility may be required for interactions with two distinct IgE receptors, and the structure suggests strategies for the design of therapeutic compounds for the treatment of IgE-mediated diseases.

Structure of the human IgE-Fc C epsilon 3-C epsilon 4 reveals conformational flexibility in the antibody effector domains., Wurzburg BA, Garman SC, Jardetzky TS, Immunity. 2000 Sep;13(3):375-85. PMID:11021535

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

About this Structure

1fp5 is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA.

See Also

Reference

  • Wurzburg BA, Garman SC, Jardetzky TS. Structure of the human IgE-Fc C epsilon 3-C epsilon 4 reveals conformational flexibility in the antibody effector domains. Immunity. 2000 Sep;13(3):375-85. PMID:11021535

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