1FP5: Crystal Structure Analysis Of The Human Ige-Fc Cepsilon3- Cepsilon4 Fragment.
reference: 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

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