4EZM:
reference: Crystal structure of IgE bound to its B-cell receptor CD23 reveals a mechanism of reciprocal allosteric inhibition with high affinity receptor Fc{varepsilon}RI., Dhaliwal B, Yuan D, Pang MO, Henry AJ, Cain K, Oxbrow A, Fabiane SM, Beavil AJ, McDonnell JM, Gould HJ, Sutton BJ, Proc Natl Acad Sci U S A. 2012 Jul 16. PMID: 22802656

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