2DRU:
reference: Crystal Structure and Binding Properties of the CD2 and CD244 (2B4)-binding Protein, CD48., Evans EJ, Castro MA, O'brien R, Kearney A, Walsh H, Sparks LM, Tucknott MG, Davies EA, Carmo AM, van der Merwe PA, Stuart DI, Jones EY, Ladbury JE, Ikemizu S, Davis SJ, J Biol Chem. 2006 Sep 29;281(39):29309-20. Epub 2006 Jun 27. PMID: 16803907

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