1LY2: Crystal Structure Of Unliganded Human Cd21 Scr1-Scr2 (Comple Receptor Type 2)
reference: The crystal structure of human CD21: Implications for Epstein-Barr virus and C3d binding., Prota AE, Sage DR, Stehle T, Fingeroth JD, Proc Natl Acad Sci U S A 2002 Aug 6;99(16):10641-6. PMID: 12122212

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