1FYR:
reference: Dimer formation through domain swapping in the crystal structure of the Grb2-SH2-Ac-pYVNV complex., Schiering N, Casale E, Caccia P, Giordano P, Battistini C, Biochemistry 2000 Nov 7;39(44):13376-82. PMID: 11063574

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