2Q8O:
reference: Structural basis for ligand-mediated mouse GITR activation., Zhou Z, Tone Y, Song X, Furuuchi K, Lear JD, Waldmann H, Tone M, Greene MI, Murali R, Proc Natl Acad Sci U S A. 2008 Jan 15;105(2):641-5. Epub 2008 Jan 4. PMID: 18178614

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