6CPR: Crystal Structure Of 4-1bbl4-1bb Complex In C2 Space Group
reference: Crystal structures of the human 4-1BB receptor bound to its ligand 4-1BBL reveal covalent receptor dimerization as a potential signaling amplifier., Bitra A, Doukov T, Croft M, Zajonc DM, J Biol Chem. 2018 May 2. pii: RA118.003176. doi: 10.1074/jbc.RA118.003176. PMID: 29720398

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