3FN3: Dimeric Structure Of Pd-L1
reference: A dimeric structure of PD-L1: functional units or evolutionary relics?, Chen Y, Liu P, Gao F, Cheng H, Qi J, Gao GF, Protein Cell. 2010 Feb;1(2):153-60. Epub 2010 Feb 6. PMID: 21203985

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