engineered lipocalin specific for CTLA-4 reveals a combining site with structural and conformational features similar to antibodies
Proceedings of the National Academy of Sciences - PNAS, 2009-05, Vol.106 (20), p.8198-8203 [Peer Reviewed Journal]Copyright 1993-2008 National Academy of Sciences of the United States of America ;Copyright National Academy of Sciences May 19, 2009 ;ISSN: 0027-8424 ;EISSN: 1091-6490 ;DOI: 10.1073/pnas.0813399106 ;PMID: 19416843
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