TY - JOUR AU - TI - An engineered lipocalin specific for CTLA-4 reveals a combining site with structural and conformational features similar to antibodies JF - Proceedings of the National Academy of Sciences DO - 10.1073/pnas.0813399106 DA - 2009-05-19 UR - https://www.deepdyve.com/lp/unpaywall/an-engineered-lipocalin-specific-for-ctla-4-reveals-a-combining-site-9F0JOP0xqF DP - DeepDyve ER -