Reduction of Nonspecificity Motifs in Synthetic Antibody Libraries.
Reduction of Nonspecificity Motifs in Synthetic Antibody Libraries.
复制标题
DOI:
10.1016/j.jmb.2017.11.008
复制
发表时间:
2018-01-05
影响因子:
5.6
通讯作者:
Wittrup KD
中科院分区:
文献类型:
--
作者:
Kelly RL;Le D;Zhao J;Wittrup KD
Successful antibody development requires both functional binding and desirable biophysical characteristics. In the current study we analyze the causes of one hurdle to clinical development, off-target reactivity or nonspecificity. We used a high-throughput nonspecificity assay to isolate panels of nonspecific antibodies from two synthetic scFv libraries expressed on the surface of yeast, identifying both individual amino acids and motifs within the complementarity determining regions (CDRs) which contribute to the phenotype. We find enrichment of glycine, valine, and arginine as both individual amino acids and as a part of motifs, and additionally enrichment of motifs containing tryptophan. Insertion of any of these motifs into the CDR H3 of a “clean” antibody increased its nonspecificity, with greatest increases in antibodies containing Trp or Val motifs. We next applied these rules to the creation of a synthetic diversity library based on natural frameworks with significantly decreased incorporation of such motifs and demonstrated its ability to isolate binders to a wide panel of antigens. This work both provides a greater understanding of the drivers of nonspecificity and provides design rules to increase efficiency in the isolation of antibodies with drug-like properties.
登录
查看更多内容
影响因子:
2.4
作者:
Igawa, T.;Tsunoda, H.;Hattori, K.
通讯作者:
Hattori, K.
影响因子:
--
作者:
Birtalan, Sara;Fisher, Robert D.;Sidhu, Sachdev S.
通讯作者:
Sidhu, Sachdev S.
影响因子:
5.6
作者:
Robin, Gautier;Sato, Yoshiteru;Martineau, Pierre
通讯作者:
Martineau, Pierre
影响因子:
5.6
作者:
Birtalan, Sara;Zhang, Yingnan;Sidhu, Sachdev S.
通讯作者:
Sidhu, Sachdev S.
影响因子:
5.3
作者:
Hoetzel, Isidro;Theil, Frank-Peter;Kelley, Robert F.
通讯作者:
Kelley, Robert F.