Titratable Avidity Reduction Enhances Affinity Discrimination in Mammalian Cellular Selections of Yeast-Displayed Ligands.
Titratable Avidity Reduction Enhances Affinity Discrimination in Mammalian Cellular Selections of Yeast-Displayed Ligands.
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可滴定亲和力降低增强了酵母展示配体的哺乳动物细胞选择中的亲和力辨别力。
DOI:
10.1021/acscombsci.6b00191
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发表时间:
2017
影响因子:
--
通讯作者:
Hackel,BenjaminJ
中科院分区:
文献类型:
--
作者:
Stern,LawrenceA;Csizmar,CliffordM;Woldring,DanielR;Wagner,CarstonR;Hackel,BenjaminJ
Yeast surface display selections against mammalian cell monolayers have proven effective in isolating proteins with novel binding activity. Recent advances in this technique allow for the recovery of clones with even micromolar binding affinities. However, no efficient method has been shown for affinity-based selection in this context. This study demonstrates the effectiveness of titratable avidity reduction using dithiothreitol to achieve this goal. A series of epidermal growth factor receptor binding fibronectin domains with a range of affinities are used to quantitatively identify the number of ligands per yeast cell that yield the strongest selectivity between strong, moderate, and weak affinities. Notably, reduction of ligand display to 3,000–6,000 ligands per yeast cell of a 2 nM binder yields 16-fold better selectivity than that to a 17 nM binder. These lessons are applied to affinity maturation of an EpCAM-binding fibronectin population, yielding an enriched pool of ligands with significantly stronger affinity than that of an analogous pool sorted by standard cellular selection methods. Collectively, this study offers a facile approach for affinity selection of yeast-displayed ligands against full-length cellular targets and demonstrates the effectiveness of this method by generating EpCAM-binding ligands that are promising for further applications.
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影响因子:
5.6
作者:
Koide, Akiko;Wojcik, John;Gilbreth, Ryan N.;Hoey, Robert J.;Koide, Shohei
通讯作者:
Koide, Shohei
DOI:
10.1093/protein/gzs077
发表时间:
2013
期刊:
Protein engineering, design & selection : PEDS
影响因子:
--
作者:
Tillotson,BenjaminJ;deLarrinoa,IñigoF;Skinner,ColinA;Klavas,DerekM;Shusta,EricV
通讯作者:
Shusta,EricV
DOI:
10.1016/j.ymeth.2012.03.010
发表时间:
2013
期刊:
Methods (San Diego, Calif.)
影响因子:
--
作者:
Tillotson,BenjaminJ;Cho,YongKu;Shusta,EricV
通讯作者:
Shusta,EricV
影响因子:
11.2
作者:
Macarthur KM;Kao GD;Chandrasekaran S;Alonso-Basanta M;Chapman C;Lustig RA;Wileyto EP;Hahn SM;Dorsey JF
通讯作者:
Dorsey JF
影响因子:
56.9
作者:
BEAUDRY, AA;JOYCE, GF
通讯作者:
JOYCE, GF