Standardizing cassette‐based deep mutagenesis by Golden Gate assembly
Standardizing cassette‐based deep mutagenesis by Golden Gate assembly
复制标题
通过 Golden Gate 组装标准化基于盒的深度诱变
DOI:
10.1002/bit.28564
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发表时间:
2023
影响因子:
3.8
通讯作者:
Whitehead, Timothy A.
中科院分区:
文献类型:
--
作者:
Daffern, Nicolas;Francino‐Urdaniz, Irene M.;Baumer, Zachary T.;Whitehead, Timothy A.
Protocols for the construction of large, deeply mutagenized protein encoding libraries via Golden Gate assembly of synthetic DNA cassettes employ disparate, system‐specific methodology. Here we present a standardized Golden Gate method for building user‐defined libraries. We demonstrate that a 25 μL reaction, using 40 fmol of input DNA, can generate a library on the order of 1 × 106members and that reaction volume or input DNA concentration can be scaled up with no losses in transformation efficiency. Such libraries can be constructed from dsDNA cassettes generated either by degenerate oligonucleotides or oligo pools. We demonstrate its real‐world effectiveness by building custom, user‐defined libraries on the order of 104–107unique protein encoding variants for two orthogonal protein engineering systems. We include a detailed protocol and provide several general‐use destination vectors.
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