PFunkel: efficient, expansive, user-defined mutagenesis.
PFunkel: efficient, expansive, user-defined mutagenesis.
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Pfunkel:高效,膨胀,用户定义的诱变。
DOI:
10.1371/journal.pone.0052031
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发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Ostermeier M
中科院分区:
文献类型:
--
作者:
Firnberg E;Ostermeier M
We introduce PFunkel, a versatile method for extensive, researcher-defined DNA mutagenesis using a ssDNA or dsDNA template. Once the template DNA is prepared, the method can be completed in a single day in a single tube, and requires no intermediate DNA purification or sub-cloning. PFunkel can be used for site-directed mutagenesis at an efficiency approaching 100%. More importantly, PFunkel allows researchers the unparalleled ability to efficiently construct user-defined libraries. We demonstrate the creation of a library with site-saturation at four distal sites simultaneously at 70% efficiency. We also employ PFunkel to create a comprehensive codon mutagenesis library of the TEM-1 ß-lactamase gene. We designed this library to contain 18,081 members, one for each possible codon substitution in the gene (287 positions in TEM-1 x 63 possible codon substitutions). Deep sequencing revealed that ∼97% of the designed single codon substitutions are present in the library. From such a library we identified 18 previously unreported adaptive mutations that each confer resistance to the ß-lactamase inhibitor tazobactam. Three of these mutations confer resistance equal to or higher than that of the most resistant reported TEM-1 allele and have the potential to emerge clinically.
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DOI:
10.1073/pnas.86.7.2172
发表时间:
1989-04-01
影响因子:
11.1
作者:
CHUNG, CT;NIEMELA, SL;MILLER, RH
通讯作者:
MILLER, RH
影响因子:
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作者:
Denbigh, KG
通讯作者:
Denbigh, KG
影响因子:
2.4
作者:
Liu, Jia;Cropp, T. Ashton
通讯作者:
Cropp, T. Ashton
影响因子:
7
作者:
Giardine, B;Riemer, C;Nekrutenko, A
通讯作者:
Nekrutenko, A
DOI:
10.2174/1386207054867337
发表时间:
2005-09-01
影响因子:
1.8
作者:
Scholle, MD;Kehoe, JW;Kay, BK
通讯作者:
Kay, BK