Accounting for small variations in the tracrRNA sequence improves sgRNA activity predictions for CRISPR screening.
Accounting for small variations in the tracrRNA sequence improves sgRNA activity predictions for CRISPR screening.
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DOI:
10.1038/s41467-022-33024-2
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发表时间:
2022-09-06
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
--
作者:
CRISPR technology is a powerful tool for studying genome function. To aid in picking sgRNAs that have maximal efficacy against a target of interest from many possible options, several groups have developed models that predict sgRNA on-target activity. Although multiple tracrRNA variants are commonly used for screening, no existing models account for this feature when nominating sgRNAs. Here we develop an on-target model, Rule Set 3, that makes optimal predictions for multiple tracrRNA variants. We validate Rule Set 3 on a new dataset of sgRNAs tiling essential and non-essential genes, demonstrating substantial improvement over prior prediction models. By analyzing the differences in sgRNA activity between tracrRNA variants, we show that Pol III transcription termination is a strong determinant of sgRNA activity. We expect these results to improve the performance of CRISPR screening and inform future research on tracrRNA engineering and sgRNA modeling. Existing methods for generating sgRNA predictions do not account for the tracrRNA sequence. Here the authors report an on-target model, Rule Set 3, to generate optimal predictions for multiple tracrRNA variants, and validate this on a new dataset of sgRNAs showing improvement over prior prediction models.
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影响因子:
12.3
作者:
Chuai G;Ma H;Yan J;Chen M;Hong N;Xue D;Zhou C;Zhu C;Chen K;Duan B;Gu F;Qu S;Huang D;Wei J;Liu Q
通讯作者:
Liu Q
影响因子:
12.3
作者:
Dang Y;Jia G;Choi J;Ma H;Anaya E;Ye C;Shankar P;Wu H
通讯作者:
Wu H
影响因子:
46.9
作者:
Doench JG;Fusi N;Sullender M;Hegde M;Vaimberg EW;Donovan KF;Smith I;Tothova Z;Wilen C;Orchard R;Virgin HW;Listgarten J;Root DE
通讯作者:
Root DE
DOI:
10.1093/bioinformatics/btp163
发表时间:
2009-06-01
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Cock PJ;Antao T;Chang JT;Chapman BA;Cox CJ;Dalke A;Friedberg I;Hamelryck T;Kauff F;Wilczynski B;de Hoon MJ
通讯作者:
de Hoon MJ
影响因子:
46.9
作者:
Doench, John G.;Hartenian, Ella;Graham, Daniel B.;Tothova, Zuzana;Hegde, Mudra;Smith, Ian;Sullender, Meagan;Ebert, Benjamin L.;Xavier, Ramnik J.;Root, David E.
通讯作者:
Root, David E.