Massively Parallel Biophysical Analysis of CRISPR-Cas Complexes on Next Generation Sequencing Chips.
Massively Parallel Biophysical Analysis of CRISPR-Cas Complexes on Next Generation Sequencing Chips.
复制标题
DOI:
10.1016/j.cell.2017.05.044
复制
发表时间:
2017-06-29
期刊:
影响因子:
64.5
通讯作者:
Finkelstein IJ
中科院分区:
文献类型:
--
作者:
Jung C;Hawkins JA;Jones SK Jr;Xiao Y;Rybarski JR;Dillard KE;Hussmann J;Saifuddin FA;Savran CA;Ellington AD;Ke A;Press WH;Finkelstein IJ
CRISPR-Cas nucleoproteins target foreign DNA via base pairing with a crRNA. However, a quantitative description of protein binding and nuclease activation at off-target DNA sequences remains elusive. Here, we describe a chip-hybridized association-mapping platform (CHAMP) that repurposes next-generation sequencing chips to simultaneously measure the interactions between proteins and ~107 unique DNA sequences. Using CHAMP, we provide the first comprehensive survey of DNA recognition by a Type I-E CRISPR-Cas (Cascade) complex and Cas3 nuclease. Analysis of mutated target sequences and human genomic DNA reveal that Cascade recognizes an extended protospacer adjacent motif (PAM). Cascade recognizes DNA with a surprising three-nucleotide periodicity. The identity of the PAM and the PAM-proximal nucleotides control Cas3 recruitment by releasing the Cse1 subunit. These findings are used to develop a model for the biophysical constraints governing off-target DNA binding. CHAMP provides a framework for high-throughput, quantitative analysis of protein-DNA interactions on synthetic and genomic DNA.
登录
查看更多内容
DOI:
10.1038/nrg2749
发表时间:
2010-03
期刊:
Nature reviews. Genetics
影响因子:
--
作者:
通讯作者:
--
影响因子:
16
作者:
Leenay RT;Maksimchuk KR;Slotkowski RA;Agrawal RN;Gomaa AA;Briner AE;Barrangou R;Beisel CL
通讯作者:
Beisel CL
影响因子:
48
作者:
Langmead, Ben;Salzberg, Steven L.
通讯作者:
Salzberg, Steven L.
影响因子:
16
作者:
Blosser, Timothy R.;Loeff, Luuk;Westra, Edze R.;Vlot, Marnix;Kunne, Tim;Sobota, Malgorzata;Dekker, Cees;Brouns, Stan J. J.;Joo, Chirlmin
通讯作者:
Joo, Chirlmin
影响因子:
64.5
作者:
Hsu PD;Lander ES;Zhang F
通讯作者:
Zhang F