Massively parallel profiling of RNA-targeting CRISPR-Cas13d.
Massively parallel profiling of RNA-targeting CRISPR-Cas13d.
复制标题
DOI:
10.1038/s41467-024-44738-w
复制
发表时间:
2024-01-12
影响因子:
16.6
通讯作者:
Finkelstein, Ilya J.
中科院分区:
文献类型:
--
作者:
Kuo, Hung-Che;Prupes, Joshua;Chou, Chia-Wei;Finkelstein, Ilya J.
CRISPR-Cas13d cleaves RNA and is used in vivo and for diagnostics. However, a systematic understanding of its RNA binding and cleavage specificity is lacking. Here, we describe an RNA Chip-Hybridized Association-Mapping Platform (RNA-CHAMP) for measuring the binding affinity for > 10,000 RNAs containing structural perturbations and other alterations relative to the CRISPR RNA (crRNA). Deep profiling of Cas13d reveals that it does not require a protospacer flanking sequence but is exquisitely sensitive to secondary structure within the target RNA. Cas13d binding is penalized by mismatches in the distal crRNA-target RNA region, while alterations in the proximal region inhibit nuclease activity. A biophysical model built from these data reveals that target recognition initiates in the distal end of the target RNA. Using this model, we design crRNAs that can differentiate between SARS-CoV-2 variants by modulating nuclease activation. This work describes the key determinants of RNA targeting by a type VI CRISPR enzyme. Systematic understanding of CRISPR enzyme RNA binding specificity and cleavage is lacking. Here the authors report RNA chip-hybridised association-mapping platform (RNA-CHAMP), a workflow that repurposes next generation DNA sequencing chips to measure the binding affinity for RNA targets.
登录
查看更多内容
影响因子:
5.5
作者:
通讯作者:
--
DOI:
10.1126/science.aaf5573
发表时间:
2016-08-05
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Abudayyeh OO;Gootenberg JS;Konermann S;Joung J;Slaymaker IM;Cox DB;Shmakov S;Makarova KS;Semenova E;Minakhin L;Severinov K;Regev A;Lander ES;Koonin EV;Zhang F
通讯作者:
Zhang F
影响因子:
64.8
作者:
East-Seletsky A;O'Connell MR;Knight SC;Burstein D;Cate JH;Tjian R;Doudna JA
通讯作者:
Doudna JA
影响因子:
4.6
作者:
Pandit K;Petrescu J;Cuevas M;Stephenson W;Smibert P;Phatnani H;Maniatis S
通讯作者:
Maniatis S
影响因子:
29.4
作者:
Kuo, Yu-An;Jung, Cheulhee;Chen, Yu-An;Kuo, Hung-Che;Zhao, Oliver S.;Nguyen, Trung D.;Rybarski, James R.;Hong, Soonwoo;Chen, Yuan-, I;Wylie, Dennis C.;Hawkins, John A.;Walker, Jada N.;Shields, Samuel W. J.;Brodbelt, Jennifer S.;Petty, Jeffrey T.;Finkelstein, Ilya J.;Yeh, Hsin-Chih
通讯作者:
Yeh, Hsin-Chih