Title |
CRISPR-CasΦ from huge phages is a hypercompact genome editor
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Published in |
Science, July 2020
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DOI | 10.1126/science.abb1400 |
Pubmed ID | |
Authors |
Patrick Pausch, Basem Al-Shayeb, Ezra Bisom-Rapp, Connor A Tsuchida, Zheng Li, Brady F Cress, Gavin J Knott, Steven E Jacobsen, Jillian F Banfield, Jennifer A Doudna |
Abstract |
CRISPR-Cas systems are found widely in prokaryotes, where they provide adaptive immunity against virus infection and plasmid transformation. We describe a minimal functional CRISPR-Cas system, comprising a single ~70-kilodalton protein, CasΦ, and a CRISPR array, encoded exclusively in the genomes of huge bacteriophages. CasΦ uses a single active site for both CRISPR RNA (crRNA) processing and crRNA-guided DNA cutting to target foreign nucleic acids. This hypercompact system is active in vitro and in human and plant cells with expanded target recognition capabilities relative to other CRISPR-Cas proteins. Useful for genome editing and DNA detection but with a molecular weight half that of Cas9 and Cas12a genome-editing enzymes, CasΦ offers advantages for cellular delivery that expand the genome editing toolbox. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 281 | 29% |
United Kingdom | 51 | 5% |
Germany | 34 | 3% |
Spain | 26 | 3% |
India | 26 | 3% |
Australia | 25 | 3% |
Japan | 23 | 2% |
France | 22 | 2% |
Canada | 21 | 2% |
Other | 127 | 13% |
Unknown | 347 | 35% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 544 | 55% |
Scientists | 402 | 41% |
Science communicators (journalists, bloggers, editors) | 20 | 2% |
Practitioners (doctors, other healthcare professionals) | 17 | 2% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 801 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 141 | 18% |
Student > Ph. D. Student | 139 | 17% |
Student > Bachelor | 82 | 10% |
Student > Master | 64 | 8% |
Student > Doctoral Student | 46 | 6% |
Other | 104 | 13% |
Unknown | 225 | 28% |
Readers by discipline | Count | As % |
---|---|---|
Biochemistry, Genetics and Molecular Biology | 306 | 38% |
Agricultural and Biological Sciences | 123 | 15% |
Immunology and Microbiology | 25 | 3% |
Neuroscience | 19 | 2% |
Engineering | 15 | 2% |
Other | 71 | 9% |
Unknown | 242 | 30% |