RNA-activated protein cleavage with a CRISPR-associated endopeptidase
In prokaryotes, CRISPR-Cas systems provide adaptive immune responses against foreign genetic elements through RNA-guided nuclease activity. Recently, additional genes with non-nuclease functions have been found in genetic association with CRISPR systems, suggesting that there may be other RNA-guided non-nucleolytic enzymes. One such gene from Desulfonema ishimotonii encodes the TPR-CHAT protease Csx29, which is associated with the CRISPR effector Cas7-11. Here, we demonstrate that this CRISPR-associated protease (CASP) exhibits programmable RNA-activated endopeptidase activity against a sigma factor inhibitor to regulate a transcriptional response. Cryo-electron microscopy of an active and substrate-bound CASP complex reveals an allosteric activation mechanism that reorganizes Csx29 catalytic residues upon target RNA binding. This work reveals an RNA-guided function in nature that can be leveraged for RNA-sensing applications in vitro and in human cells.
Errataetall: |
CommentIn: Nat Rev Genet. 2023 Feb;24(2):71. - PMID 36543986 |
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Medienart: |
E-Artikel |
Erscheinungsjahr: |
2022 |
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Erschienen: |
2022 |
Enthalten in: |
Zur Gesamtaufnahme - volume:378 |
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Enthalten in: |
Science (New York, N.Y.) - 378(2022), 6622 vom: 25. Nov., Seite 874-881 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Strecker, Jonathan [VerfasserIn] |
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Links: |
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Anmerkungen: |
Date Completed 30.11.2022 Date Revised 04.01.2024 published: Print-Electronic CommentIn: Nat Rev Genet. 2023 Feb;24(2):71. - PMID 36543986 Citation Status MEDLINE |
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doi: |
10.1126/science.add7450 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM349363471 |
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520 | |a In prokaryotes, CRISPR-Cas systems provide adaptive immune responses against foreign genetic elements through RNA-guided nuclease activity. Recently, additional genes with non-nuclease functions have been found in genetic association with CRISPR systems, suggesting that there may be other RNA-guided non-nucleolytic enzymes. One such gene from Desulfonema ishimotonii encodes the TPR-CHAT protease Csx29, which is associated with the CRISPR effector Cas7-11. Here, we demonstrate that this CRISPR-associated protease (CASP) exhibits programmable RNA-activated endopeptidase activity against a sigma factor inhibitor to regulate a transcriptional response. Cryo-electron microscopy of an active and substrate-bound CASP complex reveals an allosteric activation mechanism that reorganizes Csx29 catalytic residues upon target RNA binding. This work reveals an RNA-guided function in nature that can be leveraged for RNA-sensing applications in vitro and in human cells | ||
650 | 4 | |a Journal Article | |
650 | 4 | |a Research Support, N.I.H., Extramural | |
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650 | 7 | |a Endopeptidases |2 NLM | |
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650 | 7 | |a Bacterial Proteins |2 NLM | |
700 | 1 | |a Demircioglu, F Esra |e verfasserin |4 aut | |
700 | 1 | |a Li, David |e verfasserin |4 aut | |
700 | 1 | |a Faure, Guilhem |e verfasserin |4 aut | |
700 | 1 | |a Wilkinson, Max E |e verfasserin |4 aut | |
700 | 1 | |a Gootenberg, Jonathan S |e verfasserin |4 aut | |
700 | 1 | |a Abudayyeh, Omar O |e verfasserin |4 aut | |
700 | 1 | |a Nishimasu, Hiroshi |e verfasserin |4 aut | |
700 | 1 | |a Macrae, Rhiannon K |e verfasserin |4 aut | |
700 | 1 | |a Zhang, Feng |e verfasserin |4 aut | |
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