Toolkit/auxiliary photocleavable oligodeoxyribonucleotides complementary to crRNA

auxiliary photocleavable oligodeoxyribonucleotides complementary to crRNA

RNA Element·Research·Since 2021

Also known as: PC-DNAs

Taxonomy: Mechanism Branch / Component. Workflows sit above the mechanism and technique branches rather than replacing them.

Summary

Auxiliary photocleavable oligodeoxyribonucleotides complementary to crRNA (PC-DNAs) are inhibitory oligonucleotide components of a photoactivatable nanoCRISPR/Cas9 system. They hybridize to crRNA to suppress Cas9 function before illumination and are photocleaved by 365 nm UV light to release crRNA and restore gene-editing activity.

Usefulness & Problems

Why this is useful

PC-DNAs provide light-gated control over CRISPR/Cas9 activity, enabling temporal activation of gene editing by external irradiation. In the reported nanoCRISPR/Cas9 format, this strategy was used to create a large functional difference between pre-irradiation and post-irradiation Cas9 activity.

Problem solved

This tool addresses the problem of keeping crRNA-dependent Cas9 editing inactive until a defined light stimulus is applied. It specifically solves reversible crRNA blocking in a nanoparticle-associated CRISPR/Cas9 system using photocleavable complementary oligodeoxyribonucleotides.

Problem links

Need controllable genome or transcript editing

Derived

Auxiliary photocleavable oligodeoxyribonucleotides complementary to crRNA (PC-DNAs) are components of a photoactivatable nanoCRISPR/Cas9 system. They transiently block crRNA function and, after 365 nm UV irradiation, are photocleaved to release crRNA and restore Cas9-mediated gene-editing activity.

Need precise spatiotemporal control with light input

Derived

Auxiliary photocleavable oligodeoxyribonucleotides complementary to crRNA (PC-DNAs) are components of a photoactivatable nanoCRISPR/Cas9 system. They transiently block crRNA function and, after 365 nm UV irradiation, are photocleaved to release crRNA and restore Cas9-mediated gene-editing activity.

Taxonomy & Function

Primary hierarchy

Mechanism Branch

Component: A low-level RNA part used inside a larger architecture that realizes a mechanism.

Techniques

No technique tags yet.

Target processes

editing

Input: Light

Implementation Constraints

cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationimplementation constraint: spectral hardware requirementoperating role: regulatorswitch architecture: cleavage

PC-DNAs were designed as oligodeoxyribonucleotides complementary to crRNA and used in a system where the photocleavable oligonucleotides were immobilized on carbon nanoparticles. Practical parameters reported as important included oligonucleotide length, number of photocleavable linkers, UV irradiation time, and nanoparticle type; 365 nm irradiation was used for activation.

The evidence provided is limited to a single 2021 study describing a nanoCRISPR/Cas9 implementation. Validation details beyond light-dependent Cas9 activity control, including broader organismal testing, editing outcomes across targets, and independent replication, are not supplied here.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1engineering approachsupports2021Source 1needs review

The authors proposed a photoactivatable CRISPR/Cas9 gene-editing system based on photocleavable oligodeoxyribonucleotides complementary to crRNA.

Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.
Claim 2engineering approachsupports2021Source 1needs review

The authors proposed a photoactivatable CRISPR/Cas9 gene-editing system based on photocleavable oligodeoxyribonucleotides complementary to crRNA.

Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.
Claim 3engineering approachsupports2021Source 1needs review

The authors proposed a photoactivatable CRISPR/Cas9 gene-editing system based on photocleavable oligodeoxyribonucleotides complementary to crRNA.

Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.
Claim 4engineering approachsupports2021Source 1needs review

The authors proposed a photoactivatable CRISPR/Cas9 gene-editing system based on photocleavable oligodeoxyribonucleotides complementary to crRNA.

Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.
Claim 5engineering approachsupports2021Source 1needs review

The authors proposed a photoactivatable CRISPR/Cas9 gene-editing system based on photocleavable oligodeoxyribonucleotides complementary to crRNA.

Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.
Claim 6engineering approachsupports2021Source 1needs review

The authors proposed a photoactivatable CRISPR/Cas9 gene-editing system based on photocleavable oligodeoxyribonucleotides complementary to crRNA.

Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.
Claim 7engineering approachsupports2021Source 1needs review

The authors proposed a photoactivatable CRISPR/Cas9 gene-editing system based on photocleavable oligodeoxyribonucleotides complementary to crRNA.

Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.
Claim 8engineering approachsupports2021Source 1needs review

The authors proposed a photoactivatable CRISPR/Cas9 gene-editing system based on photocleavable oligodeoxyribonucleotides complementary to crRNA.

Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.
Claim 9engineering approachsupports2021Source 1needs review

The authors proposed a photoactivatable CRISPR/Cas9 gene-editing system based on photocleavable oligodeoxyribonucleotides complementary to crRNA.

Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.
Claim 10engineering approachsupports2021Source 1needs review

The authors proposed a photoactivatable CRISPR/Cas9 gene-editing system based on photocleavable oligodeoxyribonucleotides complementary to crRNA.

Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.
Claim 11engineering approachsupports2021Source 1needs review

The authors proposed a photoactivatable CRISPR/Cas9 gene-editing system based on photocleavable oligodeoxyribonucleotides complementary to crRNA.

Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.
Claim 12engineering approachsupports2021Source 1needs review

The authors proposed a photoactivatable CRISPR/Cas9 gene-editing system based on photocleavable oligodeoxyribonucleotides complementary to crRNA.

Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.
Claim 13engineering approachsupports2021Source 1needs review

The authors proposed a photoactivatable CRISPR/Cas9 gene-editing system based on photocleavable oligodeoxyribonucleotides complementary to crRNA.

Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.
Claim 14engineering approachsupports2021Source 1needs review

The authors proposed a photoactivatable CRISPR/Cas9 gene-editing system based on photocleavable oligodeoxyribonucleotides complementary to crRNA.

Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.
Claim 15engineering approachsupports2021Source 1needs review

The authors proposed a photoactivatable CRISPR/Cas9 gene-editing system based on photocleavable oligodeoxyribonucleotides complementary to crRNA.

Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.
Claim 16engineering approachsupports2021Source 1needs review

The authors proposed a photoactivatable CRISPR/Cas9 gene-editing system based on photocleavable oligodeoxyribonucleotides complementary to crRNA.

Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.
Claim 17engineering approachsupports2021Source 1needs review

The authors proposed a photoactivatable CRISPR/Cas9 gene-editing system based on photocleavable oligodeoxyribonucleotides complementary to crRNA.

Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.
Claim 18mechanism of controlsupports2021Source 1needs review

Immobilizing photocleavable oligonucleotides on carbon nanoparticles blocks crRNA and corresponding Cas9 activity before UV irradiation, and UV irradiation at 365 nm releases crRNA and restores Cas9 activity.

Immobilizing PC-DNAs on the surface of carbon nanoparticles through 3'-terminal pyrene residue provided sufficient blocking of crRNA (and corresponding Cas9 activity) before UV irradiation and allows for crRNA release after UV irradiation at 365 nm, which restores Cas9 activity.
UV irradiation wavelength 365 nm
Claim 19mechanism of controlsupports2021Source 1needs review

Immobilizing photocleavable oligonucleotides on carbon nanoparticles blocks crRNA and corresponding Cas9 activity before UV irradiation, and UV irradiation at 365 nm releases crRNA and restores Cas9 activity.

Immobilizing PC-DNAs on the surface of carbon nanoparticles through 3'-terminal pyrene residue provided sufficient blocking of crRNA (and corresponding Cas9 activity) before UV irradiation and allows for crRNA release after UV irradiation at 365 nm, which restores Cas9 activity.
UV irradiation wavelength 365 nm
Claim 20mechanism of controlsupports2021Source 1needs review

Immobilizing photocleavable oligonucleotides on carbon nanoparticles blocks crRNA and corresponding Cas9 activity before UV irradiation, and UV irradiation at 365 nm releases crRNA and restores Cas9 activity.

Immobilizing PC-DNAs on the surface of carbon nanoparticles through 3'-terminal pyrene residue provided sufficient blocking of crRNA (and corresponding Cas9 activity) before UV irradiation and allows for crRNA release after UV irradiation at 365 nm, which restores Cas9 activity.
UV irradiation wavelength 365 nm
Claim 21mechanism of controlsupports2021Source 1needs review

Immobilizing photocleavable oligonucleotides on carbon nanoparticles blocks crRNA and corresponding Cas9 activity before UV irradiation, and UV irradiation at 365 nm releases crRNA and restores Cas9 activity.

Immobilizing PC-DNAs on the surface of carbon nanoparticles through 3'-terminal pyrene residue provided sufficient blocking of crRNA (and corresponding Cas9 activity) before UV irradiation and allows for crRNA release after UV irradiation at 365 nm, which restores Cas9 activity.
UV irradiation wavelength 365 nm
Claim 22mechanism of controlsupports2021Source 1needs review

Immobilizing photocleavable oligonucleotides on carbon nanoparticles blocks crRNA and corresponding Cas9 activity before UV irradiation, and UV irradiation at 365 nm releases crRNA and restores Cas9 activity.

Immobilizing PC-DNAs on the surface of carbon nanoparticles through 3'-terminal pyrene residue provided sufficient blocking of crRNA (and corresponding Cas9 activity) before UV irradiation and allows for crRNA release after UV irradiation at 365 nm, which restores Cas9 activity.
UV irradiation wavelength 365 nm
Claim 23mechanism of controlsupports2021Source 1needs review

Immobilizing photocleavable oligonucleotides on carbon nanoparticles blocks crRNA and corresponding Cas9 activity before UV irradiation, and UV irradiation at 365 nm releases crRNA and restores Cas9 activity.

Immobilizing PC-DNAs on the surface of carbon nanoparticles through 3'-terminal pyrene residue provided sufficient blocking of crRNA (and corresponding Cas9 activity) before UV irradiation and allows for crRNA release after UV irradiation at 365 nm, which restores Cas9 activity.
UV irradiation wavelength 365 nm
Claim 24mechanism of controlsupports2021Source 1needs review

Immobilizing photocleavable oligonucleotides on carbon nanoparticles blocks crRNA and corresponding Cas9 activity before UV irradiation, and UV irradiation at 365 nm releases crRNA and restores Cas9 activity.

Immobilizing PC-DNAs on the surface of carbon nanoparticles through 3'-terminal pyrene residue provided sufficient blocking of crRNA (and corresponding Cas9 activity) before UV irradiation and allows for crRNA release after UV irradiation at 365 nm, which restores Cas9 activity.
UV irradiation wavelength 365 nm
Claim 25mechanism of controlsupports2021Source 1needs review

Immobilizing photocleavable oligonucleotides on carbon nanoparticles blocks crRNA and corresponding Cas9 activity before UV irradiation, and UV irradiation at 365 nm releases crRNA and restores Cas9 activity.

Immobilizing PC-DNAs on the surface of carbon nanoparticles through 3'-terminal pyrene residue provided sufficient blocking of crRNA (and corresponding Cas9 activity) before UV irradiation and allows for crRNA release after UV irradiation at 365 nm, which restores Cas9 activity.
UV irradiation wavelength 365 nm
Claim 26mechanism of controlsupports2021Source 1needs review

Immobilizing photocleavable oligonucleotides on carbon nanoparticles blocks crRNA and corresponding Cas9 activity before UV irradiation, and UV irradiation at 365 nm releases crRNA and restores Cas9 activity.

Immobilizing PC-DNAs on the surface of carbon nanoparticles through 3'-terminal pyrene residue provided sufficient blocking of crRNA (and corresponding Cas9 activity) before UV irradiation and allows for crRNA release after UV irradiation at 365 nm, which restores Cas9 activity.
UV irradiation wavelength 365 nm
Claim 27mechanism of controlsupports2021Source 1needs review

Immobilizing photocleavable oligonucleotides on carbon nanoparticles blocks crRNA and corresponding Cas9 activity before UV irradiation, and UV irradiation at 365 nm releases crRNA and restores Cas9 activity.

Immobilizing PC-DNAs on the surface of carbon nanoparticles through 3'-terminal pyrene residue provided sufficient blocking of crRNA (and corresponding Cas9 activity) before UV irradiation and allows for crRNA release after UV irradiation at 365 nm, which restores Cas9 activity.
UV irradiation wavelength 365 nm
Claim 28mechanism of controlsupports2021Source 1needs review

Immobilizing photocleavable oligonucleotides on carbon nanoparticles blocks crRNA and corresponding Cas9 activity before UV irradiation, and UV irradiation at 365 nm releases crRNA and restores Cas9 activity.

Immobilizing PC-DNAs on the surface of carbon nanoparticles through 3'-terminal pyrene residue provided sufficient blocking of crRNA (and corresponding Cas9 activity) before UV irradiation and allows for crRNA release after UV irradiation at 365 nm, which restores Cas9 activity.
UV irradiation wavelength 365 nm
Claim 29mechanism of controlsupports2021Source 1needs review

Immobilizing photocleavable oligonucleotides on carbon nanoparticles blocks crRNA and corresponding Cas9 activity before UV irradiation, and UV irradiation at 365 nm releases crRNA and restores Cas9 activity.

Immobilizing PC-DNAs on the surface of carbon nanoparticles through 3'-terminal pyrene residue provided sufficient blocking of crRNA (and corresponding Cas9 activity) before UV irradiation and allows for crRNA release after UV irradiation at 365 nm, which restores Cas9 activity.
UV irradiation wavelength 365 nm
Claim 30mechanism of controlsupports2021Source 1needs review

Immobilizing photocleavable oligonucleotides on carbon nanoparticles blocks crRNA and corresponding Cas9 activity before UV irradiation, and UV irradiation at 365 nm releases crRNA and restores Cas9 activity.

Immobilizing PC-DNAs on the surface of carbon nanoparticles through 3'-terminal pyrene residue provided sufficient blocking of crRNA (and corresponding Cas9 activity) before UV irradiation and allows for crRNA release after UV irradiation at 365 nm, which restores Cas9 activity.
UV irradiation wavelength 365 nm
Claim 31mechanism of controlsupports2021Source 1needs review

Immobilizing photocleavable oligonucleotides on carbon nanoparticles blocks crRNA and corresponding Cas9 activity before UV irradiation, and UV irradiation at 365 nm releases crRNA and restores Cas9 activity.

Immobilizing PC-DNAs on the surface of carbon nanoparticles through 3'-terminal pyrene residue provided sufficient blocking of crRNA (and corresponding Cas9 activity) before UV irradiation and allows for crRNA release after UV irradiation at 365 nm, which restores Cas9 activity.
UV irradiation wavelength 365 nm
Claim 32mechanism of controlsupports2021Source 1needs review

Immobilizing photocleavable oligonucleotides on carbon nanoparticles blocks crRNA and corresponding Cas9 activity before UV irradiation, and UV irradiation at 365 nm releases crRNA and restores Cas9 activity.

Immobilizing PC-DNAs on the surface of carbon nanoparticles through 3'-terminal pyrene residue provided sufficient blocking of crRNA (and corresponding Cas9 activity) before UV irradiation and allows for crRNA release after UV irradiation at 365 nm, which restores Cas9 activity.
UV irradiation wavelength 365 nm
Claim 33mechanism of controlsupports2021Source 1needs review

Immobilizing photocleavable oligonucleotides on carbon nanoparticles blocks crRNA and corresponding Cas9 activity before UV irradiation, and UV irradiation at 365 nm releases crRNA and restores Cas9 activity.

Immobilizing PC-DNAs on the surface of carbon nanoparticles through 3'-terminal pyrene residue provided sufficient blocking of crRNA (and corresponding Cas9 activity) before UV irradiation and allows for crRNA release after UV irradiation at 365 nm, which restores Cas9 activity.
UV irradiation wavelength 365 nm
Claim 34mechanism of controlsupports2021Source 1needs review

Immobilizing photocleavable oligonucleotides on carbon nanoparticles blocks crRNA and corresponding Cas9 activity before UV irradiation, and UV irradiation at 365 nm releases crRNA and restores Cas9 activity.

Immobilizing PC-DNAs on the surface of carbon nanoparticles through 3'-terminal pyrene residue provided sufficient blocking of crRNA (and corresponding Cas9 activity) before UV irradiation and allows for crRNA release after UV irradiation at 365 nm, which restores Cas9 activity.
UV irradiation wavelength 365 nm
Claim 35optimization resultsupports2021Source 1needs review

The authors optimized blocking oligonucleotide length, linker number, irradiation time, and carbon nanoparticle type, and identified the carbon-encapsulated iron nanoparticle version as the most promising because it gave the greatest before-versus-after irradiation functional activity difference.

We optimized the length of blocking photocleavable oligonucleotide, number of linkers, time of irradiation, and the type of carbon nanoparticles. Based on the results, we consider the nanoCRISPR/Cas9 system involving carbon-encapsulated iron nanoparticles the most promising. It provides the greatest difference of functional activity before/after irradiation
Claim 36optimization resultsupports2021Source 1needs review

The authors optimized blocking oligonucleotide length, linker number, irradiation time, and carbon nanoparticle type, and identified the carbon-encapsulated iron nanoparticle version as the most promising because it gave the greatest before-versus-after irradiation functional activity difference.

We optimized the length of blocking photocleavable oligonucleotide, number of linkers, time of irradiation, and the type of carbon nanoparticles. Based on the results, we consider the nanoCRISPR/Cas9 system involving carbon-encapsulated iron nanoparticles the most promising. It provides the greatest difference of functional activity before/after irradiation
Claim 37optimization resultsupports2021Source 1needs review

The authors optimized blocking oligonucleotide length, linker number, irradiation time, and carbon nanoparticle type, and identified the carbon-encapsulated iron nanoparticle version as the most promising because it gave the greatest before-versus-after irradiation functional activity difference.

We optimized the length of blocking photocleavable oligonucleotide, number of linkers, time of irradiation, and the type of carbon nanoparticles. Based on the results, we consider the nanoCRISPR/Cas9 system involving carbon-encapsulated iron nanoparticles the most promising. It provides the greatest difference of functional activity before/after irradiation
Claim 38optimization resultsupports2021Source 1needs review

The authors optimized blocking oligonucleotide length, linker number, irradiation time, and carbon nanoparticle type, and identified the carbon-encapsulated iron nanoparticle version as the most promising because it gave the greatest before-versus-after irradiation functional activity difference.

We optimized the length of blocking photocleavable oligonucleotide, number of linkers, time of irradiation, and the type of carbon nanoparticles. Based on the results, we consider the nanoCRISPR/Cas9 system involving carbon-encapsulated iron nanoparticles the most promising. It provides the greatest difference of functional activity before/after irradiation
Claim 39optimization resultsupports2021Source 1needs review

The authors optimized blocking oligonucleotide length, linker number, irradiation time, and carbon nanoparticle type, and identified the carbon-encapsulated iron nanoparticle version as the most promising because it gave the greatest before-versus-after irradiation functional activity difference.

We optimized the length of blocking photocleavable oligonucleotide, number of linkers, time of irradiation, and the type of carbon nanoparticles. Based on the results, we consider the nanoCRISPR/Cas9 system involving carbon-encapsulated iron nanoparticles the most promising. It provides the greatest difference of functional activity before/after irradiation
Claim 40optimization resultsupports2021Source 1needs review

The authors optimized blocking oligonucleotide length, linker number, irradiation time, and carbon nanoparticle type, and identified the carbon-encapsulated iron nanoparticle version as the most promising because it gave the greatest before-versus-after irradiation functional activity difference.

We optimized the length of blocking photocleavable oligonucleotide, number of linkers, time of irradiation, and the type of carbon nanoparticles. Based on the results, we consider the nanoCRISPR/Cas9 system involving carbon-encapsulated iron nanoparticles the most promising. It provides the greatest difference of functional activity before/after irradiation
Claim 41optimization resultsupports2021Source 1needs review

The authors optimized blocking oligonucleotide length, linker number, irradiation time, and carbon nanoparticle type, and identified the carbon-encapsulated iron nanoparticle version as the most promising because it gave the greatest before-versus-after irradiation functional activity difference.

We optimized the length of blocking photocleavable oligonucleotide, number of linkers, time of irradiation, and the type of carbon nanoparticles. Based on the results, we consider the nanoCRISPR/Cas9 system involving carbon-encapsulated iron nanoparticles the most promising. It provides the greatest difference of functional activity before/after irradiation
Claim 42optimization resultsupports2021Source 1needs review

The authors optimized blocking oligonucleotide length, linker number, irradiation time, and carbon nanoparticle type, and identified the carbon-encapsulated iron nanoparticle version as the most promising because it gave the greatest before-versus-after irradiation functional activity difference.

We optimized the length of blocking photocleavable oligonucleotide, number of linkers, time of irradiation, and the type of carbon nanoparticles. Based on the results, we consider the nanoCRISPR/Cas9 system involving carbon-encapsulated iron nanoparticles the most promising. It provides the greatest difference of functional activity before/after irradiation
Claim 43optimization resultsupports2021Source 1needs review

The authors optimized blocking oligonucleotide length, linker number, irradiation time, and carbon nanoparticle type, and identified the carbon-encapsulated iron nanoparticle version as the most promising because it gave the greatest before-versus-after irradiation functional activity difference.

We optimized the length of blocking photocleavable oligonucleotide, number of linkers, time of irradiation, and the type of carbon nanoparticles. Based on the results, we consider the nanoCRISPR/Cas9 system involving carbon-encapsulated iron nanoparticles the most promising. It provides the greatest difference of functional activity before/after irradiation
Claim 44optimization resultsupports2021Source 1needs review

The authors optimized blocking oligonucleotide length, linker number, irradiation time, and carbon nanoparticle type, and identified the carbon-encapsulated iron nanoparticle version as the most promising because it gave the greatest before-versus-after irradiation functional activity difference.

We optimized the length of blocking photocleavable oligonucleotide, number of linkers, time of irradiation, and the type of carbon nanoparticles. Based on the results, we consider the nanoCRISPR/Cas9 system involving carbon-encapsulated iron nanoparticles the most promising. It provides the greatest difference of functional activity before/after irradiation
Claim 45prospective applicationsupports2021Source 1needs review

The carbon-encapsulated iron nanoparticle nanoCRISPR/Cas9 system could prospectively support magnetic field-controlled delivery and UV-induced spatiotemporal gene editing.

and can be used in prospective for magnetic field-controlled delivery of CRISPR system into the target cells or tissues and spatiotemporal gene editing induced by UV irradiation.
Claim 46prospective applicationsupports2021Source 1needs review

The carbon-encapsulated iron nanoparticle nanoCRISPR/Cas9 system could prospectively support magnetic field-controlled delivery and UV-induced spatiotemporal gene editing.

and can be used in prospective for magnetic field-controlled delivery of CRISPR system into the target cells or tissues and spatiotemporal gene editing induced by UV irradiation.
Claim 47prospective applicationsupports2021Source 1needs review

The carbon-encapsulated iron nanoparticle nanoCRISPR/Cas9 system could prospectively support magnetic field-controlled delivery and UV-induced spatiotemporal gene editing.

and can be used in prospective for magnetic field-controlled delivery of CRISPR system into the target cells or tissues and spatiotemporal gene editing induced by UV irradiation.
Claim 48prospective applicationsupports2021Source 1needs review

The carbon-encapsulated iron nanoparticle nanoCRISPR/Cas9 system could prospectively support magnetic field-controlled delivery and UV-induced spatiotemporal gene editing.

and can be used in prospective for magnetic field-controlled delivery of CRISPR system into the target cells or tissues and spatiotemporal gene editing induced by UV irradiation.
Claim 49prospective applicationsupports2021Source 1needs review

The carbon-encapsulated iron nanoparticle nanoCRISPR/Cas9 system could prospectively support magnetic field-controlled delivery and UV-induced spatiotemporal gene editing.

and can be used in prospective for magnetic field-controlled delivery of CRISPR system into the target cells or tissues and spatiotemporal gene editing induced by UV irradiation.
Claim 50prospective applicationsupports2021Source 1needs review

The carbon-encapsulated iron nanoparticle nanoCRISPR/Cas9 system could prospectively support magnetic field-controlled delivery and UV-induced spatiotemporal gene editing.

and can be used in prospective for magnetic field-controlled delivery of CRISPR system into the target cells or tissues and spatiotemporal gene editing induced by UV irradiation.
Claim 51prospective applicationsupports2021Source 1needs review

The carbon-encapsulated iron nanoparticle nanoCRISPR/Cas9 system could prospectively support magnetic field-controlled delivery and UV-induced spatiotemporal gene editing.

and can be used in prospective for magnetic field-controlled delivery of CRISPR system into the target cells or tissues and spatiotemporal gene editing induced by UV irradiation.
Claim 52prospective applicationsupports2021Source 1needs review

The carbon-encapsulated iron nanoparticle nanoCRISPR/Cas9 system could prospectively support magnetic field-controlled delivery and UV-induced spatiotemporal gene editing.

and can be used in prospective for magnetic field-controlled delivery of CRISPR system into the target cells or tissues and spatiotemporal gene editing induced by UV irradiation.
Claim 53prospective applicationsupports2021Source 1needs review

The carbon-encapsulated iron nanoparticle nanoCRISPR/Cas9 system could prospectively support magnetic field-controlled delivery and UV-induced spatiotemporal gene editing.

and can be used in prospective for magnetic field-controlled delivery of CRISPR system into the target cells or tissues and spatiotemporal gene editing induced by UV irradiation.
Claim 54prospective applicationsupports2021Source 1needs review

The carbon-encapsulated iron nanoparticle nanoCRISPR/Cas9 system could prospectively support magnetic field-controlled delivery and UV-induced spatiotemporal gene editing.

and can be used in prospective for magnetic field-controlled delivery of CRISPR system into the target cells or tissues and spatiotemporal gene editing induced by UV irradiation.

Approval Evidence

1 source2 linked approval claimsfirst-pass slug auxiliary-photocleavable-oligodeoxyribonucleotides-complementary-to-crrna
The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.

Source:

engineering approachsupports

The authors proposed a photoactivatable CRISPR/Cas9 gene-editing system based on photocleavable oligodeoxyribonucleotides complementary to crRNA.

Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.

Source:

mechanism of controlsupports

Immobilizing photocleavable oligonucleotides on carbon nanoparticles blocks crRNA and corresponding Cas9 activity before UV irradiation, and UV irradiation at 365 nm releases crRNA and restores Cas9 activity.

Immobilizing PC-DNAs on the surface of carbon nanoparticles through 3'-terminal pyrene residue provided sufficient blocking of crRNA (and corresponding Cas9 activity) before UV irradiation and allows for crRNA release after UV irradiation at 365 nm, which restores Cas9 activity.

Source:

Comparisons

Source-backed strengths

The system was experimentally optimized across blocking oligonucleotide length, photocleavable linker number, irradiation time, and carbon nanoparticle type. Among the tested formulations, the carbon-encapsulated iron nanoparticle version produced the greatest difference in functional activity before versus after irradiation.

Source:

Here, we proposed a new approach to engineering a photoactivatable CRISPR/Cas9 gene-editing system. The novel nanoCRISPR/Cas9 system is based on the use of auxiliary photocleavable oligodeoxyribonucleotides (PC-DNAs) complementary to crRNA.

Source:

We optimized the length of blocking photocleavable oligonucleotide, number of linkers, time of irradiation, and the type of carbon nanoparticles. Based on the results, we consider the nanoCRISPR/Cas9 system involving carbon-encapsulated iron nanoparticles the most promising. It provides the greatest difference of functional activity before/after irradiation

Compared with caged guide RNA

auxiliary photocleavable oligodeoxyribonucleotides complementary to crRNA and caged guide RNA address a similar problem space because they share editing.

Shared frame: same top-level item type; shared target processes: editing; shared mechanisms: photocleavage; same primary input modality: light

auxiliary photocleavable oligodeoxyribonucleotides complementary to crRNA and light-controlled crRNA address a similar problem space because they share editing.

Shared frame: same top-level item type; shared target processes: editing; shared mechanisms: photocleavage; same primary input modality: light

auxiliary photocleavable oligodeoxyribonucleotides complementary to crRNA and photo-sensitive circular gRNAs address a similar problem space because they share editing.

Shared frame: same top-level item type; shared target processes: editing; shared mechanisms: photocleavage; same primary input modality: light

Ranked Citations

  1. 1.
    StructuralSource 1International Journal of Molecular Sciences2021Claim 14Claim 2Claim 14

    Extracted from this source document.