Toolkit/CRISPR/Cas9-inducible DNAzyme probe

CRISPR/Cas9-inducible DNAzyme probe

Engineering Method·Research·Since 2024

Also known as: CRISPR-DNAzyme

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

Summary

CRISPR-DNAzyme is a three-stranded DNAzyme probe engineered for in situ imaging of nuclear Zn2+ in living cells. Its catalytic activity is initially blocked by a 20-bp CRISPR/Cas9 recognition site and is activated in the nucleus after Cas9/sgRNA cleavage forms the active DNAzyme structure.

Usefulness & Problems

Why this is useful

This tool enables nuclear Zn2+ imaging with CRISPR/Cas9-dependent activation, allowing signal generation to be restricted to a defined intracellular context. Integration with photoactivation and a Boolean logic gate was reported to provide superior spatiotemporal control for dynamic monitoring of nuclear Zn2+ in HeLa cells and mice.

Source:

With this design, the CRISPR/Cas9‐inducible imaging of nuclear Zn 2+ is demonstrated in living cells.

Problem solved

It addresses the problem of achieving in situ, nucleus-specific imaging of Zn2+ while suppressing DNAzyme activity until a programmed activation event occurs. The design specifically couples Zn2+ sensing to CRISPR/Cas9 cleavage so that the catalytic probe is assembled only after target-site processing in the nucleus.

Source:

With this design, the CRISPR/Cas9‐inducible imaging of nuclear Zn 2+ is demonstrated in living cells.

Taxonomy & Function

Primary hierarchy

Technique Branch

Method: A concrete method used to build, optimize, or evolve an engineered system.

Target processes

editinglocalization

Input: Light

Implementation Constraints

The probe is described as a three-stranded DNAzyme construct containing a 20-bp CRISPR/Cas9 recognition site that blocks catalysis before cleavage. Activation requires Cas9 and sgRNA, and the reported enhanced control involved integration with a photoactivation strategy and Boolean logic gate; the supplied evidence does not specify construct sequences, delivery format, or illumination parameters.

The supplied evidence is limited to a single 2024 source and focuses on nuclear Zn2+ imaging rather than broader applications. Quantitative performance metrics, sequence-level design details, and evidence for use beyond HeLa cells and mice are not provided in the supplied material.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Observations

successMammalian Cell Lineapplication demo

Inferred from claim c2 during normalization. The CRISPR/Cas9-inducible DNAzyme design enables in situ imaging of nuclear Zn2+ in living cells. Derived from claim c2. Quoted text: With this design, the CRISPR/Cas9‐inducible imaging of nuclear Zn 2+ is demonstrated in living cells.

Source:

successMammalian Cell Lineapplication demo

Inferred from claim c2 during normalization. The CRISPR/Cas9-inducible DNAzyme design enables in situ imaging of nuclear Zn2+ in living cells. Derived from claim c2. Quoted text: With this design, the CRISPR/Cas9‐inducible imaging of nuclear Zn 2+ is demonstrated in living cells.

Source:

successMammalian Cell Lineapplication demo

Inferred from claim c2 during normalization. The CRISPR/Cas9-inducible DNAzyme design enables in situ imaging of nuclear Zn2+ in living cells. Derived from claim c2. Quoted text: With this design, the CRISPR/Cas9‐inducible imaging of nuclear Zn 2+ is demonstrated in living cells.

Source:

successMammalian Cell Lineapplication demo

Inferred from claim c2 during normalization. The CRISPR/Cas9-inducible DNAzyme design enables in situ imaging of nuclear Zn2+ in living cells. Derived from claim c2. Quoted text: With this design, the CRISPR/Cas9‐inducible imaging of nuclear Zn 2+ is demonstrated in living cells.

Source:

successMammalian Cell Lineapplication demo

Inferred from claim c2 during normalization. The CRISPR/Cas9-inducible DNAzyme design enables in situ imaging of nuclear Zn2+ in living cells. Derived from claim c2. Quoted text: With this design, the CRISPR/Cas9‐inducible imaging of nuclear Zn 2+ is demonstrated in living cells.

Source:

successMammalian Cell Lineapplication demo

Inferred from claim c2 during normalization. The CRISPR/Cas9-inducible DNAzyme design enables in situ imaging of nuclear Zn2+ in living cells. Derived from claim c2. Quoted text: With this design, the CRISPR/Cas9‐inducible imaging of nuclear Zn 2+ is demonstrated in living cells.

Source:

successMammalian Cell Lineapplication demo

Inferred from claim c2 during normalization. The CRISPR/Cas9-inducible DNAzyme design enables in situ imaging of nuclear Zn2+ in living cells. Derived from claim c2. Quoted text: With this design, the CRISPR/Cas9‐inducible imaging of nuclear Zn 2+ is demonstrated in living cells.

Source:

Supporting Sources

Ranked Claims

Claim 1application capabilitysupports2024Source 1needs review

The CRISPR/Cas9-inducible DNAzyme design enables in situ imaging of nuclear Zn2+ in living cells.

With this design, the CRISPR/Cas9‐inducible imaging of nuclear Zn 2+ is demonstrated in living cells.
Claim 2application capabilitysupports2024Source 1needs review

The CRISPR/Cas9-inducible DNAzyme design enables in situ imaging of nuclear Zn2+ in living cells.

With this design, the CRISPR/Cas9‐inducible imaging of nuclear Zn 2+ is demonstrated in living cells.
Claim 3application capabilitysupports2024Source 1needs review

The CRISPR/Cas9-inducible DNAzyme design enables in situ imaging of nuclear Zn2+ in living cells.

With this design, the CRISPR/Cas9‐inducible imaging of nuclear Zn 2+ is demonstrated in living cells.
Claim 4application capabilitysupports2024Source 1needs review

The CRISPR/Cas9-inducible DNAzyme design enables in situ imaging of nuclear Zn2+ in living cells.

With this design, the CRISPR/Cas9‐inducible imaging of nuclear Zn 2+ is demonstrated in living cells.
Claim 5application capabilitysupports2024Source 1needs review

The CRISPR/Cas9-inducible DNAzyme design enables in situ imaging of nuclear Zn2+ in living cells.

With this design, the CRISPR/Cas9‐inducible imaging of nuclear Zn 2+ is demonstrated in living cells.
Claim 6application capabilitysupports2024Source 1needs review

The CRISPR/Cas9-inducible DNAzyme design enables in situ imaging of nuclear Zn2+ in living cells.

With this design, the CRISPR/Cas9‐inducible imaging of nuclear Zn 2+ is demonstrated in living cells.
Claim 7application capabilitysupports2024Source 1needs review

The CRISPR/Cas9-inducible DNAzyme design enables in situ imaging of nuclear Zn2+ in living cells.

With this design, the CRISPR/Cas9‐inducible imaging of nuclear Zn 2+ is demonstrated in living cells.
Claim 8comparative performancesupports2024Source 1needs review

Integrating the CRISPR-DNAzyme system with photoactivation strategy and Boolean logic gate provided superior spatiotemporal control imaging for dynamic monitoring of nuclear Zn2+ in HeLa cells and mice.

Moreover, the superiority of CRISPR‐DNAzyme for spatiotemporal control imaging was demonstrated by integrating it with photoactivation strategy and Boolean logic gate for dynamic monitoring nuclear Zn 2+ in both HeLa cells and mice.
Claim 9comparative performancesupports2024Source 1needs review

Integrating the CRISPR-DNAzyme system with photoactivation strategy and Boolean logic gate provided superior spatiotemporal control imaging for dynamic monitoring of nuclear Zn2+ in HeLa cells and mice.

Moreover, the superiority of CRISPR‐DNAzyme for spatiotemporal control imaging was demonstrated by integrating it with photoactivation strategy and Boolean logic gate for dynamic monitoring nuclear Zn 2+ in both HeLa cells and mice.
Claim 10comparative performancesupports2024Source 1needs review

Integrating the CRISPR-DNAzyme system with photoactivation strategy and Boolean logic gate provided superior spatiotemporal control imaging for dynamic monitoring of nuclear Zn2+ in HeLa cells and mice.

Moreover, the superiority of CRISPR‐DNAzyme for spatiotemporal control imaging was demonstrated by integrating it with photoactivation strategy and Boolean logic gate for dynamic monitoring nuclear Zn 2+ in both HeLa cells and mice.
Claim 11comparative performancesupports2024Source 1needs review

Integrating the CRISPR-DNAzyme system with photoactivation strategy and Boolean logic gate provided superior spatiotemporal control imaging for dynamic monitoring of nuclear Zn2+ in HeLa cells and mice.

Moreover, the superiority of CRISPR‐DNAzyme for spatiotemporal control imaging was demonstrated by integrating it with photoactivation strategy and Boolean logic gate for dynamic monitoring nuclear Zn 2+ in both HeLa cells and mice.
Claim 12comparative performancesupports2024Source 1needs review

Integrating the CRISPR-DNAzyme system with photoactivation strategy and Boolean logic gate provided superior spatiotemporal control imaging for dynamic monitoring of nuclear Zn2+ in HeLa cells and mice.

Moreover, the superiority of CRISPR‐DNAzyme for spatiotemporal control imaging was demonstrated by integrating it with photoactivation strategy and Boolean logic gate for dynamic monitoring nuclear Zn 2+ in both HeLa cells and mice.
Claim 13comparative performancesupports2024Source 1needs review

Integrating the CRISPR-DNAzyme system with photoactivation strategy and Boolean logic gate provided superior spatiotemporal control imaging for dynamic monitoring of nuclear Zn2+ in HeLa cells and mice.

Moreover, the superiority of CRISPR‐DNAzyme for spatiotemporal control imaging was demonstrated by integrating it with photoactivation strategy and Boolean logic gate for dynamic monitoring nuclear Zn 2+ in both HeLa cells and mice.
Claim 14comparative performancesupports2024Source 1needs review

Integrating the CRISPR-DNAzyme system with photoactivation strategy and Boolean logic gate provided superior spatiotemporal control imaging for dynamic monitoring of nuclear Zn2+ in HeLa cells and mice.

Moreover, the superiority of CRISPR‐DNAzyme for spatiotemporal control imaging was demonstrated by integrating it with photoactivation strategy and Boolean logic gate for dynamic monitoring nuclear Zn 2+ in both HeLa cells and mice.
Claim 15design mechanismsupports2024Source 1needs review

The three-stranded DNAzyme probe contains a 20-bp CRISPR/Cas9 recognition site that blocks DNAzyme activity until Cas9/sgRNA cleavage forms the catalytic DNAzyme structure in the nucleus.

We developed a three‐stranded DNAzyme probe (TSDP) that contained a 20‐base‐pair (20‐bp) recognition site of a CRISPR/Cas9, which blocks the DNAzyme activity. When Cas9, with its specialized nuclear localization function, forms an active complex with sgRNA within the cell nucleus, it cleaves the TSDP at the recognition site, resulting in the in situ formation of catalytic DNAzyme structure.
recognition site length 20 bp
Claim 16design mechanismsupports2024Source 1needs review

The three-stranded DNAzyme probe contains a 20-bp CRISPR/Cas9 recognition site that blocks DNAzyme activity until Cas9/sgRNA cleavage forms the catalytic DNAzyme structure in the nucleus.

We developed a three‐stranded DNAzyme probe (TSDP) that contained a 20‐base‐pair (20‐bp) recognition site of a CRISPR/Cas9, which blocks the DNAzyme activity. When Cas9, with its specialized nuclear localization function, forms an active complex with sgRNA within the cell nucleus, it cleaves the TSDP at the recognition site, resulting in the in situ formation of catalytic DNAzyme structure.
recognition site length 20 bp
Claim 17design mechanismsupports2024Source 1needs review

The three-stranded DNAzyme probe contains a 20-bp CRISPR/Cas9 recognition site that blocks DNAzyme activity until Cas9/sgRNA cleavage forms the catalytic DNAzyme structure in the nucleus.

We developed a three‐stranded DNAzyme probe (TSDP) that contained a 20‐base‐pair (20‐bp) recognition site of a CRISPR/Cas9, which blocks the DNAzyme activity. When Cas9, with its specialized nuclear localization function, forms an active complex with sgRNA within the cell nucleus, it cleaves the TSDP at the recognition site, resulting in the in situ formation of catalytic DNAzyme structure.
recognition site length 20 bp
Claim 18design mechanismsupports2024Source 1needs review

The three-stranded DNAzyme probe contains a 20-bp CRISPR/Cas9 recognition site that blocks DNAzyme activity until Cas9/sgRNA cleavage forms the catalytic DNAzyme structure in the nucleus.

We developed a three‐stranded DNAzyme probe (TSDP) that contained a 20‐base‐pair (20‐bp) recognition site of a CRISPR/Cas9, which blocks the DNAzyme activity. When Cas9, with its specialized nuclear localization function, forms an active complex with sgRNA within the cell nucleus, it cleaves the TSDP at the recognition site, resulting in the in situ formation of catalytic DNAzyme structure.
recognition site length 20 bp
Claim 19design mechanismsupports2024Source 1needs review

The three-stranded DNAzyme probe contains a 20-bp CRISPR/Cas9 recognition site that blocks DNAzyme activity until Cas9/sgRNA cleavage forms the catalytic DNAzyme structure in the nucleus.

We developed a three‐stranded DNAzyme probe (TSDP) that contained a 20‐base‐pair (20‐bp) recognition site of a CRISPR/Cas9, which blocks the DNAzyme activity. When Cas9, with its specialized nuclear localization function, forms an active complex with sgRNA within the cell nucleus, it cleaves the TSDP at the recognition site, resulting in the in situ formation of catalytic DNAzyme structure.
recognition site length 20 bp
Claim 20design mechanismsupports2024Source 1needs review

The three-stranded DNAzyme probe contains a 20-bp CRISPR/Cas9 recognition site that blocks DNAzyme activity until Cas9/sgRNA cleavage forms the catalytic DNAzyme structure in the nucleus.

We developed a three‐stranded DNAzyme probe (TSDP) that contained a 20‐base‐pair (20‐bp) recognition site of a CRISPR/Cas9, which blocks the DNAzyme activity. When Cas9, with its specialized nuclear localization function, forms an active complex with sgRNA within the cell nucleus, it cleaves the TSDP at the recognition site, resulting in the in situ formation of catalytic DNAzyme structure.
recognition site length 20 bp
Claim 21design mechanismsupports2024Source 1needs review

The three-stranded DNAzyme probe contains a 20-bp CRISPR/Cas9 recognition site that blocks DNAzyme activity until Cas9/sgRNA cleavage forms the catalytic DNAzyme structure in the nucleus.

We developed a three‐stranded DNAzyme probe (TSDP) that contained a 20‐base‐pair (20‐bp) recognition site of a CRISPR/Cas9, which blocks the DNAzyme activity. When Cas9, with its specialized nuclear localization function, forms an active complex with sgRNA within the cell nucleus, it cleaves the TSDP at the recognition site, resulting in the in situ formation of catalytic DNAzyme structure.
recognition site length 20 bp
Claim 22toolbox expansionsupports2024Source 1needs review

This conceptual design expands the DNAzyme toolbox for visualizing nuclear metal ions and provides new analytical methods for nuclear metal-associated biology.

Collectively, this conceptual design expands the DNAzyme toolbox for visualizing nuclear metal ions and thus provides new analytical methods for nuclear metal‐associated biology.
Claim 23toolbox expansionsupports2024Source 1needs review

This conceptual design expands the DNAzyme toolbox for visualizing nuclear metal ions and provides new analytical methods for nuclear metal-associated biology.

Collectively, this conceptual design expands the DNAzyme toolbox for visualizing nuclear metal ions and thus provides new analytical methods for nuclear metal‐associated biology.
Claim 24toolbox expansionsupports2024Source 1needs review

This conceptual design expands the DNAzyme toolbox for visualizing nuclear metal ions and provides new analytical methods for nuclear metal-associated biology.

Collectively, this conceptual design expands the DNAzyme toolbox for visualizing nuclear metal ions and thus provides new analytical methods for nuclear metal‐associated biology.
Claim 25toolbox expansionsupports2024Source 1needs review

This conceptual design expands the DNAzyme toolbox for visualizing nuclear metal ions and provides new analytical methods for nuclear metal-associated biology.

Collectively, this conceptual design expands the DNAzyme toolbox for visualizing nuclear metal ions and thus provides new analytical methods for nuclear metal‐associated biology.
Claim 26toolbox expansionsupports2024Source 1needs review

This conceptual design expands the DNAzyme toolbox for visualizing nuclear metal ions and provides new analytical methods for nuclear metal-associated biology.

Collectively, this conceptual design expands the DNAzyme toolbox for visualizing nuclear metal ions and thus provides new analytical methods for nuclear metal‐associated biology.
Claim 27toolbox expansionsupports2024Source 1needs review

This conceptual design expands the DNAzyme toolbox for visualizing nuclear metal ions and provides new analytical methods for nuclear metal-associated biology.

Collectively, this conceptual design expands the DNAzyme toolbox for visualizing nuclear metal ions and thus provides new analytical methods for nuclear metal‐associated biology.
Claim 28toolbox expansionsupports2024Source 1needs review

This conceptual design expands the DNAzyme toolbox for visualizing nuclear metal ions and provides new analytical methods for nuclear metal-associated biology.

Collectively, this conceptual design expands the DNAzyme toolbox for visualizing nuclear metal ions and thus provides new analytical methods for nuclear metal‐associated biology.

Approval Evidence

1 source4 linked approval claimsfirst-pass slug crispr-cas9-inducible-dnazyme-probe
With this design, the CRISPR/Cas9‐inducible imaging of nuclear Zn 2+ is demonstrated in living cells. Moreover, the superiority of CRISPR‐DNAzyme for spatiotemporal control imaging was demonstrated by integrating it with photoactivation strategy and Boolean logic gate

Source:

application capabilitysupports

The CRISPR/Cas9-inducible DNAzyme design enables in situ imaging of nuclear Zn2+ in living cells.

With this design, the CRISPR/Cas9‐inducible imaging of nuclear Zn 2+ is demonstrated in living cells.

Source:

comparative performancesupports

Integrating the CRISPR-DNAzyme system with photoactivation strategy and Boolean logic gate provided superior spatiotemporal control imaging for dynamic monitoring of nuclear Zn2+ in HeLa cells and mice.

Moreover, the superiority of CRISPR‐DNAzyme for spatiotemporal control imaging was demonstrated by integrating it with photoactivation strategy and Boolean logic gate for dynamic monitoring nuclear Zn 2+ in both HeLa cells and mice.

Source:

design mechanismsupports

The three-stranded DNAzyme probe contains a 20-bp CRISPR/Cas9 recognition site that blocks DNAzyme activity until Cas9/sgRNA cleavage forms the catalytic DNAzyme structure in the nucleus.

We developed a three‐stranded DNAzyme probe (TSDP) that contained a 20‐base‐pair (20‐bp) recognition site of a CRISPR/Cas9, which blocks the DNAzyme activity. When Cas9, with its specialized nuclear localization function, forms an active complex with sgRNA within the cell nucleus, it cleaves the TSDP at the recognition site, resulting in the in situ formation of catalytic DNAzyme structure.

Source:

toolbox expansionsupports

This conceptual design expands the DNAzyme toolbox for visualizing nuclear metal ions and provides new analytical methods for nuclear metal-associated biology.

Collectively, this conceptual design expands the DNAzyme toolbox for visualizing nuclear metal ions and thus provides new analytical methods for nuclear metal‐associated biology.

Source:

Comparisons

Source-backed strengths

The reported system was demonstrated for imaging nuclear Zn2+ in living cells. Source literature further states that combining the CRISPR-DNAzyme with photoactivation and Boolean logic gating improved spatiotemporal control for dynamic nuclear Zn2+ imaging in HeLa cells and mice.

Source:

Moreover, the superiority of CRISPR‐DNAzyme for spatiotemporal control imaging was demonstrated by integrating it with photoactivation strategy and Boolean logic gate for dynamic monitoring nuclear Zn 2+ in both HeLa cells and mice.

Ranked Citations

  1. 1.
    StructuralSource 1Angewandte Chemie2024Claim 1Claim 2Claim 3

    Extracted from this source document.