Toolkit/p21-CRY2/CIB1

p21-CRY2/CIB1

Multi-Component Switch·Research·Since 2023

Also known as: cryptochrome 2/CIBN p21 fusion system

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

Summary

p21-CRY2/CIB1 is a blue-light-responsive optogenetic p21 system built by fusing p21 to the cryptochrome 2/CIBN switch components. It was used to control p21 subcellular localization and nuclear function and increased the fraction of cells arrested in G1 phase.

Usefulness & Problems

Why this is useful

This system provides light-dependent control over the localization-dependent activity of the cyclin-dependent kinase inhibitor p21. The cited study further proposed its application in producer cell lines to uncouple proliferation from G1 arrest for biotherapeutic protein production.

Source:

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.

Source:

Here, we applied an optogenetic approach to control the subcellular localization of p21 and its nuclear functions.

Problem solved

It addresses the need for externally controllable regulation of p21 function, specifically its subcellular localization and nuclear activity. The reported implementation also targets controlled induction of G1 cell cycle arrest.

Source:

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.

Problem links

Need conditional recombination or state switching

Derived

p21-CRY2/CIB1 is a blue-light-responsive, multi-component optogenetic p21 system built from fusions to the cryptochrome 2/CIBN switch. It was used to control the subcellular localization and nuclear functions of p21 and to increase the fraction of cells arrested in G1 phase.

Need inducible protein relocalization or recruitment

Derived

p21-CRY2/CIB1 is a blue-light-responsive, multi-component optogenetic p21 system built from fusions to the cryptochrome 2/CIBN switch. It was used to control the subcellular localization and nuclear functions of p21 and to increase the fraction of cells arrested in G1 phase.

Need precise spatiotemporal control with light input

Derived

p21-CRY2/CIB1 is a blue-light-responsive, multi-component optogenetic p21 system built from fusions to the cryptochrome 2/CIBN switch. It was used to control the subcellular localization and nuclear functions of p21 and to increase the fraction of cells arrested in G1 phase.

Taxonomy & Function

Primary hierarchy

Mechanism Branch

Architecture: A composed arrangement of multiple parts that instantiates one or more mechanisms.

Techniques

No technique tags yet.

Target processes

localizationrecombination

Input: Light

Implementation Constraints

cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationimplementation constraint: multi component delivery burdenimplementation constraint: spectral hardware requirementoperating role: reporteroperating role: sensorswitch architecture: multi componentswitch architecture: recruitment

The system was generated through fusions of p21 with the blue-light switch cryptochrome 2/CIBN, indicating a multi-component construct design. The provided evidence does not specify exact fusion topology, expression system, light dose, or any required cofactors.

The supplied evidence is limited to a single 2023 study and does not provide quantitative performance metrics, kinetics, reversibility, or cell-type breadth. Practical details of construct architecture, illumination parameters, and comparative performance against other optogenetic p21 designs are not given in the provided evidence.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1application potentialsupports2023Source 1needs review

Light-controllable p21 in producer cell lines could be applied to uncouple cell proliferation from G1 cell cycle arrest to optimize biotherapeutic protein production.

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.
Claim 2application potentialsupports2023Source 1needs review

Light-controllable p21 in producer cell lines could be applied to uncouple cell proliferation from G1 cell cycle arrest to optimize biotherapeutic protein production.

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.
Claim 3application potentialsupports2023Source 1needs review

Light-controllable p21 in producer cell lines could be applied to uncouple cell proliferation from G1 cell cycle arrest to optimize biotherapeutic protein production.

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.
Claim 4application potentialsupports2023Source 1needs review

Light-controllable p21 in producer cell lines could be applied to uncouple cell proliferation from G1 cell cycle arrest to optimize biotherapeutic protein production.

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.
Claim 5application potentialsupports2023Source 1needs review

Light-controllable p21 in producer cell lines could be applied to uncouple cell proliferation from G1 cell cycle arrest to optimize biotherapeutic protein production.

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.
Claim 6application potentialsupports2023Source 1needs review

Light-controllable p21 in producer cell lines could be applied to uncouple cell proliferation from G1 cell cycle arrest to optimize biotherapeutic protein production.

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.
Claim 7application potentialsupports2023Source 1needs review

Light-controllable p21 in producer cell lines could be applied to uncouple cell proliferation from G1 cell cycle arrest to optimize biotherapeutic protein production.

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.
Claim 8application potentialsupports2023Source 1needs review

Light-controllable p21 in producer cell lines could be applied to uncouple cell proliferation from G1 cell cycle arrest to optimize biotherapeutic protein production.

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.
Claim 9application potentialsupports2023Source 1needs review

Light-controllable p21 in producer cell lines could be applied to uncouple cell proliferation from G1 cell cycle arrest to optimize biotherapeutic protein production.

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.
Claim 10application potentialsupports2023Source 1needs review

Light-controllable p21 in producer cell lines could be applied to uncouple cell proliferation from G1 cell cycle arrest to optimize biotherapeutic protein production.

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.
Claim 11application potentialsupports2023Source 1needs review

Light-controllable p21 in producer cell lines could be applied to uncouple cell proliferation from G1 cell cycle arrest to optimize biotherapeutic protein production.

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.
Claim 12application potentialsupports2023Source 1needs review

Light-controllable p21 in producer cell lines could be applied to uncouple cell proliferation from G1 cell cycle arrest to optimize biotherapeutic protein production.

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.
Claim 13application potentialsupports2023Source 1needs review

Light-controllable p21 in producer cell lines could be applied to uncouple cell proliferation from G1 cell cycle arrest to optimize biotherapeutic protein production.

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.
Claim 14application potentialsupports2023Source 1needs review

Light-controllable p21 in producer cell lines could be applied to uncouple cell proliferation from G1 cell cycle arrest to optimize biotherapeutic protein production.

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.
Claim 15application potentialsupports2023Source 1needs review

Light-controllable p21 in producer cell lines could be applied to uncouple cell proliferation from G1 cell cycle arrest to optimize biotherapeutic protein production.

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.
Claim 16application potentialsupports2023Source 1needs review

Light-controllable p21 in producer cell lines could be applied to uncouple cell proliferation from G1 cell cycle arrest to optimize biotherapeutic protein production.

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.
Claim 17application potentialsupports2023Source 1needs review

Light-controllable p21 in producer cell lines could be applied to uncouple cell proliferation from G1 cell cycle arrest to optimize biotherapeutic protein production.

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.
Claim 18cell cycle arrestsupports2023Source 1needs review

Both p21-CRY2/CIB1 and p21-LINuS increased the amount of cells arrested in the G1 phase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase
Claim 19cell cycle arrestsupports2023Source 1needs review

Both p21-CRY2/CIB1 and p21-LINuS increased the amount of cells arrested in the G1 phase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase
Claim 20cell cycle arrestsupports2023Source 1needs review

Both p21-CRY2/CIB1 and p21-LINuS increased the amount of cells arrested in the G1 phase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase
Claim 21cell cycle arrestsupports2023Source 1needs review

Both p21-CRY2/CIB1 and p21-LINuS increased the amount of cells arrested in the G1 phase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase
Claim 22cell cycle arrestsupports2023Source 1needs review

Both p21-CRY2/CIB1 and p21-LINuS increased the amount of cells arrested in the G1 phase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase
Claim 23cell cycle arrestsupports2023Source 1needs review

Both p21-CRY2/CIB1 and p21-LINuS increased the amount of cells arrested in the G1 phase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase
Claim 24cell cycle arrestsupports2023Source 1needs review

Both p21-CRY2/CIB1 and p21-LINuS increased the amount of cells arrested in the G1 phase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase
Claim 25cell cycle arrestsupports2023Source 1needs review

Both p21-CRY2/CIB1 and p21-LINuS increased the amount of cells arrested in the G1 phase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase
Claim 26cell cycle arrestsupports2023Source 1needs review

Both p21-CRY2/CIB1 and p21-LINuS increased the amount of cells arrested in the G1 phase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase
Claim 27cell cycle arrestsupports2023Source 1needs review

Both p21-CRY2/CIB1 and p21-LINuS increased the amount of cells arrested in the G1 phase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase
Claim 28cell cycle arrestsupports2023Source 1needs review

Both p21-CRY2/CIB1 and p21-LINuS increased the amount of cells arrested in the G1 phase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase
Claim 29cell cycle arrestsupports2023Source 1needs review

Both p21-CRY2/CIB1 and p21-LINuS increased the amount of cells arrested in the G1 phase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase
Claim 30cell cycle arrestsupports2023Source 1needs review

Both p21-CRY2/CIB1 and p21-LINuS increased the amount of cells arrested in the G1 phase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase
Claim 31cell cycle arrestsupports2023Source 1needs review

Both p21-CRY2/CIB1 and p21-LINuS increased the amount of cells arrested in the G1 phase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase
Claim 32cell cycle arrestsupports2023Source 1needs review

Both p21-CRY2/CIB1 and p21-LINuS increased the amount of cells arrested in the G1 phase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase
Claim 33cell cycle arrestsupports2023Source 1needs review

Both p21-CRY2/CIB1 and p21-LINuS increased the amount of cells arrested in the G1 phase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase
Claim 34cell cycle arrestsupports2023Source 1needs review

Both p21-CRY2/CIB1 and p21-LINuS increased the amount of cells arrested in the G1 phase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase
Claim 35functional effectsupports2023Source 1needs review

Optogenetically controlled p21 systems were used to control the subcellular localization and nuclear functions of p21.

Here, we applied an optogenetic approach to control the subcellular localization of p21 and its nuclear functions.
Claim 36functional effectsupports2023Source 1needs review

Optogenetically controlled p21 systems were used to control the subcellular localization and nuclear functions of p21.

Here, we applied an optogenetic approach to control the subcellular localization of p21 and its nuclear functions.
Claim 37functional effectsupports2023Source 1needs review

Optogenetically controlled p21 systems were used to control the subcellular localization and nuclear functions of p21.

Here, we applied an optogenetic approach to control the subcellular localization of p21 and its nuclear functions.
Claim 38functional effectsupports2023Source 1needs review

Optogenetically controlled p21 systems were used to control the subcellular localization and nuclear functions of p21.

Here, we applied an optogenetic approach to control the subcellular localization of p21 and its nuclear functions.
Claim 39functional effectsupports2023Source 1needs review

Optogenetically controlled p21 systems were used to control the subcellular localization and nuclear functions of p21.

Here, we applied an optogenetic approach to control the subcellular localization of p21 and its nuclear functions.
Claim 40functional effectsupports2023Source 1needs review

Optogenetically controlled p21 systems were used to control the subcellular localization and nuclear functions of p21.

Here, we applied an optogenetic approach to control the subcellular localization of p21 and its nuclear functions.
Claim 41functional effectsupports2023Source 1needs review

Optogenetically controlled p21 systems were used to control the subcellular localization and nuclear functions of p21.

Here, we applied an optogenetic approach to control the subcellular localization of p21 and its nuclear functions.
Claim 42functional effectsupports2023Source 1needs review

Optogenetically controlled p21 systems were used to control the subcellular localization and nuclear functions of p21.

Here, we applied an optogenetic approach to control the subcellular localization of p21 and its nuclear functions.
Claim 43functional effectsupports2023Source 1needs review

Optogenetically controlled p21 systems were used to control the subcellular localization and nuclear functions of p21.

Here, we applied an optogenetic approach to control the subcellular localization of p21 and its nuclear functions.
Claim 44functional effectsupports2023Source 1needs review

Optogenetically controlled p21 systems were used to control the subcellular localization and nuclear functions of p21.

Here, we applied an optogenetic approach to control the subcellular localization of p21 and its nuclear functions.
Claim 45functional effectsupports2023Source 1needs review

Optogenetically controlled p21 systems were used to control the subcellular localization and nuclear functions of p21.

Here, we applied an optogenetic approach to control the subcellular localization of p21 and its nuclear functions.
Claim 46functional effectsupports2023Source 1needs review

Optogenetically controlled p21 systems were used to control the subcellular localization and nuclear functions of p21.

Here, we applied an optogenetic approach to control the subcellular localization of p21 and its nuclear functions.
Claim 47functional effectsupports2023Source 1needs review

Optogenetically controlled p21 systems were used to control the subcellular localization and nuclear functions of p21.

Here, we applied an optogenetic approach to control the subcellular localization of p21 and its nuclear functions.
Claim 48functional effectsupports2023Source 1needs review

Optogenetically controlled p21 systems were used to control the subcellular localization and nuclear functions of p21.

Here, we applied an optogenetic approach to control the subcellular localization of p21 and its nuclear functions.
Claim 49functional effectsupports2023Source 1needs review

Optogenetically controlled p21 systems were used to control the subcellular localization and nuclear functions of p21.

Here, we applied an optogenetic approach to control the subcellular localization of p21 and its nuclear functions.
Claim 50functional effectsupports2023Source 1needs review

Optogenetically controlled p21 systems were used to control the subcellular localization and nuclear functions of p21.

Here, we applied an optogenetic approach to control the subcellular localization of p21 and its nuclear functions.
Claim 51functional effectsupports2023Source 1needs review

Optogenetically controlled p21 systems were used to control the subcellular localization and nuclear functions of p21.

Here, we applied an optogenetic approach to control the subcellular localization of p21 and its nuclear functions.
Claim 52productivity effectsupports2023Source 1needs review

The increase in G1-arrested cells correlated with increased cell-specific productivity of secreted alkaline phosphatase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase correlating with the increased cell-specific productivity of the reporter-protein-secreted alkaline phosphatase.
Claim 53productivity effectsupports2023Source 1needs review

The increase in G1-arrested cells correlated with increased cell-specific productivity of secreted alkaline phosphatase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase correlating with the increased cell-specific productivity of the reporter-protein-secreted alkaline phosphatase.
Claim 54productivity effectsupports2023Source 1needs review

The increase in G1-arrested cells correlated with increased cell-specific productivity of secreted alkaline phosphatase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase correlating with the increased cell-specific productivity of the reporter-protein-secreted alkaline phosphatase.
Claim 55productivity effectsupports2023Source 1needs review

The increase in G1-arrested cells correlated with increased cell-specific productivity of secreted alkaline phosphatase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase correlating with the increased cell-specific productivity of the reporter-protein-secreted alkaline phosphatase.
Claim 56productivity effectsupports2023Source 1needs review

The increase in G1-arrested cells correlated with increased cell-specific productivity of secreted alkaline phosphatase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase correlating with the increased cell-specific productivity of the reporter-protein-secreted alkaline phosphatase.
Claim 57productivity effectsupports2023Source 1needs review

The increase in G1-arrested cells correlated with increased cell-specific productivity of secreted alkaline phosphatase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase correlating with the increased cell-specific productivity of the reporter-protein-secreted alkaline phosphatase.
Claim 58productivity effectsupports2023Source 1needs review

The increase in G1-arrested cells correlated with increased cell-specific productivity of secreted alkaline phosphatase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase correlating with the increased cell-specific productivity of the reporter-protein-secreted alkaline phosphatase.
Claim 59productivity effectsupports2023Source 1needs review

The increase in G1-arrested cells correlated with increased cell-specific productivity of secreted alkaline phosphatase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase correlating with the increased cell-specific productivity of the reporter-protein-secreted alkaline phosphatase.
Claim 60productivity effectsupports2023Source 1needs review

The increase in G1-arrested cells correlated with increased cell-specific productivity of secreted alkaline phosphatase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase correlating with the increased cell-specific productivity of the reporter-protein-secreted alkaline phosphatase.
Claim 61productivity effectsupports2023Source 1needs review

The increase in G1-arrested cells correlated with increased cell-specific productivity of secreted alkaline phosphatase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase correlating with the increased cell-specific productivity of the reporter-protein-secreted alkaline phosphatase.
Claim 62productivity effectsupports2023Source 1needs review

The increase in G1-arrested cells correlated with increased cell-specific productivity of secreted alkaline phosphatase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase correlating with the increased cell-specific productivity of the reporter-protein-secreted alkaline phosphatase.
Claim 63productivity effectsupports2023Source 1needs review

The increase in G1-arrested cells correlated with increased cell-specific productivity of secreted alkaline phosphatase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase correlating with the increased cell-specific productivity of the reporter-protein-secreted alkaline phosphatase.
Claim 64productivity effectsupports2023Source 1needs review

The increase in G1-arrested cells correlated with increased cell-specific productivity of secreted alkaline phosphatase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase correlating with the increased cell-specific productivity of the reporter-protein-secreted alkaline phosphatase.
Claim 65productivity effectsupports2023Source 1needs review

The increase in G1-arrested cells correlated with increased cell-specific productivity of secreted alkaline phosphatase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase correlating with the increased cell-specific productivity of the reporter-protein-secreted alkaline phosphatase.
Claim 66productivity effectsupports2023Source 1needs review

The increase in G1-arrested cells correlated with increased cell-specific productivity of secreted alkaline phosphatase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase correlating with the increased cell-specific productivity of the reporter-protein-secreted alkaline phosphatase.
Claim 67productivity effectsupports2023Source 1needs review

The increase in G1-arrested cells correlated with increased cell-specific productivity of secreted alkaline phosphatase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase correlating with the increased cell-specific productivity of the reporter-protein-secreted alkaline phosphatase.
Claim 68productivity effectsupports2023Source 1needs review

The increase in G1-arrested cells correlated with increased cell-specific productivity of secreted alkaline phosphatase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase correlating with the increased cell-specific productivity of the reporter-protein-secreted alkaline phosphatase.
Claim 69tunabilitysupports2023Source 1needs review

Blue LED exposure interval and light dose enabled fine-tuning of the optogenetic p21 systems.

Varying the intervals of blue LED light exposure and the light dose enable the fine-tuning of the systems.
Claim 70tunabilitysupports2023Source 1needs review

Blue LED exposure interval and light dose enabled fine-tuning of the optogenetic p21 systems.

Varying the intervals of blue LED light exposure and the light dose enable the fine-tuning of the systems.
Claim 71tunabilitysupports2023Source 1needs review

Blue LED exposure interval and light dose enabled fine-tuning of the optogenetic p21 systems.

Varying the intervals of blue LED light exposure and the light dose enable the fine-tuning of the systems.
Claim 72tunabilitysupports2023Source 1needs review

Blue LED exposure interval and light dose enabled fine-tuning of the optogenetic p21 systems.

Varying the intervals of blue LED light exposure and the light dose enable the fine-tuning of the systems.
Claim 73tunabilitysupports2023Source 1needs review

Blue LED exposure interval and light dose enabled fine-tuning of the optogenetic p21 systems.

Varying the intervals of blue LED light exposure and the light dose enable the fine-tuning of the systems.
Claim 74tunabilitysupports2023Source 1needs review

Blue LED exposure interval and light dose enabled fine-tuning of the optogenetic p21 systems.

Varying the intervals of blue LED light exposure and the light dose enable the fine-tuning of the systems.
Claim 75tunabilitysupports2023Source 1needs review

Blue LED exposure interval and light dose enabled fine-tuning of the optogenetic p21 systems.

Varying the intervals of blue LED light exposure and the light dose enable the fine-tuning of the systems.
Claim 76tunabilitysupports2023Source 1needs review

Blue LED exposure interval and light dose enabled fine-tuning of the optogenetic p21 systems.

Varying the intervals of blue LED light exposure and the light dose enable the fine-tuning of the systems.
Claim 77tunabilitysupports2023Source 1needs review

Blue LED exposure interval and light dose enabled fine-tuning of the optogenetic p21 systems.

Varying the intervals of blue LED light exposure and the light dose enable the fine-tuning of the systems.
Claim 78tunabilitysupports2023Source 1needs review

Blue LED exposure interval and light dose enabled fine-tuning of the optogenetic p21 systems.

Varying the intervals of blue LED light exposure and the light dose enable the fine-tuning of the systems.
Claim 79tunabilitysupports2023Source 1needs review

Blue LED exposure interval and light dose enabled fine-tuning of the optogenetic p21 systems.

Varying the intervals of blue LED light exposure and the light dose enable the fine-tuning of the systems.
Claim 80tunabilitysupports2023Source 1needs review

Blue LED exposure interval and light dose enabled fine-tuning of the optogenetic p21 systems.

Varying the intervals of blue LED light exposure and the light dose enable the fine-tuning of the systems.
Claim 81tunabilitysupports2023Source 1needs review

Blue LED exposure interval and light dose enabled fine-tuning of the optogenetic p21 systems.

Varying the intervals of blue LED light exposure and the light dose enable the fine-tuning of the systems.
Claim 82tunabilitysupports2023Source 1needs review

Blue LED exposure interval and light dose enabled fine-tuning of the optogenetic p21 systems.

Varying the intervals of blue LED light exposure and the light dose enable the fine-tuning of the systems.
Claim 83tunabilitysupports2023Source 1needs review

Blue LED exposure interval and light dose enabled fine-tuning of the optogenetic p21 systems.

Varying the intervals of blue LED light exposure and the light dose enable the fine-tuning of the systems.
Claim 84tunabilitysupports2023Source 1needs review

Blue LED exposure interval and light dose enabled fine-tuning of the optogenetic p21 systems.

Varying the intervals of blue LED light exposure and the light dose enable the fine-tuning of the systems.
Claim 85tunabilitysupports2023Source 1needs review

Blue LED exposure interval and light dose enabled fine-tuning of the optogenetic p21 systems.

Varying the intervals of blue LED light exposure and the light dose enable the fine-tuning of the systems.

Approval Evidence

1 source5 linked approval claimsfirst-pass slug p21-cry2-cib1
To generate light-controllable p21, appropriate fusions with the blue light switch cryptochrome 2/CIBN ... were used. Both systems, p21-CRY2/CIB1 and p21-LINuS...

Source:

application potentialsupports

Light-controllable p21 in producer cell lines could be applied to uncouple cell proliferation from G1 cell cycle arrest to optimize biotherapeutic protein production.

Light-controllable p21 implemented in producer cell lines could be applied to steer the uncoupling of cell proliferation and cell cycle arrest at the G1 phase optimizing the production of biotherapeutic proteins.

Source:

cell cycle arrestsupports

Both p21-CRY2/CIB1 and p21-LINuS increased the amount of cells arrested in the G1 phase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase

Source:

functional effectsupports

Optogenetically controlled p21 systems were used to control the subcellular localization and nuclear functions of p21.

Here, we applied an optogenetic approach to control the subcellular localization of p21 and its nuclear functions.

Source:

productivity effectsupports

The increase in G1-arrested cells correlated with increased cell-specific productivity of secreted alkaline phosphatase.

Both systems, p21-CRY2/CIB1 and p21-LINuS, increased the amounts of cells arrested in the G1 phase correlating with the increased cell-specific productivity of the reporter-protein-secreted alkaline phosphatase.

Source:

tunabilitysupports

Blue LED exposure interval and light dose enabled fine-tuning of the optogenetic p21 systems.

Varying the intervals of blue LED light exposure and the light dose enable the fine-tuning of the systems.

Source:

Comparisons

Source-backed strengths

The tool is responsive to blue light and was experimentally used to regulate p21 localization and nuclear functions. In the cited work, p21-CRY2/CIB1 increased the proportion of cells arrested in G1 phase.

p21-CRY2/CIB1 and CRY2-talin/CIBN-CAAX optogenetic plasma membrane recruitment system address a similar problem space because they share localization, recombination.

Shared frame: same top-level item type; shared target processes: localization, recombination; shared mechanisms: membrane_recruitment; same primary input modality: light

Compared with FUN-LOV

p21-CRY2/CIB1 and FUN-LOV address a similar problem space because they share localization, recombination.

Shared frame: same top-level item type; shared target processes: localization, recombination; shared mechanisms: membrane_recruitment; same primary input modality: light

Relative tradeoffs: appears more independently replicated; looks easier to implement in practice.

Compared with iLID/SspB

p21-CRY2/CIB1 and iLID/SspB address a similar problem space because they share localization, recombination.

Shared frame: same top-level item type; shared target processes: localization, recombination; shared mechanisms: membrane recruitment, membrane_recruitment; same primary input modality: light

Relative tradeoffs: appears more independently replicated; looks easier to implement in practice.

Ranked Citations

  1. 1.

    Extracted from this source document.