Toolkit/αSH2-OptoMB

αSH2-OptoMB

Multi-Component Switch·Research·Since 2020

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

Summary

αSH2-OptoMB is a light-sensitive monobody in the OptoBinder class engineered to bind an SH2-domain target with an approximately 300-fold light-dependent affinity shift. It has been demonstrated as an affinity reagent for light-controlled purification of SH2-tagged proteins.

Usefulness & Problems

Why this is useful

αSH2-OptoMB is useful as a reversible, light-regulated affinity binder for SH2-tagged proteins, enabling dynamic control of target capture and release. The cited study demonstrates its use for direct purification from crude Escherichia coli extract in a single step.

Source:

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step

Source:

a light-controlled monobody (OptoMB) that works in vitro and in vivo , whose affinity for its SH2-domain target exhibits a 300-fold shift in binding affinity upon illumination

Problem solved

This tool addresses the need for externally controllable protein binders that can modulate target affinity with light rather than only static binding. In the reported application, it solves single-step purification of SH2-tagged proteins from crude bacterial lysate.

Source:

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step

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

No target processes tagged yet.

Implementation Constraints

cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationimplementation constraint: multi component delivery burdenoperating role: actuatorswitch architecture: multi component

The available evidence indicates use as an affinity reagent for SH2-tagged proteins and validation in crude E. coli extract. The supplied material does not provide construct architecture, chromophore requirements, expression conditions, or illumination wavelength details.

The supplied evidence supports purification of SH2-tagged proteins, but provides little detail here on broader target scope, kinetics, illumination parameters, or performance in other cellular contexts. The claim that OptoBinders could be designed for untagged proteins is presented as potential rather than direct validation for αSH2-OptoMB itself.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1applicationsupports2020Source 1needs review

αSH2-OptoMB can purify SH2-tagged proteins directly from crude E. coli extract in a single purification step with 99.8% purity and over 40% yield.

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step
purification steps 1 steppurity 99.8 %yield 40 %
Claim 2applicationsupports2020Source 1needs review

αSH2-OptoMB can purify SH2-tagged proteins directly from crude E. coli extract in a single purification step with 99.8% purity and over 40% yield.

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step
purification steps 1 steppurity 99.8 %yield 40 %
Claim 3applicationsupports2020Source 1needs review

αSH2-OptoMB can purify SH2-tagged proteins directly from crude E. coli extract in a single purification step with 99.8% purity and over 40% yield.

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step
purification steps 1 steppurity 99.8 %yield 40 %
Claim 4applicationsupports2020Source 1needs review

αSH2-OptoMB can purify SH2-tagged proteins directly from crude E. coli extract in a single purification step with 99.8% purity and over 40% yield.

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step
purification steps 1 steppurity 99.8 %yield 40 %
Claim 5applicationsupports2020Source 1needs review

αSH2-OptoMB can purify SH2-tagged proteins directly from crude E. coli extract in a single purification step with 99.8% purity and over 40% yield.

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step
purification steps 1 steppurity 99.8 %yield 40 %
Claim 6applicationsupports2020Source 1needs review

αSH2-OptoMB can purify SH2-tagged proteins directly from crude E. coli extract in a single purification step with 99.8% purity and over 40% yield.

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step
purification steps 1 steppurity 99.8 %yield 40 %
Claim 7applicationsupports2020Source 1needs review

αSH2-OptoMB can purify SH2-tagged proteins directly from crude E. coli extract in a single purification step with 99.8% purity and over 40% yield.

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step
purification steps 1 steppurity 99.8 %yield 40 %
Claim 8applicationsupports2020Source 1needs review

αSH2-OptoMB can purify SH2-tagged proteins directly from crude E. coli extract in a single purification step with 99.8% purity and over 40% yield.

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step
purification steps 1 steppurity 99.8 %yield 40 %
Claim 9applicationsupports2020Source 1needs review

αSH2-OptoMB can purify SH2-tagged proteins directly from crude E. coli extract in a single purification step with 99.8% purity and over 40% yield.

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step
purification steps 1 steppurity 99.8 %yield 40 %
Claim 10applicationsupports2020Source 1needs review

αSH2-OptoMB can purify SH2-tagged proteins directly from crude E. coli extract in a single purification step with 99.8% purity and over 40% yield.

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step
purification steps 1 steppurity 99.8 %yield 40 %
Claim 11applicationsupports2020Source 1needs review

αSH2-OptoMB can purify SH2-tagged proteins directly from crude E. coli extract in a single purification step with 99.8% purity and over 40% yield.

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step
purification steps 1 steppurity 99.8 %yield 40 %
Claim 12applicationsupports2020Source 1needs review

αSH2-OptoMB can purify SH2-tagged proteins directly from crude E. coli extract in a single purification step with 99.8% purity and over 40% yield.

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step
purification steps 1 steppurity 99.8 %yield 40 %
Claim 13applicationsupports2020Source 1needs review

αSH2-OptoMB can purify SH2-tagged proteins directly from crude E. coli extract in a single purification step with 99.8% purity and over 40% yield.

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step
purification steps 1 steppurity 99.8 %yield 40 %
Claim 14applicationsupports2020Source 1needs review

αSH2-OptoMB can purify SH2-tagged proteins directly from crude E. coli extract in a single purification step with 99.8% purity and over 40% yield.

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step
purification steps 1 steppurity 99.8 %yield 40 %
Claim 15applicationsupports2020Source 1needs review

αSH2-OptoMB can purify SH2-tagged proteins directly from crude E. coli extract in a single purification step with 99.8% purity and over 40% yield.

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step
purification steps 1 steppurity 99.8 %yield 40 %
Claim 16applicationsupports2020Source 1needs review

αSH2-OptoMB can purify SH2-tagged proteins directly from crude E. coli extract in a single purification step with 99.8% purity and over 40% yield.

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step
purification steps 1 steppurity 99.8 %yield 40 %
Claim 17applicationsupports2020Source 1needs review

αSH2-OptoMB can purify SH2-tagged proteins directly from crude E. coli extract in a single purification step with 99.8% purity and over 40% yield.

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step
purification steps 1 steppurity 99.8 %yield 40 %
Claim 18class membershipsupports2020Source 1needs review

OptoMB belongs to a class of light-sensitive protein binders called OptoBinders.

This OptoMB belongs to a new class of light-sensitive protein binders we call OptoBinders (OptoBNDRs)
Claim 19class membershipsupports2020Source 1needs review

OptoMB belongs to a class of light-sensitive protein binders called OptoBinders.

This OptoMB belongs to a new class of light-sensitive protein binders we call OptoBinders (OptoBNDRs)
Claim 20class membershipsupports2020Source 1needs review

OptoMB belongs to a class of light-sensitive protein binders called OptoBinders.

This OptoMB belongs to a new class of light-sensitive protein binders we call OptoBinders (OptoBNDRs)
Claim 21class membershipsupports2020Source 1needs review

OptoMB belongs to a class of light-sensitive protein binders called OptoBinders.

This OptoMB belongs to a new class of light-sensitive protein binders we call OptoBinders (OptoBNDRs)
Claim 22class membershipsupports2020Source 1needs review

OptoMB belongs to a class of light-sensitive protein binders called OptoBinders.

This OptoMB belongs to a new class of light-sensitive protein binders we call OptoBinders (OptoBNDRs)
Claim 23class membershipsupports2020Source 1needs review

OptoMB belongs to a class of light-sensitive protein binders called OptoBinders.

This OptoMB belongs to a new class of light-sensitive protein binders we call OptoBinders (OptoBNDRs)
Claim 24class membershipsupports2020Source 1needs review

OptoMB belongs to a class of light-sensitive protein binders called OptoBinders.

This OptoMB belongs to a new class of light-sensitive protein binders we call OptoBinders (OptoBNDRs)
Claim 25class membershipsupports2020Source 1needs review

OptoMB belongs to a class of light-sensitive protein binders called OptoBinders.

This OptoMB belongs to a new class of light-sensitive protein binders we call OptoBinders (OptoBNDRs)
Claim 26class membershipsupports2020Source 1needs review

OptoMB belongs to a class of light-sensitive protein binders called OptoBinders.

This OptoMB belongs to a new class of light-sensitive protein binders we call OptoBinders (OptoBNDRs)
Claim 27class membershipsupports2020Source 1needs review

OptoMB belongs to a class of light-sensitive protein binders called OptoBinders.

This OptoMB belongs to a new class of light-sensitive protein binders we call OptoBinders (OptoBNDRs)
Claim 28design potentialsupports2020Source 1needs review

OptoBinders have the potential to be designed to bind proteins of interest as light-switchable binders of untagged proteins with high affinity and selectivity.

OptoBinders (OptoBNDRs) which, by virtue of their ability to be designed to bind any protein of interest, have the potential to find new powerful applications as light-switchable binders of untagged proteins with high affinity and selectivity
Claim 29design potentialsupports2020Source 1needs review

OptoBinders have the potential to be designed to bind proteins of interest as light-switchable binders of untagged proteins with high affinity and selectivity.

OptoBinders (OptoBNDRs) which, by virtue of their ability to be designed to bind any protein of interest, have the potential to find new powerful applications as light-switchable binders of untagged proteins with high affinity and selectivity
Claim 30design potentialsupports2020Source 1needs review

OptoBinders have the potential to be designed to bind proteins of interest as light-switchable binders of untagged proteins with high affinity and selectivity.

OptoBinders (OptoBNDRs) which, by virtue of their ability to be designed to bind any protein of interest, have the potential to find new powerful applications as light-switchable binders of untagged proteins with high affinity and selectivity
Claim 31design potentialsupports2020Source 1needs review

OptoBinders have the potential to be designed to bind proteins of interest as light-switchable binders of untagged proteins with high affinity and selectivity.

OptoBinders (OptoBNDRs) which, by virtue of their ability to be designed to bind any protein of interest, have the potential to find new powerful applications as light-switchable binders of untagged proteins with high affinity and selectivity
Claim 32design potentialsupports2020Source 1needs review

OptoBinders have the potential to be designed to bind proteins of interest as light-switchable binders of untagged proteins with high affinity and selectivity.

OptoBinders (OptoBNDRs) which, by virtue of their ability to be designed to bind any protein of interest, have the potential to find new powerful applications as light-switchable binders of untagged proteins with high affinity and selectivity
Claim 33design potentialsupports2020Source 1needs review

OptoBinders have the potential to be designed to bind proteins of interest as light-switchable binders of untagged proteins with high affinity and selectivity.

OptoBinders (OptoBNDRs) which, by virtue of their ability to be designed to bind any protein of interest, have the potential to find new powerful applications as light-switchable binders of untagged proteins with high affinity and selectivity
Claim 34design potentialsupports2020Source 1needs review

OptoBinders have the potential to be designed to bind proteins of interest as light-switchable binders of untagged proteins with high affinity and selectivity.

OptoBinders (OptoBNDRs) which, by virtue of their ability to be designed to bind any protein of interest, have the potential to find new powerful applications as light-switchable binders of untagged proteins with high affinity and selectivity
Claim 35design potentialsupports2020Source 1needs review

OptoBinders have the potential to be designed to bind proteins of interest as light-switchable binders of untagged proteins with high affinity and selectivity.

OptoBinders (OptoBNDRs) which, by virtue of their ability to be designed to bind any protein of interest, have the potential to find new powerful applications as light-switchable binders of untagged proteins with high affinity and selectivity
Claim 36design potentialsupports2020Source 1needs review

OptoBinders have the potential to be designed to bind proteins of interest as light-switchable binders of untagged proteins with high affinity and selectivity.

OptoBinders (OptoBNDRs) which, by virtue of their ability to be designed to bind any protein of interest, have the potential to find new powerful applications as light-switchable binders of untagged proteins with high affinity and selectivity
Claim 37design potentialsupports2020Source 1needs review

OptoBinders have the potential to be designed to bind proteins of interest as light-switchable binders of untagged proteins with high affinity and selectivity.

OptoBinders (OptoBNDRs) which, by virtue of their ability to be designed to bind any protein of interest, have the potential to find new powerful applications as light-switchable binders of untagged proteins with high affinity and selectivity
Claim 38functional modulationsupports2020Source 1needs review

OptoMB is a light-controlled monobody whose affinity for its SH2-domain target shifts by 300-fold upon illumination.

a light-controlled monobody (OptoMB) that works in vitro and in vivo , whose affinity for its SH2-domain target exhibits a 300-fold shift in binding affinity upon illumination
binding affinity shift upon illumination 300 fold
Claim 39functional modulationsupports2020Source 1needs review

OptoMB is a light-controlled monobody whose affinity for its SH2-domain target shifts by 300-fold upon illumination.

a light-controlled monobody (OptoMB) that works in vitro and in vivo , whose affinity for its SH2-domain target exhibits a 300-fold shift in binding affinity upon illumination
binding affinity shift upon illumination 300 fold
Claim 40functional modulationsupports2020Source 1needs review

OptoMB is a light-controlled monobody whose affinity for its SH2-domain target shifts by 300-fold upon illumination.

a light-controlled monobody (OptoMB) that works in vitro and in vivo , whose affinity for its SH2-domain target exhibits a 300-fold shift in binding affinity upon illumination
binding affinity shift upon illumination 300 fold
Claim 41functional modulationsupports2020Source 1needs review

OptoMB is a light-controlled monobody whose affinity for its SH2-domain target shifts by 300-fold upon illumination.

a light-controlled monobody (OptoMB) that works in vitro and in vivo , whose affinity for its SH2-domain target exhibits a 300-fold shift in binding affinity upon illumination
binding affinity shift upon illumination 300 fold
Claim 42functional modulationsupports2020Source 1needs review

OptoMB is a light-controlled monobody whose affinity for its SH2-domain target shifts by 300-fold upon illumination.

a light-controlled monobody (OptoMB) that works in vitro and in vivo , whose affinity for its SH2-domain target exhibits a 300-fold shift in binding affinity upon illumination
binding affinity shift upon illumination 300 fold
Claim 43functional modulationsupports2020Source 1needs review

OptoMB is a light-controlled monobody whose affinity for its SH2-domain target shifts by 300-fold upon illumination.

a light-controlled monobody (OptoMB) that works in vitro and in vivo , whose affinity for its SH2-domain target exhibits a 300-fold shift in binding affinity upon illumination
binding affinity shift upon illumination 300 fold
Claim 44functional modulationsupports2020Source 1needs review

OptoMB is a light-controlled monobody whose affinity for its SH2-domain target shifts by 300-fold upon illumination.

a light-controlled monobody (OptoMB) that works in vitro and in vivo , whose affinity for its SH2-domain target exhibits a 300-fold shift in binding affinity upon illumination
binding affinity shift upon illumination 300 fold
Claim 45functional modulationsupports2020Source 1needs review

OptoMB is a light-controlled monobody whose affinity for its SH2-domain target shifts by 300-fold upon illumination.

a light-controlled monobody (OptoMB) that works in vitro and in vivo , whose affinity for its SH2-domain target exhibits a 300-fold shift in binding affinity upon illumination
binding affinity shift upon illumination 300 fold
Claim 46functional modulationsupports2020Source 1needs review

OptoMB is a light-controlled monobody whose affinity for its SH2-domain target shifts by 300-fold upon illumination.

a light-controlled monobody (OptoMB) that works in vitro and in vivo , whose affinity for its SH2-domain target exhibits a 300-fold shift in binding affinity upon illumination
binding affinity shift upon illumination 300 fold
Claim 47functional modulationsupports2020Source 1needs review

OptoMB is a light-controlled monobody whose affinity for its SH2-domain target shifts by 300-fold upon illumination.

a light-controlled monobody (OptoMB) that works in vitro and in vivo , whose affinity for its SH2-domain target exhibits a 300-fold shift in binding affinity upon illumination
binding affinity shift upon illumination 300 fold

Approval Evidence

1 source1 linked approval claimfirst-pass slug sh2-optomb
We demonstrate that our αSH2-OptoMB can be used to purify SH2-tagged proteins

Source:

applicationsupports

αSH2-OptoMB can purify SH2-tagged proteins directly from crude E. coli extract in a single purification step with 99.8% purity and over 40% yield.

our αSH2-OptoMB can be used to purify SH2-tagged proteins directly from crude E. coli extract, achieving 99.8% purity and over 40% yield in a single purification step

Source:

Comparisons

Source-backed strengths

The reported performance includes an approximately 300-fold light-dependent change in affinity and successful purification of SH2-tagged proteins. In the cited purification experiment, the tool achieved 99.8% purity with over 40% yield in a single step from crude E. coli extract.

Compared with ArrayG

αSH2-OptoMB and ArrayG address a similar problem space.

Shared frame: same top-level item type

Strengths here: looks easier to implement in practice.

Compared with Opto-RhoGEFs

αSH2-OptoMB and Opto-RhoGEFs address a similar problem space.

Shared frame: same top-level item type

Strengths here: looks easier to implement in practice.

αSH2-OptoMB and PmeR-OPmeR paraben-responsive mammalian transcription-control devices address a similar problem space.

Shared frame: same top-level item type

Ranked Citations

  1. 1.

    Extracted from this source document.