Toolkit/split sfCherry3 variants

split sfCherry3 variants

Protein Domain·Research·Since 2019

Also known as: sfCherry3 variants, split sfCherry3

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

Summary

Split sfCherry3 variants are engineered split red fluorescent proteins derived from sfCherry through directed evolution. They were reported to show substantially enhanced overall brightness and to support visualization of endogenous proteins and neuronal synapses.

Usefulness & Problems

Why this is useful

These variants are useful as brighter split fluorescent protein tools for protein tagging and imaging applications where red fluorescence is advantageous. The reported work indicates utility for tagging endogenous proteins by gene editing and for multiplexed visualization of neuronal synapses in living Caenorhabditis elegans.

Source:

for multiplexed visualization of neuronal synapses in living C. elegans

Source:

facilitating the tagging of endogenous proteins by gene editing

Source:

Based on sfCherry3, we have further developed a new red-colored trans-synaptic marker called Neuroligin-1 sfCherry3 Linker Across Synaptic Partners (NLG-1 CLASP)

Problem solved

They address the limited brightness of earlier split red fluorescent proteins, which can constrain detection of tagged endogenous proteins and other low-abundance targets. The source specifically states that two split sfCherry3 variants were obtained with substantially enhanced overall brightness.

Source:

for multiplexed visualization of neuronal synapses in living C. elegans

Source:

facilitating the tagging of endogenous proteins by gene editing

Source:

Based on sfCherry3, we have further developed a new red-colored trans-synaptic marker called Neuroligin-1 sfCherry3 Linker Across Synaptic Partners (NLG-1 CLASP)

Taxonomy & Function

Primary hierarchy

Mechanism Branch

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

Target processes

editing

Implementation Constraints

The tool is a split fluorescent protein system based on sfCherry3 variants, implying use as separable fragments that reconstitute fluorescence upon complementation. The source also notes SpyTag/SpyCatcher interaction as an approach used to improve split fluorescent proteins, but the provided evidence does not specify exact construct architectures, fragment boundaries, or expression and delivery conditions for these variants.

The supplied evidence does not provide quantitative brightness values, complementation efficiency, maturation kinetics, or photostability measurements. Independent replication is not documented in the provided material, and validation evidence is limited to the cited 2019 study and its described applications.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1application demosupports2019Source 1needs review

NLG-1 CLASP enables multiplexed visualization of neuronal synapses in living C. elegans.

for multiplexed visualization of neuronal synapses in living C. elegans
Claim 2application demosupports2019Source 1needs review

NLG-1 CLASP enables multiplexed visualization of neuronal synapses in living C. elegans.

for multiplexed visualization of neuronal synapses in living C. elegans
Claim 3application demosupports2019Source 1needs review

NLG-1 CLASP enables multiplexed visualization of neuronal synapses in living C. elegans.

for multiplexed visualization of neuronal synapses in living C. elegans
Claim 4application demosupports2019Source 1needs review

NLG-1 CLASP enables multiplexed visualization of neuronal synapses in living C. elegans.

for multiplexed visualization of neuronal synapses in living C. elegans
Claim 5application demosupports2019Source 1needs review

NLG-1 CLASP enables multiplexed visualization of neuronal synapses in living C. elegans.

for multiplexed visualization of neuronal synapses in living C. elegans
Claim 6application demosupports2019Source 1needs review

NLG-1 CLASP enables multiplexed visualization of neuronal synapses in living C. elegans.

for multiplexed visualization of neuronal synapses in living C. elegans
Claim 7application demosupports2019Source 1needs review

NLG-1 CLASP enables multiplexed visualization of neuronal synapses in living C. elegans.

for multiplexed visualization of neuronal synapses in living C. elegans
Claim 8application enablementsupports2019Source 1needs review

The split sfCherry3 variants facilitate tagging of endogenous proteins by gene editing.

facilitating the tagging of endogenous proteins by gene editing
Claim 9application enablementsupports2019Source 1needs review

The split sfCherry3 variants facilitate tagging of endogenous proteins by gene editing.

facilitating the tagging of endogenous proteins by gene editing
Claim 10application enablementsupports2019Source 1needs review

The split sfCherry3 variants facilitate tagging of endogenous proteins by gene editing.

facilitating the tagging of endogenous proteins by gene editing
Claim 11application enablementsupports2019Source 1needs review

The split sfCherry3 variants facilitate tagging of endogenous proteins by gene editing.

facilitating the tagging of endogenous proteins by gene editing
Claim 12application enablementsupports2019Source 1needs review

The split sfCherry3 variants facilitate tagging of endogenous proteins by gene editing.

facilitating the tagging of endogenous proteins by gene editing
Claim 13application enablementsupports2019Source 1needs review

The split sfCherry3 variants facilitate tagging of endogenous proteins by gene editing.

facilitating the tagging of endogenous proteins by gene editing
Claim 14application enablementsupports2019Source 1needs review

The split sfCherry3 variants facilitate tagging of endogenous proteins by gene editing.

facilitating the tagging of endogenous proteins by gene editing
Claim 15method improvementsupports2019Source 1needs review

SpyTag/SpyCatcher interaction and directed evolution were demonstrated as two approaches to improve split fluorescent proteins.

we have demonstrated two approaches to improve split FPs: assistance through SpyTag/SpyCatcher interaction and directed evolution
Claim 16method improvementsupports2019Source 1needs review

SpyTag/SpyCatcher interaction and directed evolution were demonstrated as two approaches to improve split fluorescent proteins.

we have demonstrated two approaches to improve split FPs: assistance through SpyTag/SpyCatcher interaction and directed evolution
Claim 17method improvementsupports2019Source 1needs review

SpyTag/SpyCatcher interaction and directed evolution were demonstrated as two approaches to improve split fluorescent proteins.

we have demonstrated two approaches to improve split FPs: assistance through SpyTag/SpyCatcher interaction and directed evolution
Claim 18method improvementsupports2019Source 1needs review

SpyTag/SpyCatcher interaction and directed evolution were demonstrated as two approaches to improve split fluorescent proteins.

we have demonstrated two approaches to improve split FPs: assistance through SpyTag/SpyCatcher interaction and directed evolution
Claim 19method improvementsupports2019Source 1needs review

SpyTag/SpyCatcher interaction and directed evolution were demonstrated as two approaches to improve split fluorescent proteins.

we have demonstrated two approaches to improve split FPs: assistance through SpyTag/SpyCatcher interaction and directed evolution
Claim 20method improvementsupports2019Source 1needs review

SpyTag/SpyCatcher interaction and directed evolution were demonstrated as two approaches to improve split fluorescent proteins.

we have demonstrated two approaches to improve split FPs: assistance through SpyTag/SpyCatcher interaction and directed evolution
Claim 21method improvementsupports2019Source 1needs review

SpyTag/SpyCatcher interaction and directed evolution were demonstrated as two approaches to improve split fluorescent proteins.

we have demonstrated two approaches to improve split FPs: assistance through SpyTag/SpyCatcher interaction and directed evolution
Claim 22performance improvementsupports2019Source 1needs review

Directed evolution yielded two split sfCherry3 variants with substantially enhanced overall brightness.

The latter has yielded two split sfCherry3 variants with substantially enhanced overall brightness
Claim 23performance improvementsupports2019Source 1needs review

Directed evolution yielded two split sfCherry3 variants with substantially enhanced overall brightness.

The latter has yielded two split sfCherry3 variants with substantially enhanced overall brightness
Claim 24performance improvementsupports2019Source 1needs review

Directed evolution yielded two split sfCherry3 variants with substantially enhanced overall brightness.

The latter has yielded two split sfCherry3 variants with substantially enhanced overall brightness
Claim 25performance improvementsupports2019Source 1needs review

Directed evolution yielded two split sfCherry3 variants with substantially enhanced overall brightness.

The latter has yielded two split sfCherry3 variants with substantially enhanced overall brightness
Claim 26performance improvementsupports2019Source 1needs review

Directed evolution yielded two split sfCherry3 variants with substantially enhanced overall brightness.

The latter has yielded two split sfCherry3 variants with substantially enhanced overall brightness
Claim 27performance improvementsupports2019Source 1needs review

Directed evolution yielded two split sfCherry3 variants with substantially enhanced overall brightness.

The latter has yielded two split sfCherry3 variants with substantially enhanced overall brightness
Claim 28performance improvementsupports2019Source 1needs review

Directed evolution yielded two split sfCherry3 variants with substantially enhanced overall brightness.

The latter has yielded two split sfCherry3 variants with substantially enhanced overall brightness
Claim 29tool developmentsupports2019Source 1needs review

Based on sfCherry3, the authors developed a new red-colored trans-synaptic marker called NLG-1 CLASP.

Based on sfCherry3, we have further developed a new red-colored trans-synaptic marker called Neuroligin-1 sfCherry3 Linker Across Synaptic Partners (NLG-1 CLASP)
Claim 30tool developmentsupports2019Source 1needs review

Based on sfCherry3, the authors developed a new red-colored trans-synaptic marker called NLG-1 CLASP.

Based on sfCherry3, we have further developed a new red-colored trans-synaptic marker called Neuroligin-1 sfCherry3 Linker Across Synaptic Partners (NLG-1 CLASP)
Claim 31tool developmentsupports2019Source 1needs review

Based on sfCherry3, the authors developed a new red-colored trans-synaptic marker called NLG-1 CLASP.

Based on sfCherry3, we have further developed a new red-colored trans-synaptic marker called Neuroligin-1 sfCherry3 Linker Across Synaptic Partners (NLG-1 CLASP)
Claim 32tool developmentsupports2019Source 1needs review

Based on sfCherry3, the authors developed a new red-colored trans-synaptic marker called NLG-1 CLASP.

Based on sfCherry3, we have further developed a new red-colored trans-synaptic marker called Neuroligin-1 sfCherry3 Linker Across Synaptic Partners (NLG-1 CLASP)
Claim 33tool developmentsupports2019Source 1needs review

Based on sfCherry3, the authors developed a new red-colored trans-synaptic marker called NLG-1 CLASP.

Based on sfCherry3, we have further developed a new red-colored trans-synaptic marker called Neuroligin-1 sfCherry3 Linker Across Synaptic Partners (NLG-1 CLASP)
Claim 34tool developmentsupports2019Source 1needs review

Based on sfCherry3, the authors developed a new red-colored trans-synaptic marker called NLG-1 CLASP.

Based on sfCherry3, we have further developed a new red-colored trans-synaptic marker called Neuroligin-1 sfCherry3 Linker Across Synaptic Partners (NLG-1 CLASP)
Claim 35tool developmentsupports2019Source 1needs review

Based on sfCherry3, the authors developed a new red-colored trans-synaptic marker called NLG-1 CLASP.

Based on sfCherry3, we have further developed a new red-colored trans-synaptic marker called Neuroligin-1 sfCherry3 Linker Across Synaptic Partners (NLG-1 CLASP)

Approval Evidence

1 source3 linked approval claimsfirst-pass slug split-sfcherry3-variants
The latter has yielded two split sfCherry3 variants with substantially enhanced overall brightness

Source:

application enablementsupports

The split sfCherry3 variants facilitate tagging of endogenous proteins by gene editing.

facilitating the tagging of endogenous proteins by gene editing

Source:

performance improvementsupports

Directed evolution yielded two split sfCherry3 variants with substantially enhanced overall brightness.

The latter has yielded two split sfCherry3 variants with substantially enhanced overall brightness

Source:

tool developmentsupports

Based on sfCherry3, the authors developed a new red-colored trans-synaptic marker called NLG-1 CLASP.

Based on sfCherry3, we have further developed a new red-colored trans-synaptic marker called Neuroligin-1 sfCherry3 Linker Across Synaptic Partners (NLG-1 CLASP)

Source:

Comparisons

Source-backed strengths

The main reported strength is substantially enhanced overall brightness relative to prior split sfCherry designs. The variants were also demonstrated in application contexts including endogenous protein tagging by gene editing and NLG-1 CLASP-based multiplexed synapse visualization in living C. elegans.

Source:

The latter has yielded two split sfCherry3 variants with substantially enhanced overall brightness

Ranked Citations

  1. 1.
    StructuralSource 1Communications Biology2019Claim 1Claim 2Claim 3

    Extracted from this source document.