Toolkit/de novo tripeptides containing glycine, tyrosine, and lysine

de novo tripeptides containing glycine, tyrosine, and lysine

Multi-Component Switch·Research·Since 2019

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

Summary

De novo tripeptides composed of glycine, tyrosine, and lysine were reported to generate cyan fluorescence in vitro. The same study further indicates that amino acid identity and residue order modulate the fluorescent output, and that these peptides form robust dimer structures under moderate oxidizing conditions.

Usefulness & Problems

Why this is useful

These tripeptides are useful as a minimal peptide-based fluorescent system for studying how very short sequences can encode optical output. The reported sensitivity of fluorescence to residue identity and sequence also makes them a compact model for probing sequence–function relationships in de novo peptides.

Source:

Herein, we report an innovative approach to obtain cyan fluorescence by using de novo tripeptides containing glycine, tyrosine, and lysine

Problem solved

This work addresses the problem of generating cyan fluorescence from an extremely small, de novo peptide scaffold rather than a larger canonical fluorescent protein. It also helps dissect how single-residue composition and sequence order influence fluorescence in such minimal systems.

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

The reported observations were made in vitro, and dimer formation was observed under moderate oxidizing conditions. Beyond the peptide composition of glycine, tyrosine, and lysine, the supplied evidence does not specify construct formats, delivery methods, expression systems, or cofactor requirements.

The available evidence is limited to a single in vitro study and does not provide quantitative performance metrics such as excitation/emission maxima, brightness, quantum yield, or photostability. No evidence is provided here for cellular validation, in vivo function, or generalizability beyond the tested tripeptide variants.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1functional propertysupports2019Source 1needs review

De novo tripeptides containing glycine, tyrosine, and lysine can generate cyan fluorescence.

Herein, we report an innovative approach to obtain cyan fluorescence by using de novo tripeptides containing glycine, tyrosine, and lysine
Claim 2functional propertysupports2019Source 1needs review

De novo tripeptides containing glycine, tyrosine, and lysine can generate cyan fluorescence.

Herein, we report an innovative approach to obtain cyan fluorescence by using de novo tripeptides containing glycine, tyrosine, and lysine
Claim 3functional propertysupports2019Source 1needs review

De novo tripeptides containing glycine, tyrosine, and lysine can generate cyan fluorescence.

Herein, we report an innovative approach to obtain cyan fluorescence by using de novo tripeptides containing glycine, tyrosine, and lysine
Claim 4functional propertysupports2019Source 1needs review

De novo tripeptides containing glycine, tyrosine, and lysine can generate cyan fluorescence.

Herein, we report an innovative approach to obtain cyan fluorescence by using de novo tripeptides containing glycine, tyrosine, and lysine
Claim 5functional propertysupports2019Source 1needs review

De novo tripeptides containing glycine, tyrosine, and lysine can generate cyan fluorescence.

Herein, we report an innovative approach to obtain cyan fluorescence by using de novo tripeptides containing glycine, tyrosine, and lysine
Claim 6functional propertysupports2019Source 1needs review

De novo tripeptides containing glycine, tyrosine, and lysine can generate cyan fluorescence.

Herein, we report an innovative approach to obtain cyan fluorescence by using de novo tripeptides containing glycine, tyrosine, and lysine
Claim 7functional propertysupports2019Source 1needs review

De novo tripeptides containing glycine, tyrosine, and lysine can generate cyan fluorescence.

Herein, we report an innovative approach to obtain cyan fluorescence by using de novo tripeptides containing glycine, tyrosine, and lysine
Claim 8sequence function relationshipsupports2019Source 1needs review

Both amino acid identity and sequence play significant roles in modulating fluorescence in the studied tripeptides.

Through an in vitro mutation approach, we deduce that both the amino acids and their sequence play significant roles in modulating the fluorescence.
Claim 9sequence function relationshipsupports2019Source 1needs review

Both amino acid identity and sequence play significant roles in modulating fluorescence in the studied tripeptides.

Through an in vitro mutation approach, we deduce that both the amino acids and their sequence play significant roles in modulating the fluorescence.
Claim 10sequence function relationshipsupports2019Source 1needs review

Both amino acid identity and sequence play significant roles in modulating fluorescence in the studied tripeptides.

Through an in vitro mutation approach, we deduce that both the amino acids and their sequence play significant roles in modulating the fluorescence.
Claim 11sequence function relationshipsupports2019Source 1needs review

Both amino acid identity and sequence play significant roles in modulating fluorescence in the studied tripeptides.

Through an in vitro mutation approach, we deduce that both the amino acids and their sequence play significant roles in modulating the fluorescence.
Claim 12sequence function relationshipsupports2019Source 1needs review

Both amino acid identity and sequence play significant roles in modulating fluorescence in the studied tripeptides.

Through an in vitro mutation approach, we deduce that both the amino acids and their sequence play significant roles in modulating the fluorescence.
Claim 13sequence function relationshipsupports2019Source 1needs review

Both amino acid identity and sequence play significant roles in modulating fluorescence in the studied tripeptides.

Through an in vitro mutation approach, we deduce that both the amino acids and their sequence play significant roles in modulating the fluorescence.
Claim 14sequence function relationshipsupports2019Source 1needs review

Both amino acid identity and sequence play significant roles in modulating fluorescence in the studied tripeptides.

Through an in vitro mutation approach, we deduce that both the amino acids and their sequence play significant roles in modulating the fluorescence.
Claim 15structural propertysupports2019Source 1needs review

The de novo tripeptides containing glycine, tyrosine, and lysine form robust dimer structures under moderate oxidizing conditions.

de novo tripeptides containing glycine, tyrosine, and lysine, which form robust dimer structures under moderate oxidizing conditions
Claim 16structural propertysupports2019Source 1needs review

The de novo tripeptides containing glycine, tyrosine, and lysine form robust dimer structures under moderate oxidizing conditions.

de novo tripeptides containing glycine, tyrosine, and lysine, which form robust dimer structures under moderate oxidizing conditions
Claim 17structural propertysupports2019Source 1needs review

The de novo tripeptides containing glycine, tyrosine, and lysine form robust dimer structures under moderate oxidizing conditions.

de novo tripeptides containing glycine, tyrosine, and lysine, which form robust dimer structures under moderate oxidizing conditions
Claim 18structural propertysupports2019Source 1needs review

The de novo tripeptides containing glycine, tyrosine, and lysine form robust dimer structures under moderate oxidizing conditions.

de novo tripeptides containing glycine, tyrosine, and lysine, which form robust dimer structures under moderate oxidizing conditions
Claim 19structural propertysupports2019Source 1needs review

The de novo tripeptides containing glycine, tyrosine, and lysine form robust dimer structures under moderate oxidizing conditions.

de novo tripeptides containing glycine, tyrosine, and lysine, which form robust dimer structures under moderate oxidizing conditions
Claim 20structural propertysupports2019Source 1needs review

The de novo tripeptides containing glycine, tyrosine, and lysine form robust dimer structures under moderate oxidizing conditions.

de novo tripeptides containing glycine, tyrosine, and lysine, which form robust dimer structures under moderate oxidizing conditions
Claim 21structural propertysupports2019Source 1needs review

The de novo tripeptides containing glycine, tyrosine, and lysine form robust dimer structures under moderate oxidizing conditions.

de novo tripeptides containing glycine, tyrosine, and lysine, which form robust dimer structures under moderate oxidizing conditions

Approval Evidence

1 source3 linked approval claimsfirst-pass slug de-novo-tripeptides-containing-glycine-tyrosine-and-lysine
Herein, we report an innovative approach to obtain cyan fluorescence by using de novo tripeptides containing glycine, tyrosine, and lysine

Source:

functional propertysupports

De novo tripeptides containing glycine, tyrosine, and lysine can generate cyan fluorescence.

Herein, we report an innovative approach to obtain cyan fluorescence by using de novo tripeptides containing glycine, tyrosine, and lysine

Source:

sequence function relationshipsupports

Both amino acid identity and sequence play significant roles in modulating fluorescence in the studied tripeptides.

Through an in vitro mutation approach, we deduce that both the amino acids and their sequence play significant roles in modulating the fluorescence.

Source:

structural propertysupports

The de novo tripeptides containing glycine, tyrosine, and lysine form robust dimer structures under moderate oxidizing conditions.

de novo tripeptides containing glycine, tyrosine, and lysine, which form robust dimer structures under moderate oxidizing conditions

Source:

Comparisons

Source-backed strengths

The reported tool is notable for achieving cyan fluorescence with only three amino acids: glycine, tyrosine, and lysine. The source study also reports that fluorescence is tunable by amino acid identity and sequence, and that the peptides form robust dimers under moderate oxidizing conditions.

Ranked Citations

  1. 1.
    StructuralSource 1ChemBioChem2019Claim 1Claim 2Claim 3

    Extracted from this source document.