What does this research mean for the field?

Salmonella enterica tryptophan synthase (SeTrpS) efficiently catalyzes the synthesis of diverse non-canonical tryptophan analogues from various substituted indoles and l-serine. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The aim is to explore the substrate scope of tryptophan synthase derived from Salmonella enterica to enhance the synthesis of non-canonical tryptophan derivatives.

March 14, 2026ChemCatChemOpen Access

Substrate Scope Expansion of Tryptophan Synthase for the Chemo‐Enzymatic Synthesis of Non‐Canonical Tryptophans

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Authors

CNCeleste NobbioPolitecnico di Milano DADario AlleviUniversità Cattolica del Sacro Cuore AIAntonia IazzettiUniversità Cattolica del Sacro Cuore

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Implication

Demonstrates the efficient synthesis of non-canonical tryptophans using tryptophan synthase, indicating its potential as a versatile biocatalyst.

Key Points

The aim is to explore the substrate scope of tryptophan synthase derived from Salmonella enterica to enhance the synthesis of non-canonical tryptophan derivatives.
Probing the substrate scope of SeTrpS using a library of synthetic indole derivatives
Testing indoles with various substituents including aryl and alkynyl groups
Scaling preparative reactions to evaluate yields and purity of synthesized compounds.
Moderate to high conversion rates observed for various indoles, especially those substituted at positions 6 and 7
Preparative reactions yielded l-7-ethynyltryptophan at 58% yield and l-5-phenyltryptophan at 25% yield
Excellent purity of synthesized tryptophan analogues was achieved.

Cite This Study

Nobbio et al. (2026) studied this question.

synapsesocial.com/papers/69b4fc7fb39f7826a300d5f9 https://doi.org/10.1002/cctc.202501808

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Implication

Demonstrates the efficient synthesis of non-canonical tryptophans using tryptophan synthase, indicating its potential as a versatile biocatalyst.

Substrate Scope Expansion of Tryptophan Synthase for the Chemo‐Enzymatic Synthesis of Non‐Canonical Tryptophans

Discussion

Member takes

Implication

Key Points

Cite This Study

Substrate Scope Expansion of Tryptophan Synthase for the Chemo‐Enzymatic Synthesis of Non‐Canonical Tryptophans

Discussion

Member takes

Implication

Key Points

Cite This Study

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