2021
DOI: 10.1002/anie.202011096
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In Vitro Production of Ergothioneine Isotopologues

Abstract: Ergothioneine is an emerging component of the redox homeostasis system in human cells and in microbial pathogens, such as Mycobacterium tuberculosis and Burkholderia pseudomallei. The synthesis of stable isotope-labeled ergothioneine derivatives may provide important tools for deciphering the distribution, function, and metabolism of this compound in vivo. We describe a general protocol for the production of ergothioneine isotopologues with programmable 2 H, 15 N, 13 C, 34 S, and 33 S isotope labeling patterns… Show more

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Cited by 18 publications
(18 citation statements)
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“…Feeding the same five-step pathway with isotope labeled ergothioneine ( 1a , Figure ) produced the same metabolites with the correspondingly higher masses (Table S3). Selenoneine ( 1b ), the naturally occurring selenium analog of ergothioneine, was also confirmed as a substrate of this pathway (Figure S15). , Glutamate is a central primary metabolite that is used as a building block for protein synthesis, as an amine donor for many transaminases, and–after oxidation to α-ketoglutarate–as a feedstock for the citric acid cycle.…”
Section: Results and Discussionmentioning
confidence: 90%
“…Feeding the same five-step pathway with isotope labeled ergothioneine ( 1a , Figure ) produced the same metabolites with the correspondingly higher masses (Table S3). Selenoneine ( 1b ), the naturally occurring selenium analog of ergothioneine, was also confirmed as a substrate of this pathway (Figure S15). , Glutamate is a central primary metabolite that is used as a building block for protein synthesis, as an amine donor for many transaminases, and–after oxidation to α-ketoglutarate–as a feedstock for the citric acid cycle.…”
Section: Results and Discussionmentioning
confidence: 90%
“…The remarkable SAM cofactor recycling system by Liao and Seebeck [12] (Figure 1 B) has the potential to enzymatically synthesize and recycle non‐natural SAM analogs (NSA) from readily available haloalkanes as alkyl donors [40] . While this system is currently limited to methylation, [12, 41, 42] we envisioned to expand its application towards general alkyl transfer. Key in this endeavor is to find promiscuous halide methyl transferases (HMT) that accept different haloalkanes apart from iodomethane as substrates.…”
Section: Resultsmentioning
confidence: 99%
“…Das bemerkenswerte Cofaktor‐Regenerations‐System für SAM von Liao und Seebeck [12] (Abbildung 1 B) hat das Potenzial, nicht‐natürliche SAM‐Analoga (NSA) enzymatisch aus leicht verfügbaren Halogenalkanen als Alkyldonoren zu synthetisieren und zu regenerieren [40] . Während dieses System derzeit auf Methylierungsreaktionen beschränkt ist, [12, 41, 42] beabsichtigten wir eine Erweiterung auf einen allgemeinen Alkyltransfer. Hierfür strebten wir an, eine promiskuitive Halogenid‐Methyltransferase (HMT) zu finden, die neben Iodmethan auch andere Halogenalkane als Substrate akzeptiert.…”
Section: Ergebnisse Und Diskussionunclassified