Literature summary for 1.14.11.78 extracted from

Li, H.; Liu, Y.
Mechanistic investigation of isonitrile formation catalyzed by the nonheme iron/alpha-KG-dependent decarboxylase (ScoE) (2020), ACS Catal., 10, 2942-2957 .

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Organism

Organism	UniProt	Comment	Textmining
Streptomyces coeruleorubidus	A0A3B6UEU3	-	-

General Information

General Information	Comment	Organism
metabolism	the ScoE-catalyzed reaction contains two decoupled parts, desaturation and decarboxylation. The FeIV-oxo-triggered desaturation includes two consecutive H-abstractions. In the second stage reaction, the decarboxylation of the substrate radical generated by H-abstraction is calculated to be quite easy. The electron transfer from the substrate to the iron center is the key factor for lowering the barrier of decarboxylation. The central iron ion is responsible for H-abstraction and also acts as an electron relay station for decarboxylation. This electron transfer is coupled with a proton transfer, in which R310 and the associated H-bonding network play a critical role. The first C-N desaturation is the rate-limiting step of the whole catalysis with an overall energy barrier of 17.6 or 16.9 kcal/mol in two competitive pathways	Streptomyces coeruleorubidus

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Release 2023.1 (January 2023)