ArticleChembiochem : a European journal of chemical biology2024
Ether Bond Cleavage of a Phenylcoumaran β-5 Lignin Model Compound and Polymeric Lignin Catalysed by a LigE-type Etherase from Agrobacterium sp.
Article in Chembiochem : a European journal of chemical biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 4 citations in OpenAlex.
- The glutathione S-transferase gene LaGSTU6 promotes somatic embryogenesis in a recalcitrant lily genotype by regulating scales redox homeostasis.Molecular horticulture · 2026Article
- Biochemical parallels between catabolic pathways for lignin-associated aromatic dimers.Applied and environmental microbiology · 2026Review
- Catabolism of β-5 linked aromatics bymBio · 2024Article
- Ether Bond Cleavage of a Phenylcoumaran β-5 Lignin Model Compound and Polymeric Lignin Catalysed by a LigE-type Etherase from Agrobacterium sp.Chembiochem : a European journal of chemical biology · 2024Article
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Authors and funding
10 authors at 2 institutions in 2 countries.
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Abstract
A LigE-type beta-etherase enzyme from lignin-degrading Agrobacterium sp. has been identified, which assists degradation of polymeric lignins. Testing against lignin dimer model compounds revealed that it does not catalyse the previously reported reaction of Sphingobium SYK-6 LigE, but instead shows activity for a β-5 phenylcoumaran lignin dimer. The reaction products did not contain glutathione, indicating a catalytic role for reduced glutathione in this enzyme. Three reaction products were identified: the major product was a cis-stilbene arising from C-C fragmentation involving loss of formaldehyde; two minor products were an alkene arising from elimination of glutathione, and an oxidised ketone, proposed to arise from reaction of an intermediate with molecular oxygen. Testing of the recombinant enzyme against a soda lignin revealed the formation of new signals by two-dimensional NMR analysis, whose chemical shifts are consistent with the formation of a stilbene unit in polymeric lignin.
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