Enzymatic Degradation of Chlorodiamino-s-Triazine
AUTOR(ES)
Seffernick, Jennifer L.
FONTE
American Society for Microbiology
RESUMO
2-Chloro-4,6-diamino-s-triazine (CAAT) is a metabolite of atrazine biodegradation in soils. Atrazine chlorohydrolase (AtzA) catalyzes the dechlorination of atrazine but is unreactive with CAAT. In this study, melamine deaminase (TriA), which is 98% identical to AtzA, catalyzed deamination of CAAT to produce 2-chloro-4-amino-6-hydroxy-s-triazine (CAOT). CAOT underwent dechlorination via hydroxyatrazine ethylaminohydrolase (AtzB) to yield ammelide. This represents a newly discovered dechlorination reaction for AtzB. Ammelide was subsequently hydrolyzed by N-isopropylammelide isopropylaminohydrolase to produce cyanuric acid, a compound metabolized by a variety of soil bacteria.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=124118Documentos Relacionados
- Utilization of Methylthio-s-Triazine for Growth of Soil Fungi 1
- Plasmid-determined enzymatic degradation of nylon oligomers.
- Promotion of Sorghum Callus Growth by the s-Triazine Herbicides 1
- Zero-order interfacial enzymatic degradation of phospholipid tubules.
- Arthrobacter aurescens TC1 Metabolizes Diverse s-Triazine Ring Compounds