1,2-dichloroethane reductive dehalogenase

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Contaminant:

Remediation Protocol:

Target Type:

dcaA

Chlorinated solvents

Reductive dechlorination

Contaminant degrading enzyme

qPCR Target Information

1,2-dichloroethane reductive dehalogenase is the key enzyme that catalyzes the organohalide‑respiring step of converting 1,2‑dichloroethane (1,2‑DCA) to ethene under anaerobic conditions.

As this enzyme performs the key detoxification step from chlorinated ethane to a non‑chlorinated end product, dcaA functions as a substrate‑specific functional biomarker for active reductive dechlorination of 1,2‑DCA in groundwater systems.

The gene is found in strains of Desulfitobacterium and/or Dehalobacter enriched from 1,2‑DCA‑contaminated aquifers. Micronovo's AusDCA contains Desulfitobacterium with this gene.

Note, 1,2-dichloroethane is also known as 1,2-DCA, DCA and ethylene dichloride or EDC in Australia.