 It is closely related to the enzyme chlorate reductase, but is distinguished by its ability to reduce both perchlorate and chlorate, whereas chlorate reductase only acts on chlorate.Perchlorate reductase and chlorate reductase are closely related but form genetically distinct clades.As of November 2014, perchlorate reductase has not been assigned a specific Enzyme Commission number, but along with chlorate reductase (), it would presumably be a member of the EC 1.97.1.- oxidoreductase subclass.