Cytochrome P450, family 197, also known as CYP197, is a cytochrome P450 monooxygenase family.[1] The first gene identified in this family is the CYP197A1 from Bacillus halodurans.[2] CYP197 is one of the only three P450 families shared in bacteria and archaea, the other two are CYP147 and CYP109.[1] Genes in this family are co-present on archaeal plasmids and chromosomes, implying the plasmid-mediated horizontal gene transfer of these genes from bacteria to archaea.[1]
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