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Detection of genes of flavin-dependent halogenases in metagenomic DNA of A. cavernicola (Ac) and I. basta (Ib) via degenerated primer PCR; left: primer pair TyrhalA_for/rev; right: primer pair HaloDetect_for/rev; +: fragment of clohal (flavin-dependent halogenase from the clorobiocin biosynthetic gene cluster) as a positive control; −: H2O as a negative control.
