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Comparison of the amino acid sequence derived from the 600 bp halogenase gene fragment obtained from bacteria associated with I. basta (Ib) to the halogenase BhaA from balhimycin biosynthesis [31] and of the 300 bp halogenase gene fragment from bacteria associated with A. cavernicola (Ac) with a halogenase gene fragment (Acclone 1) isolated by Bayer et al. from A. cavernicola [23]. Non-identical amino acids are shaded in grey.
