Dendrograms showing the relationship of OphA1, OphA2, and OphB to similar proteins. Reference strains include B. cepacia DBO1 (this work), P. putida NMH102-2 (66), Flavobacterium sp. strain ATCC 39823 (50), P. pseudoalcaligenes POB310 (22), Pseudomonas sp. strain ATCC 19151 (11), C. testosteroni T2 (42), Alcaligenes sp. strain BR60 (58), P. pseudoalcaligenes KF707 (31), P. putida F1 (88), Pseudomonas sp. strain D12 (25), and A. calcoaceticus BD413 (61).