Fig 4.

Multiple-sequence alignment of MCOs, showing the conserved copper center residues, T1 (∗) and T2/T3 (⧫). The alignment includes sequences from Leptospirillum group IV UBA BS (box outlined by a broken line) (lines 1), Nitrosomonas europaea (lines 2), Nitrosococcus halophilus (lines 3), Herminiimonas arsenicoxydans (lines 4), Shewanella woodyi ATCC 51908 (lines 5), Deinococcus maricopensis DMS 21211 (lines 6) and Flavobacterium frigoris PS1 (lines 7). Gaps introduced to maximize alignment are indicated by dashes.