Additional file 3.

Sequence alignment of HutZ with its homologous proteins. Vc, Vibrio cholerae HutZ; As, Aliivibrio salmonicida HuvZ; Pss, Photobacterium sp. SKA34 HugZ; Va, Vibrio alginolyticus protein V12G01-06051; Ah, Aeromonas hydrophila HutZ; Hi, H. influenza protein HI0854; Cj, C. jejuni ChuZ; Hp, H. pylori HugZ. Secondary structures of Vc-HutZ are schematically represented above the sequences. Residues from HutZ that coordinate the iron atom in heme are labeled with asterisks at the top; residues stabilizing the heme molecule in HutZ are labeled with squares at the top; residues from HugZ coordinating the iron atom in heme are labeled with rhombus at the bottom; residues from HugZ involved in stabilization of heme molecule are labeled with triangles at the bottom. Strictly conserved residues are marked with red background. Similar residues are shown in red color.

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Liu et al. BMC Structural Biology 2012 12:23   doi:10.1186/1472-6807-12-23