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Comparison of translated sequences for K. oxytoca XynB (KOX) and homologs from K. pneumoniae (KPN), L. lactis (LAC), B. longum (BLON; Blon1245), and E. coli K12 YagH. Residues which are identical in three of the five sequences are shaded in black. Solid circles above residues D15, F85, D128, and E188 in KOX correspond to residues D18, F114, D158, and E221 from C. japonicus ArbA that are involved in catalytic activity and substrate binding.
