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Expression of aegA and ygfT examined under microaerobic and anaerobic conditions. (A and B) The effect of various respiratory electron acceptors on the expression of aegA (A) and ygfT (B) genes was examined. (C and D) The effect of various purine degradation intermediates on the expression of aegA (C) and ygfT (D) genes was examined under anaerobic conditions. β-Galactosidase activity is presented as units per milligram of protein.
