6.2.1.2 7 - reaction with butyrate as substrate 650950 6.2.1.2 7.1 - - 658 6.2.1.2 7.5 - assay at 727750 6.2.1.2 8 - - 669 6.2.1.2 8 - broad pH-optimum around 677 6.2.1.2 8.4 - - 670 6.2.1.2 8.5 - - 690837 6.2.1.2 8.6 - reaction with octanoate as substrate 650950 6.2.1.2 9 - - 668