5.3.1.15 6.5 - - 5.3.1.15 6.5 - wild-type and recombinant enzymes at 1 mM Mn2+ 5.3.1.15 7 - - 5.3.1.15 7.5 - - 5.3.1.15 7.5 - enzyme immobilized on Duolite A568 beads 5.3.1.15 7.5 8 -