Crystal structure of a putative phosphoenolpyruvate phosphonomutase (ncgl1015, cgl1060) from corynebacterium glutamicum atcc 13032 at 1.80 A resolutionCrystal structure of a putative phosphoenolpyruvate phosphonomutase (ncgl1015, cgl1060) from corynebacterium glutamicum atcc 13032 at 1.80 A resolution