CRYSTAL STRUCTURE OF HETERODIMERIC R132H MUTANT OF HUMAN CYTOSOLIC NADP(+)-DEPENDENT ISOCITRATE DEHYDROGENASE IN COMPLEX WITH NADP AND ISOCITRATE 3MAS OXIDOREDUCTASE, ISOCITRATE DEHYDROGENASE, NICOTINAMIDE ADENINE DINUCLEOTIDE PHOSPHATE, ROSSMANN FOLD