NADP(+)-dependent isocitrate dehydrogenase (ICD) is an important enzyme of the intermediary metabolism, as it controls the carbon flux within the citric acid cycle and supplies the cell with 2-oxoglutarate EC:1.1.1.42 and NADPH for biosynthetic purposes [2].

1: Genes encoding two isocitrate dehydrogenase isozymes of a psychrophilic bacterium, Vibrio sp. strain ABE-1. Ishii A, Suzuki M, Sahara T, Takada Y, Sasaki S, Fukunaga N; J Bacteriol 1993;175:6873-6880. PMID:8226630

2: Cloning, sequence analysis, expression, and inactivation of the Corynebacterium glutamicum icd gene encoding isocitrate dehydrogenase and biochemical characterization of the enzyme. Eikmanns BJ, Rittmann D, Sahm H; J Bacteriol 1995;177:774-782. PMID:7836312