The IDH1 gene is located on chromosome 2q33.3. - Chromosome 2 is one of the 23 pairs of human chromosomes and is designated as “2” based on its size and appearance under a microscope. The specific location of the IDH1 gene on chromosome 2 is referred to as 2q33.3, indicating the long arm (q) of chromosome 2, region 33.3.

see IDH2 gene