Gene symbol and protein	Gene Location	All allelic disease phenotypes - locus/disease symbols
ICSU iron-sulfur cluster scaffold homolog (E. coli)	12q24.1	* myopathy with deficiency of succinate dehydrogenase and aconitase - (5.23) * myopathy with lactic acidosis, hereditary - HML (5.23) * myopathy with exercise intolerance, swedish type - (5.23)
IFRD1 Interferon-related developmental regulator 1	7q22-q32	* Spinocerebellar ataxia 18 - SCA18 (13.16)
IGHMBP2 immunoglobulin mu binding protein 2	11q13.2-q13.4	* Spinal muscular atrophy with respiratory distress - SMARD1 (12.5)
IKBKAP inhibitor of kappa light polypeptide gene enhancer in B-cells, kinase complex-associated protein	9q31-q33	* Neuropathy, hereditary sensory and autonomic, type III - HSAN3 (14.59, 16.3) * Familial dysautonomia (Riley-Day syndrome) - (14.59, 16.3)
ILK integrin-linked kinase	11p15.5-p15.4	* Dilated cardiomyopathy due to integrin-linked kinase defect - ILK (10.57)
ITGA7 integrin alpha 7 precursor	12q13	* Congenital muscular dystrophy with integrin defect - (2.24)
ITPR1 Inositol 1,4,5-triphosphate receptor type 1	3p26.1-p25.3	* Spinocerebellar ataxia 15 - SCA15 (13.14)