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 lactic acidosis, hereditary -HML myopathy with deficiency of succinate dehydrogenase and aconitase - myopathy with exercise intolerance, swedish type -
IGHMBP2 immunoglobulin mu binding protein 2	11q13.2-q13.4	Spinal muscular atrophy with respiratory distress -SMARD1
IKBKAP inhibitor of kappa light polypeptide gene enhancer in B-cells, kinase complex-associated protein	9q31-q33	Dysautonomia, familial -DYS Neuropathy, hereditary sensory and autonomic, type III -HSAN3 dysautonomia familial , riley-day syndrome -FD
ILK integrin-linked kinase	11p15.5-p15.4	dilated cardiomyopathy due to integrin-linked kinase defect -ILK
ITGA7 integrin alpha 7 precursor	12q13	Myopathy, congenital -ITGA7
ITPR1 Inositol 1,4,5-triphosphate receptor type 1	3p26.1-p25.3	Spinocerebellar ataxia 15 -SCA15