PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18441444-2 2008 The syndrome is caused by homozygous or compound heterozygous mutations in genes KCNQ1 and KCNE1, which are responsible for encoding the delayed rectifier repolarizing current, I(Ks). Potassium 179-181 potassium voltage-gated channel subfamily E regulatory subunit 1 Homo sapiens 91-96