PR:000000850 voltage-gated potassium channel subunit KCNQ1 sequence variant G306R (human) hKCNQ1/var:G306R|UniProtKB:P51787-1, Gly-306, CHEBI:29952|voltage-gated potassium channel subunit KCNQ1 sequence variant 4 (human) associated_with_disease_progression DOID:2843 long QT syndrome PMID:10704188 EXP NCBITaxon:9606 UniProtKB_VAR:VAR_001528 20080601 PRO:CNA