PR:000000844 voltage-gated potassium channel subunit KCNQ1 sequence variant A344V (human) hKCNQ1/var:A344V|UniProtKB:P51787-1, Ala-344, CHEBI:30015|voltage-gated potassium channel subunit KCNQ1 sequence variant 34 (human) associated_with_disease_progression DOID:2843 long QT syndrome PMID:10704188 EXP NCBITaxon:9606 UniProtKB_VAR:VAR_001541 20080601 PRO:CNA