has material basis in germline mutation in KCNE1 Jervell and Lange-Nielsen syndrome Jervell and Lange-Nielsen syndrome 2 https://rarediseases.info.nih.gov/diseases/10364/jervell-and-lange-nielsen-syndrome-2 https://www.malacards.org/card/jervell_and_lange_nielsen_syndrome_2 Jervell and Lange-Nielsen syndrome 2 MESH:C567343 Any Jervell and Lange-Nielsen syndrome in which the cause of the disease is a mutation in the KCNE1 gene. GARD:0010364 JLNS2 Jervell and Lange-Nielsen syndrome type 2 MONDO:0012871 MEDGEN:394108 KCNE1 Jervell and Lange-Nielsen syndrome Jervell and Lange-Nielsen syndrome caused by mutation in KCNE1 UMLS:C2676723 OMIM:612347 long QT syndrome 5