{"id":846,"date":"2016-01-06T19:27:18","date_gmt":"2016-01-06T19:27:18","guid":{"rendered":"https:\/\/blogs.bmj.com\/jmg\/?p=846"},"modified":"2026-02-25T00:20:13","modified_gmt":"2026-02-25T00:20:13","slug":"kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects","status":"publish","type":"post","link":"https:\/\/blogs.bmj.com\/jmg\/2016\/01\/06\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\/","title":{"rendered":"KCNT1 mutations in seizure disorders: the phenotypic spectrum and functional effects (Contributed by Dr. Sarah Heron)"},"content":{"rendered":"<p>Mutations in the potassium channel subunit gene <em>KCNT1<\/em> have been identified during the past three years in patients with neurological disorders including nocturnal frontal lobe epilepsy, epileptic encephalopathies and white matter diseases. <em>KCNT1<\/em> mutations have also been linked to cardiac arrhythmias. In this review we describe the current knowledge of the <em>KCNT1<\/em> gene and its protein product. We discuss the mutational spectrum and range of disorders associated with <em>KCNT1<\/em>, KCNT1 protein function, the functional effect of <em>KCNT1<\/em> mutations, and how this may be related to disease causation. We also discuss preliminary clinical trials of the drug quinidine as a treatment for patients with <em>KCNT1<\/em>-related disorders. Quinidine alters KCNT1 channel function and its potential use in the treatment of these disorders is an example of personalised medicine based on genetic information. (<a href=\"http:\/\/jmg.bmj.com\/content\/early\/2016\/01\/06\/jmedgenet-2015-103508\">http:\/\/jmg.bmj.com\/content\/early\/2016\/01\/06\/jmedgenet-2015-103508<\/a> )<!--TrendMD v2.4.8--><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mutations in the potassium channel subunit gene KCNT1 have been identified during the past three years in patients with neurological disorders including nocturnal frontal lobe epilepsy, epileptic encephalopathies and white matter diseases. KCNT1 mutations have also been linked to cardiac arrhythmias. In this review we describe the current knowledge of the KCNT1 gene and its [&#8230;]<\/p>\n<p><a class=\"btn btn-secondary understrap-read-more-link\" href=\"https:\/\/blogs.bmj.com\/jmg\/2016\/01\/06\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\/\">Read More&#8230;<\/a><\/p>\n","protected":false},"author":123,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-846","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>KCNT1 mutations in seizure disorders: the phenotypic spectrum and functional effects (Contributed by Dr. Sarah Heron) - JMG Contact blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.bmj.com\/jmg\/2016\/01\/06\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"KCNT1 mutations in seizure disorders: the phenotypic spectrum and functional effects (Contributed by Dr. Sarah Heron) - JMG Contact blog\" \/>\n<meta property=\"og:description\" content=\"Mutations in the potassium channel subunit gene KCNT1 have been identified during the past three years in patients with neurological disorders including nocturnal frontal lobe epilepsy, epileptic encephalopathies and white matter diseases. KCNT1 mutations have also been linked to cardiac arrhythmias. In this review we describe the current knowledge of the KCNT1 gene and its [...]Read More...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blogs.bmj.com\/jmg\/2016\/01\/06\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\/\" \/>\n<meta property=\"og:site_name\" content=\"JMG Contact blog\" \/>\n<meta property=\"article:published_time\" content=\"2016-01-06T19:27:18+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-25T00:20:13+00:00\" \/>\n<meta name=\"author\" content=\"hqqu\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@HuiQiQu\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"hqqu\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/2016\\\/01\\\/06\\\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/2016\\\/01\\\/06\\\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\\\/\"},\"author\":{\"name\":\"hqqu\",\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/#\\\/schema\\\/person\\\/be0250f8d5b52412c3e7c222dabd591b\"},\"headline\":\"KCNT1 mutations in seizure disorders: the phenotypic spectrum and functional effects (Contributed by Dr. Sarah Heron)\",\"datePublished\":\"2016-01-06T19:27:18+00:00\",\"dateModified\":\"2026-02-25T00:20:13+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/2016\\\/01\\\/06\\\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\\\/\"},\"wordCount\":155,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/#organization\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/2016\\\/01\\\/06\\\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/2016\\\/01\\\/06\\\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\\\/\",\"url\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/2016\\\/01\\\/06\\\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\\\/\",\"name\":\"KCNT1 mutations in seizure disorders: the phenotypic spectrum and functional effects (Contributed by Dr. Sarah Heron) - JMG Contact blog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/#website\"},\"datePublished\":\"2016-01-06T19:27:18+00:00\",\"dateModified\":\"2026-02-25T00:20:13+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/2016\\\/01\\\/06\\\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/2016\\\/01\\\/06\\\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/2016\\\/01\\\/06\\\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"KCNT1 mutations in seizure disorders: the phenotypic spectrum and functional effects (Contributed by Dr. Sarah Heron)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/#website\",\"url\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/\",\"name\":\"JMG Contact blog\",\"description\":\"JMG Contact blog\",\"publisher\":{\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/#organization\",\"name\":\"JMG Contact blog\",\"url\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/files\\\/2017\\\/10\\\/blog-logo-jmg.png\",\"contentUrl\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/files\\\/2017\\\/10\\\/blog-logo-jmg.png\",\"width\":300,\"height\":34,\"caption\":\"JMG Contact blog\"},\"image\":{\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/#\\\/schema\\\/person\\\/be0250f8d5b52412c3e7c222dabd591b\",\"name\":\"hqqu\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/920bc4e81500cde88def4bfd7775029cb154e422c5460b9cf80d5c47137d6f35?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/920bc4e81500cde88def4bfd7775029cb154e422c5460b9cf80d5c47137d6f35?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/920bc4e81500cde88def4bfd7775029cb154e422c5460b9cf80d5c47137d6f35?s=96&d=mm&r=g\",\"caption\":\"hqqu\"},\"description\":\"Huiqi Qu has a background as a physician trained in internal medicine and a PhD in Experimental Medicine (Endocrinology). His research applies human genetics and multi-omics to complex and pediatric diseases, including GWAS, polygenic risk scores (PRS), single-cell transcriptomics, and integrative genomics to support precision medicine and clinical translation.\",\"sameAs\":[\"https:\\\/\\\/x.com\\\/HuiQiQu\"],\"url\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/author\\\/hqiqu\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"KCNT1 mutations in seizure disorders: the phenotypic spectrum and functional effects (Contributed by Dr. Sarah Heron) - JMG Contact blog","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/blogs.bmj.com\/jmg\/2016\/01\/06\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\/","og_locale":"en_US","og_type":"article","og_title":"KCNT1 mutations in seizure disorders: the phenotypic spectrum and functional effects (Contributed by Dr. Sarah Heron) - JMG Contact blog","og_description":"Mutations in the potassium channel subunit gene KCNT1 have been identified during the past three years in patients with neurological disorders including nocturnal frontal lobe epilepsy, epileptic encephalopathies and white matter diseases. KCNT1 mutations have also been linked to cardiac arrhythmias. In this review we describe the current knowledge of the KCNT1 gene and its [...]Read More...","og_url":"https:\/\/blogs.bmj.com\/jmg\/2016\/01\/06\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\/","og_site_name":"JMG Contact blog","article_published_time":"2016-01-06T19:27:18+00:00","article_modified_time":"2026-02-25T00:20:13+00:00","author":"hqqu","twitter_card":"summary_large_image","twitter_creator":"@HuiQiQu","twitter_misc":{"Written by":"hqqu","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/blogs.bmj.com\/jmg\/2016\/01\/06\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\/#article","isPartOf":{"@id":"https:\/\/blogs.bmj.com\/jmg\/2016\/01\/06\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\/"},"author":{"name":"hqqu","@id":"https:\/\/blogs.bmj.com\/jmg\/#\/schema\/person\/be0250f8d5b52412c3e7c222dabd591b"},"headline":"KCNT1 mutations in seizure disorders: the phenotypic spectrum and functional effects (Contributed by Dr. Sarah Heron)","datePublished":"2016-01-06T19:27:18+00:00","dateModified":"2026-02-25T00:20:13+00:00","mainEntityOfPage":{"@id":"https:\/\/blogs.bmj.com\/jmg\/2016\/01\/06\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\/"},"wordCount":155,"commentCount":0,"publisher":{"@id":"https:\/\/blogs.bmj.com\/jmg\/#organization"},"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/blogs.bmj.com\/jmg\/2016\/01\/06\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/blogs.bmj.com\/jmg\/2016\/01\/06\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\/","url":"https:\/\/blogs.bmj.com\/jmg\/2016\/01\/06\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\/","name":"KCNT1 mutations in seizure disorders: the phenotypic spectrum and functional effects (Contributed by Dr. Sarah Heron) - JMG Contact blog","isPartOf":{"@id":"https:\/\/blogs.bmj.com\/jmg\/#website"},"datePublished":"2016-01-06T19:27:18+00:00","dateModified":"2026-02-25T00:20:13+00:00","breadcrumb":{"@id":"https:\/\/blogs.bmj.com\/jmg\/2016\/01\/06\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/blogs.bmj.com\/jmg\/2016\/01\/06\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/blogs.bmj.com\/jmg\/2016\/01\/06\/kcnt1-mutations-in-seizure-disorders-the-phenotypic-spectrum-and-functional-effects\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/blogs.bmj.com\/jmg\/"},{"@type":"ListItem","position":2,"name":"KCNT1 mutations in seizure disorders: the phenotypic spectrum and functional effects (Contributed by Dr. Sarah Heron)"}]},{"@type":"WebSite","@id":"https:\/\/blogs.bmj.com\/jmg\/#website","url":"https:\/\/blogs.bmj.com\/jmg\/","name":"JMG Contact blog","description":"JMG Contact blog","publisher":{"@id":"https:\/\/blogs.bmj.com\/jmg\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/blogs.bmj.com\/jmg\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/blogs.bmj.com\/jmg\/#organization","name":"JMG Contact blog","url":"https:\/\/blogs.bmj.com\/jmg\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/blogs.bmj.com\/jmg\/#\/schema\/logo\/image\/","url":"https:\/\/blogs.bmj.com\/jmg\/files\/2017\/10\/blog-logo-jmg.png","contentUrl":"https:\/\/blogs.bmj.com\/jmg\/files\/2017\/10\/blog-logo-jmg.png","width":300,"height":34,"caption":"JMG Contact blog"},"image":{"@id":"https:\/\/blogs.bmj.com\/jmg\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/blogs.bmj.com\/jmg\/#\/schema\/person\/be0250f8d5b52412c3e7c222dabd591b","name":"hqqu","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/920bc4e81500cde88def4bfd7775029cb154e422c5460b9cf80d5c47137d6f35?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/920bc4e81500cde88def4bfd7775029cb154e422c5460b9cf80d5c47137d6f35?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/920bc4e81500cde88def4bfd7775029cb154e422c5460b9cf80d5c47137d6f35?s=96&d=mm&r=g","caption":"hqqu"},"description":"Huiqi Qu has a background as a physician trained in internal medicine and a PhD in Experimental Medicine (Endocrinology). His research applies human genetics and multi-omics to complex and pediatric diseases, including GWAS, polygenic risk scores (PRS), single-cell transcriptomics, and integrative genomics to support precision medicine and clinical translation.","sameAs":["https:\/\/x.com\/HuiQiQu"],"url":"https:\/\/blogs.bmj.com\/jmg\/author\/hqiqu\/"}]}},"_links":{"self":[{"href":"https:\/\/blogs.bmj.com\/jmg\/wp-json\/wp\/v2\/posts\/846","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.bmj.com\/jmg\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.bmj.com\/jmg\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.bmj.com\/jmg\/wp-json\/wp\/v2\/users\/123"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.bmj.com\/jmg\/wp-json\/wp\/v2\/comments?post=846"}],"version-history":[{"count":0,"href":"https:\/\/blogs.bmj.com\/jmg\/wp-json\/wp\/v2\/posts\/846\/revisions"}],"wp:attachment":[{"href":"https:\/\/blogs.bmj.com\/jmg\/wp-json\/wp\/v2\/media?parent=846"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.bmj.com\/jmg\/wp-json\/wp\/v2\/categories?post=846"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.bmj.com\/jmg\/wp-json\/wp\/v2\/tags?post=846"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}