{"id":644,"date":"2014-03-26T18:22:52","date_gmt":"2014-03-26T18:22:52","guid":{"rendered":"https:\/\/blogs.bmj.com\/jmg\/?p=644"},"modified":"2026-02-25T19:48:46","modified_gmt":"2026-02-25T19:48:46","slug":"mutation-in-kank2-encoding-a-sequestering-protein-for-steroid-receptor-coactivators-causes-keratoderma-and-woolly-hair","status":"publish","type":"post","link":"https:\/\/blogs.bmj.com\/jmg\/2014\/03\/26\/mutation-in-kank2-encoding-a-sequestering-protein-for-steroid-receptor-coactivators-causes-keratoderma-and-woolly-hair\/","title":{"rendered":"Mutation in KANK2, encoding a sequestering protein for steroid receptor coactivators, causes keratoderma and woolly hair (Contributed by Dr. Yuval Ramot)"},"content":{"rendered":"<p>The combination of keratoderma (thickened palms and soles) with woolly hair should always alert the clinician to the possibility of Naxos or Carvajal syndromes. These two autosomal recessive conditions are caused by mutations in desmosomal proteins, which are critical for cellular adhesion in the skin. Since desmosomes are abundant in the cardiac muscle, these syndromes are also associated with severe heart disease that leads to sudden death at an early age. The authors studied two families with keratoderma and woolly hair without associated heart disease, and identified a mutation in <i>KANK2<\/i>, which encodes a non-desmosomal protein that controls the transcription of steroid receptor target genes. Mutation in this gene leads to excess activation of the vitamin D receptor, emphasizing its importance in normal hair and skin phenotypes. (<a href=\"http:\/\/jmg.bmj.com\/content\/early\/2014\/03\/26\/jmedgenet-2014-102346\">http:\/\/jmg.bmj.com\/content\/early\/2014\/03\/26\/jmedgenet-2014-102346<\/a> )<!--TrendMD v2.4.8--><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The combination of keratoderma (thickened palms and soles) with woolly hair should always alert the clinician to the possibility of Naxos or Carvajal syndromes. These two autosomal recessive conditions are caused by mutations in desmosomal proteins, which are critical for cellular adhesion in the skin. Since desmosomes are abundant in the cardiac muscle, these syndromes [&#8230;]<\/p>\n<p><a class=\"btn btn-secondary understrap-read-more-link\" href=\"https:\/\/blogs.bmj.com\/jmg\/2014\/03\/26\/mutation-in-kank2-encoding-a-sequestering-protein-for-steroid-receptor-coactivators-causes-keratoderma-and-woolly-hair\/\">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-644","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mutation in KANK2, encoding a sequestering protein for steroid receptor coactivators, causes keratoderma and woolly hair (Contributed by Dr. Yuval Ramot) - 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\/2014\/03\/26\/mutation-in-kank2-encoding-a-sequestering-protein-for-steroid-receptor-coactivators-causes-keratoderma-and-woolly-hair\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mutation in KANK2, encoding a sequestering protein for steroid receptor coactivators, causes keratoderma and woolly hair (Contributed by Dr. Yuval Ramot) - JMG Contact blog\" \/>\n<meta property=\"og:description\" content=\"The combination of keratoderma (thickened palms and soles) with woolly hair should always alert the clinician to the possibility of Naxos or Carvajal syndromes. These two autosomal recessive conditions are caused by mutations in desmosomal proteins, which are critical for cellular adhesion in the skin. Since desmosomes are abundant in the cardiac muscle, these syndromes [...]Read More...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blogs.bmj.com\/jmg\/2014\/03\/26\/mutation-in-kank2-encoding-a-sequestering-protein-for-steroid-receptor-coactivators-causes-keratoderma-and-woolly-hair\/\" \/>\n<meta property=\"og:site_name\" content=\"JMG Contact blog\" \/>\n<meta property=\"article:published_time\" content=\"2014-03-26T18:22:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-25T19:48:46+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\\\/2014\\\/03\\\/26\\\/mutation-in-kank2-encoding-a-sequestering-protein-for-steroid-receptor-coactivators-causes-keratoderma-and-woolly-hair\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/2014\\\/03\\\/26\\\/mutation-in-kank2-encoding-a-sequestering-protein-for-steroid-receptor-coactivators-causes-keratoderma-and-woolly-hair\\\/\"},\"author\":{\"name\":\"hqqu\",\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/#\\\/schema\\\/person\\\/be0250f8d5b52412c3e7c222dabd591b\"},\"headline\":\"Mutation in KANK2, encoding a sequestering protein for steroid receptor coactivators, causes keratoderma and woolly hair (Contributed by Dr. Yuval Ramot)\",\"datePublished\":\"2014-03-26T18:22:52+00:00\",\"dateModified\":\"2026-02-25T19:48:46+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/2014\\\/03\\\/26\\\/mutation-in-kank2-encoding-a-sequestering-protein-for-steroid-receptor-coactivators-causes-keratoderma-and-woolly-hair\\\/\"},\"wordCount\":156,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/#organization\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/2014\\\/03\\\/26\\\/mutation-in-kank2-encoding-a-sequestering-protein-for-steroid-receptor-coactivators-causes-keratoderma-and-woolly-hair\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/2014\\\/03\\\/26\\\/mutation-in-kank2-encoding-a-sequestering-protein-for-steroid-receptor-coactivators-causes-keratoderma-and-woolly-hair\\\/\",\"url\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/2014\\\/03\\\/26\\\/mutation-in-kank2-encoding-a-sequestering-protein-for-steroid-receptor-coactivators-causes-keratoderma-and-woolly-hair\\\/\",\"name\":\"Mutation in KANK2, encoding a sequestering protein for steroid receptor coactivators, causes keratoderma and woolly hair (Contributed by Dr. Yuval Ramot) - 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