{"id":432,"date":"2012-12-15T06:06:02","date_gmt":"2012-12-15T06:06:02","guid":{"rendered":"https:\/\/blogs.bmj.com\/jmg\/?p=432"},"modified":"2026-02-25T20:23:31","modified_gmt":"2026-02-25T20:23:31","slug":"mutation-of-herc2-causes-developmental-delay-with-angelman-like-features","status":"publish","type":"post","link":"https:\/\/blogs.bmj.com\/jmg\/2012\/12\/15\/mutation-of-herc2-causes-developmental-delay-with-angelman-like-features\/","title":{"rendered":"Mutation of HERC2 causes developmental delay with Angelman-like features (Contributed by Dr Andrew H Crosby)"},"content":{"rendered":"<p>Angelman syndrome is a rare genetic condition characterised by severe learning difficulties and neurological problems. The majority of cases result from a deletion of part of chromosome 15 which usually affects a gene called E6AP, thought to be the primary molecule responsible Angelman syndrome. <i>HERC2<\/i> is another gene that is commonly deleted in Angelman syndrome patients. However, although HERC2 was recently shown to be a biological partner of E6AP, it has never been associated with the features of Angelman syndrome. We studied an unusual developmental delay syndrome found amongst the Old Order Amish which although distinct, displays a number of clinical similarities with Angelman syndrome. Our molecular studies showed that a mutation in the <i>HERC2 <\/i>gene is responsible for this condition. Taken together our studies suggest a previously unrecognised role of the HERC2 gene in Angelman syndrome. (<a href=\"http:\/\/jmg.bmj.com\/content\/early\/2012\/12\/13\/jmedgenet-2012-101367\">http:\/\/jmg.bmj.com\/content\/early\/2012\/12\/13\/jmedgenet-2012-101367<\/a> )<!--TrendMD v2.4.8--><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Angelman syndrome is a rare genetic condition characterised by severe learning difficulties and neurological problems. The majority of cases result from a deletion of part of chromosome 15 which usually affects a gene called E6AP, thought to be the primary molecule responsible Angelman syndrome. HERC2 is another gene that is commonly deleted in Angelman syndrome [&#8230;]<\/p>\n<p><a class=\"btn btn-secondary understrap-read-more-link\" href=\"https:\/\/blogs.bmj.com\/jmg\/2012\/12\/15\/mutation-of-herc2-causes-developmental-delay-with-angelman-like-features\/\">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-432","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 of HERC2 causes developmental delay with Angelman-like features (Contributed by Dr Andrew H Crosby) - 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\/2012\/12\/15\/mutation-of-herc2-causes-developmental-delay-with-angelman-like-features\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mutation of HERC2 causes developmental delay with Angelman-like features (Contributed by Dr Andrew H Crosby) - JMG Contact blog\" \/>\n<meta property=\"og:description\" content=\"Angelman syndrome is a rare genetic condition characterised by severe learning difficulties and neurological problems. The majority of cases result from a deletion of part of chromosome 15 which usually affects a gene called E6AP, thought to be the primary molecule responsible Angelman syndrome. HERC2 is another gene that is commonly deleted in Angelman syndrome [...]Read More...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blogs.bmj.com\/jmg\/2012\/12\/15\/mutation-of-herc2-causes-developmental-delay-with-angelman-like-features\/\" \/>\n<meta property=\"og:site_name\" content=\"JMG Contact blog\" \/>\n<meta property=\"article:published_time\" content=\"2012-12-15T06:06:02+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-25T20:23:31+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\\\/2012\\\/12\\\/15\\\/mutation-of-herc2-causes-developmental-delay-with-angelman-like-features\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/2012\\\/12\\\/15\\\/mutation-of-herc2-causes-developmental-delay-with-angelman-like-features\\\/\"},\"author\":{\"name\":\"hqqu\",\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/#\\\/schema\\\/person\\\/be0250f8d5b52412c3e7c222dabd591b\"},\"headline\":\"Mutation of HERC2 causes developmental delay with Angelman-like features (Contributed by Dr Andrew H Crosby)\",\"datePublished\":\"2012-12-15T06:06:02+00:00\",\"dateModified\":\"2026-02-25T20:23:31+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/2012\\\/12\\\/15\\\/mutation-of-herc2-causes-developmental-delay-with-angelman-like-features\\\/\"},\"wordCount\":161,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/#organization\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/2012\\\/12\\\/15\\\/mutation-of-herc2-causes-developmental-delay-with-angelman-like-features\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/2012\\\/12\\\/15\\\/mutation-of-herc2-causes-developmental-delay-with-angelman-like-features\\\/\",\"url\":\"https:\\\/\\\/blogs.bmj.com\\\/jmg\\\/2012\\\/12\\\/15\\\/mutation-of-herc2-causes-developmental-delay-with-angelman-like-features\\\/\",\"name\":\"Mutation of HERC2 causes developmental delay with Angelman-like features (Contributed by Dr Andrew H Crosby) - 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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":"Mutation of HERC2 causes developmental delay with Angelman-like features (Contributed by Dr Andrew H Crosby) - 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\/2012\/12\/15\/mutation-of-herc2-causes-developmental-delay-with-angelman-like-features\/","og_locale":"en_US","og_type":"article","og_title":"Mutation of HERC2 causes developmental delay with Angelman-like features (Contributed by Dr Andrew H Crosby) - JMG Contact blog","og_description":"Angelman syndrome is a rare genetic condition characterised by severe learning difficulties and neurological problems. 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