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Mutations in <jats:italic>FOXP2<\/jats:italic>, located at 7q31, are well known to cause developmental speech and language disorders, particularly developmental verbal dyspraxia (DVD). FOXP2 has been shown to work co\u2010operatively with FOXP1 in mouse development. An overlap in <jats:italic>FOXP1<\/jats:italic> and <jats:italic>FOXP2<\/jats:italic> expression, both in the songbird and human fetal brain, has suggested that <jats:italic>FOXP1<\/jats:italic> may also have a role in speech and language disorders. We report on a male child with a 0.19\u2009MB intragenic deletion that is predicted to result in haploinsufficiency of <jats:italic>FOXP1<\/jats:italic>. Review of our patient and others reported in the literature reveals an emerging phenotype of GDD\/ID with moderate to severe speech delay where expressive speech is most severely affected. DVD appears not to be a distinct feature in this group. Facial features include a broad forehead, downslanting palpebral fissures, a short nose with broad tip, relative or true macrocephaly, a frontal hair upsweep and prominent digit pads. Autistic traits and other behavioral problems are likely to be associated with haploinsufficiency of <jats:italic>FOXP1<\/jats:italic>. Congenital malformations may be associated. \u00a9 2013 Wiley Periodicals, Inc.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ajmg.a.36174","type":"journal-article","created":{"date-parts":[[2013,10,11]],"date-time":"2013-10-11T21:55:23Z","timestamp":1381528523000},"page":"3166-3175","source":"Crossref","is-referenced-by-count":93,"title":["<i>FOXP1<\/i> mutations cause intellectual disability and a recognizable phenotype"],"prefix":"10.1002","volume":"161","author":[{"given":"Anna K.","family":"Le Fevre","sequence":"first","affiliation":[{"name":"Hunter Genetics Newcastle NSW Australia"},{"name":"John Hunter Children's Hospital Newcastle NSW Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sharelle","family":"Taylor","sequence":"additional","affiliation":[{"name":"Core Interventions Occupational Therapy Services Gosford NSW Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Neva 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