A mutational hotspot in AMOTL1 defines a new syndrome of orofacial clefting, cardiac anomalies, and tall stature

Alanna Strong, Soumya Rao, Sandra von Hardenberg, Dong Li, Liza L. Cox, Paul C. Lee, Li Q. Zhang, Waheed Awotoye, Tamir Diamond, Jessica Gold, Catherine Gooch, Lord Jephthah Joojo Gowans, Hakon Hakonarson, Anne Hing, Kathleen Loomes, Nicole Martin, Mary L. Marazita, Tarja Mononen, David Piccoli, Rolph PfundtSalmo Raskin, Stephen W. Scherer, Nara Sobriera, Courtney Vaccaro, Xiang Wang, Deborah Watson, Rosanna Weksberg, Elizabeth Bhoj, Jeffrey C. Murray, Andrew C. Lidral, Azeez Butali, Michael F. Buckley, Tony Roscioli, David A. Koolen, Laurie H. Seaver, Cynthia A. Prows, Rolf W. Stottmann, Timothy C. Cox

Research output: Contribution to journalArticlepeer-review


AMOTL1 encodes angiomotin-like protein 1, an actin-binding protein that regulates cell polarity, adhesion, and migration. The role of AMOTL1 in human disease is equivocal. We report a large cohort of individuals harboring heterozygous AMOTL1 variants and define a core phenotype of orofacial clefting, congenital heart disease, tall stature, auricular anomalies, and gastrointestinal manifestations in individuals with variants in AMOTL1 affecting amino acids 157–161, a functionally undefined but highly conserved region. Three individuals with AMOTL1 variants outside this region are also described who had variable presentations with orofacial clefting and multi-organ disease. Our case cohort suggests that heterozygous missense variants in AMOTL1, most commonly affecting amino acid residues 157–161, define a new orofacial clefting syndrome, and indicates an important functional role for this undefined region.

Original languageEnglish
Pages (from-to)1227-1239
Number of pages13
JournalAmerican Journal of Medical Genetics, Part A
Issue number5
StatePublished - May 2023


  • YAP
  • cleft lip
  • cleft palate
  • congenital heart disease
  • exome sequencing
  • genome sequencing


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