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Clinical and genetic characterization of individuals with predicted deleterious PHIP variants
Ist Teil von
Cold Spring Harbor molecular case studies, 2019-08, Vol.5 (4), p.a004200
Ort / Verlag
United States: Cold Spring Harbor Laboratory Press
Erscheinungsjahr
2019
Quelle
Free E-Journal (出版社公開部分のみ)
Beschreibungen/Notizen
Heterozygous deleterious variants in
have been associated with behavioral problems, intellectual disability/developmental delay, obesity/overweight, and dysmorphic features (BIDOD syndrome). We report an additional 10 individuals with pleckstrin homology domain-interacting protein (
)-predicted deleterious variants (four frameshift, three missense, two nonsense, and one splice site; six of which are confirmed de novo). The mutation spectrum is diverse, and there is no clustering of mutations across the protein. The clinical phenotype of these individuals is consistent with previous reports and includes behavioral problems, intellectual disability, developmental delay, hypotonia, and dysmorphic features. The additional individuals we report have a lower frequency of obesity than previous reports and a higher frequency of gastrointestinal problems, social deficits, and behavioral challenges. Characterizing additional individuals with diverse mutations longitudinally will provide better natural history data to assist with medical management and educational and behavioral support.