Amish, Mennonite, and Hutterite
Genetic Disorder Database

Neurodevelopmental disorder with hypotonia, craniofacial abnormalities, and seizures

Disorder
OMIM #: #614501  (Click to access OMIM database)
Disorder: Neurodevelopmental disorder with hypotonia, craniofacial abnormalities, and seizures 
Also known as: NEDHCS
Psychomotor retardation, epilepsy, and craniofacial dysmorphism
PMRED
Symptomatic epilepsy and skull dysplasia 
Clinical
Phenotype: skull dysplasia, craniosynostosis, severe developmental delay, severe motor delay, intractable seizures, hypotonia,vhyporeflexia, bulbous nose, high0-arched palate, wide mouth, macroglossia, midfacial hypoplasia, micrognathia, broad jaw with protuberant angles, short hands, short tapered fingers, broad thumbs, congenital heart defects, cardiomyopathy, respiratory distress 
Seen In: Amish
Old Order Mennonite
Old Colony Mennonite
Unknown/Other Mennonite
Hutterite
Remarks: Autosomal recessive 
Mutations
1   Amish  
Gene: SNIP1
Base Change: A>G, at nucleotide 1097
Amino Acid Change: glu 336 --> gly
Last updated: 2023-02-02 

References
Ammous Z, Rawlins LE, Jones H, Leslie JS, Wenger O, Scott E, Deline J, Herr T, Evans R, Scheid A, Kennedy J, Chioza BA, Ames RM, Cross HE, Puffenberger EG, Harries L, Baple EL, Crosby AH. (2021) A biallelic SNIP1 Amish founder variant causes a recognizable neurodevelopmental disorder. PLoS Genet Sep 27;17(9):e1009803.
PubMed ID: 34570759 
Puffenberger EG, Jinks RN, Sougnez C, Cibulskis K, Willert RA, Achilly NP, Cassidy RP, Fiorentini CJ, Heiken KF, Lawrence JJ, Mahoney MH, Miller CJ, Nair DT, Politi KA, Worcester KN, Setton RA, Dipiazza R, Sherman EA, Eastman JT, Francklyn C, Robey-Bond S, Rider NL, Gabriel S, Morton DH, Strauss KA. (2012) Genetic mapping and exome sequencing identify variants associated with five novel diseases. PLoS One 7(1):e28936.
PubMed ID: 22279524 

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