Amish, Mennonite, and Hutterite
Genetic Disorder Database

Intellectual developmental disorder, autosomal recessive 41

Disorder
OMIM #: #615637  (Click to access OMIM database)
Disorder: Intellectual developmental disorder, autosomal recessive 41 
Also known as: MRT41 
Clinical
Phenotype: mild-sever developmental delay, motor delay, anxiety, stereotyped behavior, dysmorphic features include macrocephaly, frontal bossing, craniosynostosis, scaphocephaly, broad nasal bridge, hooded eyelids with small, downslanting palpebral fissures, prominent chin, seizure disorder, hypotonia 
Seen In: Amish
Old Order Mennonite
Old Colony Mennonite
Unknown/Other Mennonite
Hutterite
Remarks: Autosomal recessive 
Mutations
1   Amish  
Gene: KPTN
Base Change: C>A, at nucleotide 776
Amino Acid Change: ser 259 --> term
2   Amish  
Gene: KPTN
Base Change: c.714_731dup18
Amino Acid Change: p.Met241_Gln246dup
Last updated: 2023-02-02 

References
Baple EL, Maroofian R, Chioza BA, Izadi M, Cross HE, Al-Turki S, Barwick K, Skrzypiec A, Pawlak R, Wagner K, Coblentz R, Zainy T, Patton MA, Mansour S, Rich P, Qualmann B, Hurles ME, Kessels MM, Crosby AH. (2014) Mutations in KPTN cause macrocephaly, neurodevelopmental delay, and seizures. Am J Hum Genet Jan 2;94(1):87-94.
PubMed ID: 24239382 

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