Amish, Mennonite, and Hutterite
Genetic Disorder Database

Ornithine transcarbamylase deficiency

Disorder
OMIM #: #311250  (Click to access OMIM database)
Disorder: Ornithine transcarbamylase deficiency 
Also known as: ORNITHINE CARBAMOYLTRANSFERASE DEFICIENCY OTC DEFICIENCY 
Clinical
Phenotype: hyperammonemia, protein avoidance, vomtigin, developmental delay, encephalopathy, respiratory alkalosis, abnormal amino acid levels 
Seen In: Amish
Old Order Mennonite
Old Colony Mennonite
Unknown/Other Mennonite
Hutterite
Remarks: X-linked 
Mutations
1   Amish  
Gene: OTC
Base Change: G>A, at nucleotide 422
Amino Acid Change: arg 141 --> gln
2   Amish  
Gene: OTC
Base Change: c.298+1G >A
Amino Acid Change: splicing defect
Last updated: 2022-11-11 

References
Lynch MT, Maloney KA, Pollin TI, Streeten EA, Xu H; Regeneron Genetics Center, Shuldiner AR, Van Hout CV, Gonzaga-Jauregui C, Mitchell BD. (2021) The burden of pathogenic variants in clinically actionable genes in a founder population. Am J Med Genet A Aug 31. doi: 10.1002/ajmg.a.62472.
PubMed ID: 34467620 

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