Amish, Mennonite, and Hutterite
Genetic Disorder Database

Microcephalic osteodysplastic primordial dwarfism, type 1

Disorder
OMIM #: #210710  (Click to access OMIM database)
Disorder: Microcephalic osteodysplastic primordial dwarfism, type 1 
Also known as: MOPD I
OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE I
BRACHYMELIC PRIMORDIAL DWARFISM
TAYBI-LINDER SYNDROME (TALS)
CEPHALOSKELETAL DYSPLASIA
LOW-BIRTH-WEIGHT DWARFISM WITH SKELETAL DYSPLASIA 
Clinical
Phenotype: short stature, intrauterine growth delay, skeletal dysplasia, microcephaly, brachycephaly, short limbs, brain malformation, delayed epiphyseal maturation, dry skin, hyperkeratosis, atrial septal defect, coarctation of aorta, renal hypoplasia, development delay, pachygyria, agenesis of corpus callosum, sudden death 
Seen In: Amish
Old Order Mennonite
Old Colony Mennonite
Unknown/Other Mennonite
Hutterite
Remarks:

Testing is available at LHSC.

 

Mutations
1   Amish  
Gene: RNU4ATAC
Base Change: n.51G>A
Amino Acid Change:
Last updated: 2022-11-07 

References
Benoit-Pilven C, Besson A, Putoux A, Benetollo C, Saccaro C, Guguin J, Sala G, Cologne A, Delous M, Lesca G, Padgett RA, Leutenegger AL, Lacroix V, Edery P, Mazoyer S. (2020) Clinical interpretation of variants identified in RNU4ATAC, a non-coding spliceosomal gene. PLoS One Jul 6;15(7):e0235655.
PubMed ID: 32628740 
He H, Liyanarachchi S, Akagi K, Nagy R, Li J, Dietrich RC, Li W, Sebastian N, Wen B, Xin B, Singh J, Yan P, Alder H, Haan E, Wieczorek D, Albrecht B, Puffenberger E, Wang H, Westman JA, Padgett RA, Symer DE. (2011) Mutations in U4atac snRNA, a Component of the Minor Spliceosome, in the Developmental Disorder MOPD I. Science 332(6026):238-40.
PubMed ID: 21474760 

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