Research output: Contribution to journal › Article › Academic › peer-review
Molybdenum cofactor deficiency: Identification of a patient with homozygote mutation in the MOCS3 gene. / Huijmans, Jan G. M.; Schot, Rachel; de Klerk, Johannis B. C. et al.
In: American journal of medical genetics. Part A, Vol. 173A, No. 6, 2017, p. 1601-1606.Research output: Contribution to journal › Article › Academic › peer-review
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TY - JOUR
T1 - Molybdenum cofactor deficiency: Identification of a patient with homozygote mutation in the MOCS3 gene
AU - Huijmans, Jan G. M.
AU - Schot, Rachel
AU - de Klerk, Johannis B. C.
AU - Williams, Monique
AU - de Coo, René F. M.
AU - Duran, Marinus
AU - Verheijen, Frans W.
AU - van Slegtenhorst, Marjon
AU - Mancini, Grazia M. S.
PY - 2017
Y1 - 2017
N2 - We describe the clinical presentation and 17 years follow up of a boy, born to consanguineous parents and presenting with intellectual disability (ID), autism, "marfanoid" dysmorphic features, and moderate abnormalities of sulfite metabolism compatible with molybdenum cofactor deficiency, but normal sulfite oxidase activity in cultured skin fibroblasts. Genomic exome analysis revealed a homozygous MOCS3 missense mutation, leading to a p.Ala257Thr substitution in the highly conserved ubiquitin-like-domain of the protein. MOCS3 is the third protein, besides MOCS1 and MOCS2, involved in the biosynthesis of the molybdenum cofactor and has a dual ubiquitin-like function in tRNA thiolation. It is plausible that the phenotype results from deficiency of this dual function, not only from defective synthesis of molybdenum cofactor, which would explain similarities and differences from the MOCS1 and MOCS2-related disorders. This observation should encourage testing of additional ID patients with mild abnormalities of sulfite metabolism for MOCS3 mutations
AB - We describe the clinical presentation and 17 years follow up of a boy, born to consanguineous parents and presenting with intellectual disability (ID), autism, "marfanoid" dysmorphic features, and moderate abnormalities of sulfite metabolism compatible with molybdenum cofactor deficiency, but normal sulfite oxidase activity in cultured skin fibroblasts. Genomic exome analysis revealed a homozygous MOCS3 missense mutation, leading to a p.Ala257Thr substitution in the highly conserved ubiquitin-like-domain of the protein. MOCS3 is the third protein, besides MOCS1 and MOCS2, involved in the biosynthesis of the molybdenum cofactor and has a dual ubiquitin-like function in tRNA thiolation. It is plausible that the phenotype results from deficiency of this dual function, not only from defective synthesis of molybdenum cofactor, which would explain similarities and differences from the MOCS1 and MOCS2-related disorders. This observation should encourage testing of additional ID patients with mild abnormalities of sulfite metabolism for MOCS3 mutations
U2 - 10.1002/ajmg.a.38240
DO - 10.1002/ajmg.a.38240
M3 - Article
C2 - 28544736
VL - 173A
SP - 1601
EP - 1606
JO - American journal of medical genetics. Part A
JF - American journal of medical genetics. Part A
SN - 1552-4825
IS - 6
ER -
ID: 3984661