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. 2014 Feb 14;37(5):801–812. doi: 10.1007/s10545-014-9682-y

Table 1.

Genetic and phenotypic findings of patients with β-ureidopropionase deficiency

Patient No. Origin Consanguinity Sex Age at diagnosis (years) Age at follow-up (years) Symptom Genotype Effect Location Reference
1 Japan - F 0.2 5.0 Seizures (West syndrome) c.[977G > A] + [977G > A] p.[R326Q] + [R326Q] Ex 9 van Kuilenburg, et al 2012
2 Japan - M 3.5 16.0 MR, Autism c.[977G > A] + [977G > A] p.[R326Q] + [R326Q] Ex 9 Present study
3 Japan - M 1.0 2.8 Motor retardation MR c.[811G > A] + [977G > A] p.[E271K] + [R326Q] Ex 7, Ex 9 Present study
Turkeya) + M 0.8 NA Seizures c.[1076C > T] + [1076C > T] p.[T359M] + [T359M] Ex 10 van Kuilenburg, et al 2012
Egyptb) + F Birth NA Seizures, MC c.[105-2A > G] + [105-2A > G] splicing Int 1 van Kuilenburg, et al 2012
Egyptb) + M Birth NA Seizures, MC No DNA available van Kuilenburg, et al 2012
Egypt + M 0.8 NA Seizures, MR, hypotonia c.[38 T > C] + [38 T > C] p.[L31S] + [L31S] Ex 1 van Kuilenburg, et al 2012
Pakistan + F 2.0 NA MC, MR, hypotonia, Autism c.[792C > A] + [873 + 1G > A] p.[S264R] + splicing Ex7, Int 7 van Kuilenburg, et al 2012
China M 1.1 NA MC, MR c.[977G > A] + [977G > A] p.[R326Q] + [R326Q] Ex 9 van Kuilenburg, et al 2012
Germany F 0.9 NA Seizures, hypotonia c.[703 > A] + [917-1G > A] p.[G235R] + splicing Ex 6, Int 8 van Kuilenburg, et al 2012
China M 3.0 NA MR c.[706C > T] + [792C> A] p.[R236W] + [S264R] Ex 6, Ex 7 van Kuilenburg, et al 2012
Turkey + F 5.3 NA MR, hypotonia c.[105-2A > G] + [917-1G > A] splicing Int 1, Int 8 Assmann et al 1998; van Kuilenburg 2004
Turkey + F 3.0 NA Seizures, MR c.[105-2A > G] + [105-2A > G] splicing Int 1 van Kuilenburg 2004
Germany M 0.9 NA Seizures, MC, MR, hypotonia c.[917-1G > A] + [917-1G > A] splicing Int 8 Assmann et al 2006; van Kuilenburg 2004
African F 1.0 NA Seizures c.[254C > A] + [254C > A] p.[A85E] + [A85E] Ex 2 van Kuilenburg 2004
Australia M 1.0 NA Urogenital and colorectal system anomalies c.[209G > C] + [105-2A > G] p.[R70P] + splicing Ex 2 Int 1 Yaplito-Lee et al 2008
Turkeya) F 30, CT NA AS c.[1076C > T] + [1076C > T] p.[T359M] + [T359M] Ex 10 van Kuilenburg, et al 2012
Egyptb) M 27, CT NA AS c.[105-2A > G] + [105-2A > G] splicing Int 1 van Kuilenburg, et al 2012
4 Japan M NS 5.3 Absence seizure, febrile seizure c.[977G > A] + [977G > A] p.[R326Q] + [R326Q] Ex 9 Present study
5* Japan F NS 5.5 AS c.[857 T > C] + [977G > A] p.[I286T] + [R326Q] Ex7, Ex9 Present study
6* Japan F NS 5.5 AS, hypermetropia c.[857 T > C] + [977G > A] p.[I286T] + [R326Q] Ex7, Ex9 Present study
7 Japan M NS 10.5 AS c.[977G > A] + [977G > A] p.[R326Q] + [R326Q] Ex 9 Present study
8 Japan M NS 2.5 AS c.[977G > A] + [977G > A] p.[R326Q] + [R326Q] Ex 9 Present study
9 Japan F NS 2.9 AS c.[977G > A] + [977G > A] p.[R326Q] + [R326Q] Ex 9 Present study
10 Japan M NS 1.3 AS c.[91G > A] + [977G > A] p.[G31S] + [R326Q] Ex1, Ex 9 Present study
11 Japan F NS 2.3 AS c.[977G > A] + [977G > A] p.[R326Q] + [R326Q] Ex 9 Present study
12 Japan F NS 1.7 AS c.[977G > A] + [977G > A] p.[R326Q] + [R326Q] Ex 9 Present study
13 Japan F NS 1.1 AS c.[91G > A] + [977G > A] p.[G31S] + [R326Q] Ex1, Ex 9 Present study

NA = not available, NS = neonatal screening, CT = carrier testing, AS = asymptomatic, MR = mental retardation, MC = microcephaly,

* Patient 5 and 6 are twin siblings. a) indicates same family members (child and mother). b) indicates same family members (two siblings and father)

Biochemical data of patient 1, 2, 4, 5, 6 and 7 were previously reported (Kuhara et al 2009)