Table 1.
Clinical, Biochemical, and Neuroradiological Findings in Individuals with Mutations in CLPB
Individual, Gender | Family | ID | Change (aa) | Neutropenia | Generalized Brain Atrophy | Movement Disorder | Muscle Tone | Cataracts | 3-MGA-Uria | Current Age | Other |
---|---|---|---|---|---|---|---|---|---|---|---|
#1, m | 1 | no | p.Met411Ile and p.Tyr617Cys | CS | ND | − | normal | - | + | 10 years | |
#2, f | 1 | no | p.Met411Ile and p.Tyr617Cys | CM | − | − | normal | + | + | 8 years | |
#3, m | 2 | moderate | p.Arg408Gly and p.Arg417∗ | IS | ND | ataxia | floppy infant, mild truncal hypotonia | − | + | 5 years 9 months | neonatal hypoglycaemia, microcephaly |
#4, m | 2 | moderate | p.Arg408Gly and p.Arg417∗ | − | ND | − | floppy infant, mild truncal hypotonia | + | + | 2 years 2 months | neonatal hypoglycaemia, microcephaly |
#5, f | 2 | moderate | p.Arg408Gly and p.Arg417∗ | − | ND | − | floppy infant, mild truncal hypotonia | − | + | 2 years 2 months | neonatal hypoglycaemia, microcephaly |
#6, f | 4 | mild | p.Glu435_Gly436delinsAspPro and p.Gly646Val | CM | +a | ataxia, dysarthria, tremor | mild tetraspasticity | + | + | 18 years | microcephaly, hypothyreoidea, hypergonadotropic hypogonadism |
#7, f | 5 | severe | p.Cys486Arg homozygous | − | + | dystonia | floppy infant, progressive tetraspasticity | + | + | 17 years | microcephaly IUGR, epilepsy, hypothyreoidea, mild cardiac septal hypertrophy, nystagmus |
#8, f | 5 | severe | p.Cys486Arg homozygous | − | + | dystonia, athetosis | floppy infant, progressive tetraspasticity | − | + | 9 years | microcephaly, epilepsy, nystagmus |
#9, f | 6 | severe | p.Ala591Val homozygous | CS | + | hyperkinesia, dystonia | floppy infant, progressive tetraspasticity | + | + | 3 years 10 monthsb | microcephaly, IUGR, neonatal hypoglycaemia, life-threatening drooling |
#10, m | 7 | severe | p.Tyr272Cys and p.Tyr567Cys | CS | + | − | floppy infant, progressive tetraspasticity | ND | ND | 3 monthsb | hepatosplenomegaly, leukemia, facial dysmorphism |
#11, f | 7 | severe | p.Tyr272Cys and p.Tyr567Cys | CS | + | − | floppy infant, generalized hypotonia | ND | + | 3 monthsb | hepatosplenomegaly, myelodysplastic and preleukemic syndrome, facial dysmorphism |
#12, f | 8 | severe | p.Cys647Leufs∗26 and p.Ile682Asn | CM | + | ataxia, tremor | stiff baby | − | + | 5 monthsb | microcephaly, IUGR, epilepsy |
#13, m | 9 | severe | p.Arg250∗, p.Arg417∗, and p.Glu501Lys | CS | ND | jittery | stiff baby | ND | + | 24 daysb | epilepsy |
#14, m | 9 | severe | p.Arg250∗, p.Arg417∗, and p.Glu501Lys | CS | ND | ND | stiff baby | ND | ND | 54 daysb | IUGR, mild dilated cardiomyopathy |
All individuals are of European descent. Abbreviations are as follows: CM, chronic moderate; CS, chronic severe; ID, intellectual disability; IS, intermittent severe; IUGR, intrauterine growth retardation; ND, no data; 3-MGA-uria, 3-methylglutaconic aciduria.
Isolated cerebellar atrophy.
Age deceased.