Table 1.
Subject | Dx | Gene | Mutation | Residual Enzyme Activity in Cultured Fibroblasts |
Age (yrs) |
Gender | BMI |
---|---|---|---|---|---|---|---|
1 | VLCAD | ACADVL #609575 |
Not identified | 0% of control VLCAD activity* |
20 | F | 31.3 |
2 | LCHAD | HADHA #600890 |
c. 1528G>C/ c.1528G>C |
17 | F | 27.8 | |
3 | LCHAD | HADHA #600890 |
c. 1528G>C/ c.1528G>C |
11.8** mol/min/mg protein |
14 | M | 19.3 |
4 | LCHAD | HADHA #600890 |
c.1528G>C/ c.1678C>T |
16 | M | 23.8 | |
5 | LCHAD | HADHA #600890 |
c. 1528G>C/ c.1528G>C |
7 | M | 16.6 | |
6 | CPT2 | CPT2 #600650 |
Not available | 20% of control CPT2 activity* | 37 | F | 29.9 |
7 | LCHAD | HADHA #600890 |
c. 1528G>C/ c.2102A>G |
7 | M | 19.2 | |
8 | LCHAD | HADHA #600890 |
c. 1528G>C/ c.1528C>T |
16 | F | 22.6 | |
9 | LCHAD | HADHA #600890 |
c.1528G>C/exon 3 splice A+3G |
9 | M | 27.4 | |
10 | CPT2 | CPT2 #600650 |
common mutations not detected*** |
0.060**** nmol/min/mg protein* |
17 | F | 22.7 |
11 | LCHAD | HADHA #600890 |
c.1528G> C/ c.1132C>T |
8 | M | 18.8 |
Dx = diagnosis; VLCAD = very long-chain acylCoA dehydrogenase deficiency; LCHAD = long-chain 3-hydroxyacylCoA dehydrogenase deficiency; CPT2= Carnitine Palmitoyltransferase 2 deficiency; Gene = specific gene with disease associated mutations & OMIM #; yrs = years; F = Female; M = male; BMI = body mass index (weight in kilograms/ (height in meters)2)
diagnosis confirmed by disease specific change in acylcarnitines during bouts of rhabdomyolysis
reference range for normal LCHAD activity = 43.6–89.9 nmol/min/mg protein
common mutations = p. 113S>L, p. 50P>H and p. 413 Q >fs; fs= frame shift
reference range for normal CPT 2 activity: 0.07 – 0.21 nmol/min/mg protein