Table-2.
Mutations included in the molecular diagnostic algorithm, and their corresponding details, including their occurrence in the study group (n=67) and families (n=33), number of patients/groups and their allelic state.
| Diagnostic algorithm mutation placement | Total number of patients (%)/family (%) | Groups | Number of Homozygote/Heterozygote (Presence of rhabdomyolysis) | ||||
|---|---|---|---|---|---|---|---|
| I | II | III | |||||
| 1 | SL | p.Met1Val | 27 (40.3)/11 (33.3) | 13 | 10 | 4 | 22/5 (+) |
| 2 | SG1 | p.Arg576* | 6 (8.9)/4 (12.1) | 5 | – | 1 | 4/2 (+) |
| 3 | SR1 | c.1827+7A>G | 5 (7.5)/4 (12.1) | 4 | 1 | – | 3/2 (+) |
| 4 | SD | c.772+2_3delTG | 5 (7.5)/3 (9) | 3 | 1 | 1 | 3/2* (+) |
| 5 | CD | p.Phe710del | 4 (5.9)/2 (6) | 2 | 1 | 1 | 4/0 (+) |
| 6 | FS1 | p.Lys754Asnfs | 2 (2.9)/1 (3) | 2 | – | – | 2/0 (−) |
| 7 | SG2 | p.Arg50* | 1 (1.5)/1 (3) | 1 | – | – | 1/0 (−) |
Group I, proband(s) clinically evaluated and diagnosed confirmed by muscle biopsy; Group II, relative of proband, clinically affected without by muscle biopsy; Group III, relative of proband, without clinical examination or a muscle biopsy.
Two siblings compound heterozygote with p.Met1Val, which are also included in the p.Met1Val row.