Table 1.
Clinical, Pathological, and Mutational Data on Patients with Actin NM
Age at |
Fiber Type(%) |
Fiber Status(%) |
||||||||||
Patient (Family) | Clinical Classificationa | Mode of Inheritanceb | Time of Study | Biopsy | Slow Myosin | Fast Myosin | Fibers with Rods(%) | Atrophied | Hypertrophied | Actin Mutation | Amino Acid Substitution | Binding Sites/Other Functions |
1 | Severe congenital | Sporadic | (Died at 6 mo) | 6 wk | ∼99 | 40–50 | 99 | 5–10 | 0 | ATC→CTC | Ile357Leu | α-Actinin,c tropomyosind |
2 | Severe congenital | Sporadic | (Died at 13 mo) | 5 wk | 50 | 50 | 50 | 5 | 0 | CGC→GGC | Arg183Gly | DNase Ie |
3 | Childhood onset | Sporadic | 10 years | 5 years | 100 | 10–15 | 14 | 5 | 5 | GGT→TGT | Gly268Cys | Filament stabilizationf |
4 | Typical congenital | Sporadic | 45 years | 27 years | 90 | 10 | 98 | 0 | 90 | ATC→ATG | Ile136Met | ? |
5 (A) | Typical congenital | AD | 35 years | 34 years | 100 | 20 | 35 | 30 | 0 | AAC→AGC | Asn115Ser | α-Actinin,g filaminh |
6 (A) | Childhood onset | AD | 19 years | 17 years | 100 | ∼1 | 100 | ∼10 | 0 | AAC→AGC | Asn115Ser | α-Actinin,g filaminh |
7 (A)i | Typical congenital | AD | 4 years | … | … | … | … | … | … | AAC→AGC | Asn115Ser | α-Actinin,g filaminh |