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Table 2 clinical phenotype and position or the function in the actin structure of mutations which were biochemically characterized in Costa et al. 2004 [12].

From: Phenotypes induced by NM causing α-skeletal muscle actin mutants in fibroblasts, Sol 8 myoblasts and myotubes

Mutation

Phenotype

Position or Function in Actin Structure

N115S

typical, NEM

Buried, near nucleotide cleft

M132V

mild, NEM

Buried

G182D

typical, NEM

in nucleotide cleft

R183C

severe, NEM

H-bonds for nucleotide cleft closure

R183G

typical./severe, NEM

H-bonds for nucleotide cleft closure

Q263L

severe, NEM

Surface, near hydrophobic plug

G268C

mild/typical. NEM

F-actin contact, hydrophobic pocket

I357L

Severe, NEM, IRM

buried

  1. NEM = nemaline myopathy, sarcoplasmic nemaline bodies; IRM = intranuclear rod myopathy.