ACTN3

🧬 AI profile — grown from 6ic coverage The ACTN3 gene is a variant of the ACTN3 gene that codes for the alpha-actinin-3 protein, primarily found in fast-twitch muscle fibers. This protein plays a crucial role in muscle contraction and relaxation. Research suggests that individuals with the R577X variant of the ACTN3 gene may be more susceptible to delayed onset muscle soreness (DOMS) due to its association with faster muscle contraction and relaxation.