ACTN3

ACTN3: ACTN3, or Alpha-actinin-3, is a gene that encodes a protein primarily found in fast-twitch muscle fibers. These fibers are crucial for rapid and powerful muscle contractions, commonly associated with explosive athletic performance. Variations in this gene, particularly the R577X polymorphism, have been linked to differing capabilities in sprint and endurance activities, making it a gene of interest in sports genetics.

ACTN3

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