alpha actinin 3

alpha actinin 3

One (of three) alpha actinins, which is expressed only in fast twitch fibres. AA3 interacts with AA2 and appears to help muscles contract faster, increasing speed and force, which are critical for performance of elite athletes.
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Abbreviations SNP - single nucleotide polymorphism ACE - angiotensin converting enzyme ACTN3 - alpha actinin 3 BRDKB2 - bradykinin receptor B2 GWAS - genome-wide association studies BASES - British Association of Sport and Exercise Sciences DNA - deoxyribonucleic acid