Answer Posted / swapna

The name of the recently proclaimed ?athletic gene? is
ACTN3. This gene, located at 11q13-q14, is responsible for
the production of alpha actinin-3 (OMIM, 2004). Actinin-3
is found in fast-twitch (type 2) muscles and is believed to
allow muscles the ability to generate a greater amount of
force at higher velocities of movement.

In words that even the most unintelligent sports fan could
understand: this gene allows you to run faster, jump
higher, and hit harder. Actinin-3 is a part of a family of
actin-binding proteins and is related to dystrophin. There
are two different genes located in the human body that are
able to produce actinin.

ACTN3 is one and the other is ACTN2. Unlike ACTN3, the
presence of ACTN2 is found universally in all skeletal
muscle, not just type 2. In all the research surrounding
ACTN3 a strong connection could not be made to show that
any dependency existed between the functions of ACTN3 and
ACTN2.

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