I band
A region of a sarcomere that appears as a light band on each side of the Z disc, comprising a region of the sarcomere where thin (actin) filaments are not overlapped by thick (myosin) filaments; contains actin, troponin, and tropomyosin; each sarcomere includes half of an I band at each end.
GO:0110165
cellular anatomical structure
is_a
GO:0030017
sarcomere
part_of
I disc
exact
J disc
exact
isotropic disc
exact