Question

where is titin found ???????

Answer 1

it is found inside our body.
from head to toe in each and every muscle.
because it's a protein.

Answer 2

The protein's in vivo half-life, the time it takes for half of the amount of protein in a cell to break down after its synthesis in the cell, is predicted to be approximately 30 hours (in mammalian reticulocytes). The titin protein is located between the myosin thick filament and the Z disk.