TNNI1 compares with the fast twitch skeletal muscle and cardiac TnI isoform genes ( TNNT2 and TNNT3 ) .
TNNI1 has a broader range of expression in avian and mammalian striated muscles .
Comparing with the fast twitch skeletal muscle and cardiac TnI isoform genes ( TNNT2 and TNNT3 ) , TNNI1 has a broader range of expression in avian and mammalian striated muscles .