Three SREBP isoforms, SREBP-1a, SREBP-1c and SREBP-2, have been
identified in mammalian cells. Among them, SREBP-1a
and SREBP-1c were encoded by a same gene SREBF-1
while SREBP-2 was encoded by SREBF-2. The biological
function of SREBP-1 is to control the lipogenic gene