Rat CL-6 is the most highly insulin-induced gene in a liver cell Line
and is expressed in proliferating liver during regeneration and develo
pment, CL-6 is now denoted INSIG1 (insulin-induced gene 1), Human INSI
G1 was isolated and found to be 80% identical to the rat gene within t
he translated region. It was located on human chromosome 7 within band
q36. The human lNSIG1 promoter conferred a high level of expression i
n both liver and fibroblast cell lines, INSIG1 expression was upregula
ted at the transcriptional level in rat regenerating liver and induced
in a model of murine adipocyte differentiation, suggesting that INSIG
1 may play a role in growth and differentiation of tissues involved in
metabolic control. (C) 1997 Academic Press.