Tamoxifen-inducible conditional knockout (CKO) mice were generated to explore the function of Gcn1 in adult mice using the Cre/loxP system. To analyze the function of GCN1 in the inguinal white adipose tissue (iWAT), we compared the whole cell proteome of eWAT harvested from GCN1 CKO mice with that of wild-type mice.