COPG2 (coatomer protein complex, subunit gamma 2) was preferentially expressed from the maternal
allele in brain (89%) and kidney (73%) tissue from day 135 fetuses, suggesting that COPG2 is
imprinted (Duan J et al, 2018).
Previously, it was reported that COPG2 is not imprinted in adult sheep (Khatib H et al, 2005).
It is reported to be imprinted in mouse, but probably not in humans.