SLC22A3 (solute carrier family 22 (extraneuronal monoamine transporter), member 3; OCT3) is reported
to be imprinted in first trimester placentae (the number of samples is not
clear), but not in fetal tissues, nor in term placenta (Monk
D et al 2006).
No evidence of imprinted expression was found in a survey of numerous adult tissues (Baran Y et al 2015).