The endogenous mouse Entpd1 gene was replaced by human ENTPD1 gene. While hENTPD1 mice (Stock No.NM-HU-200004) have been pulled from shelves for some reasons.While hENTPD1(3)(Stock No.NM-HU-210035) mice function similarly to hENTPD1(2) mice,for more detailed information please contact our technical advisor. (J:238766)