Molecular analysis for Phd2 CKO and Phd1/3 DKO mice. (A) Autoradiography of [35S]methionine-labeled PHD1, 2 and 3 produced by IVTT. Free, unincorporated [35S]methionine. (B) Western blotting analysis for PHD1, -2, and -3 in various tissues from wild-type adult mice. Equal amounts of IVTT-produced PHD1, -2, and -3 proteins were loaded as controls. Note PHD1 had 2 bands because of alternative translational initiation. (C) Anti-PHD2 Western blots for Phd1/3 DKO tissues. (D) Anti-HIF-1α and HIF-2α Western blots for Phd2 CKO and Phd1/3 DKO mice. (E,F) Q-PCR analysis for Epo mRNA. f/f, Phd2f/f; CKO, Phd2 CKO; WT, wild-type; DKO, Phd1/3 DKO. n = 6. (F) The scale in panel E was reduced. **P < .01; *P < .05. Error bars represent SEM.