PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21907923-2 2011 Reduced AMPK levels lead to diminished expression of the DMT1 iron transporter, and the resulting cytosolic iron deficiency activates the iron regulatory proteins, IRP1 and IRP2, and increases expression of the hypoxia inducible factor HIF-1alpha, but not HIF-2alpha. Iron 108-112 hypoxia inducible factor 1 subunit alpha Homo sapiens 236-246