ID 1.14.11.29 DE hypoxia-inducible factor-proline dioxygenase. AN HIF hydroxylase. CA 2-oxoglutarate + L-prolyl-[hypoxia-inducible factor alpha subunit] + O2 = CA CO2 + succinate + trans-4-hydroxy-L-prolyl-[hypoxia-inducible factor CA alpha subunit]. CC -!- Contains iron, and requires ascorbate. CC -!- Specifically hydroxylates a proline residue in HIF-alpha, the alpha CC subunit of the transcriptional regulator HIF (hypoxia-inducible CC factor), which targets HIF for proteasomal destruction. CC -!- The requirement of oxygen for the hydroxylation reaction enables CC animals to respond to hypoxia. DR G5EBV0, EGL9_CAEEL ; Q9GZT9, EGLN1_HUMAN; Q91YE3, EGLN1_MOUSE; DR P59722, EGLN1_RAT ; Q96KS0, EGLN2_HUMAN; Q91YE2, EGLN2_MOUSE; DR Q6AYU4, EGLN2_RAT ; Q9H6Z9, EGLN3_HUMAN; Q91UZ4, EGLN3_MOUSE; DR Q62630, EGLN3_RAT ; Q9NXG6, P4HTM_HUMAN; Q8BG58, P4HTM_MOUSE; //