ID 1.14.11.7 DE procollagen-proline 3-dioxygenase. AN procollagen-proline,2-oxoglutarate 3-dioxygenase. AN proline,2-oxoglutarate 3-dioxygenase. AN prolyl 3-hydroxylase. CA 2-oxoglutarate + L-prolyl-[collagen] + O2 = CO2 + succinate + trans-3- CA hydroxy-L-prolyl-[collagen]. CC -!- The enzyme forms a complex with protein disulfide isomerase, and is CC located in the endoplasmic reticulum. CC -!- It modifies proline residues within the procollagen peptide of CC certain collagen types. CC -!- The modification is essential for proper collagen triple helix CC formation. DR Q6JHU8, P3H1_CHICK ; Q32P28, P3H1_HUMAN ; Q3V1T4, P3H1_MOUSE ; DR Q9R1J8, P3H1_RAT ; Q6JHU7, P3H2_CHICK ; Q8IVL5, P3H2_HUMAN ; DR Q8CG71, P3H2_MOUSE ; Q4KLM6, P3H2_RAT ; Q8IVL6, P3H3_HUMAN ; DR Q8CG70, P3H3_MOUSE ; //