EOG88PQ0F GO:0004656 10/10 procollagen-proline 4-dioxygenase activity molecular_function "Catalysis of the reaction: procollagen L-proline + 2-oxoglutarate + O2 = procollagen trans-4-hydroxy-L-proline + succinate + CO2." [EC:1.14.11.2] EOG88PQ0F GO:0016702 10/10 oxidoreductase activity, acting on single donors with incorporation of molecular oxygen, incorporation of two atoms of oxygen molecular_function "Catalysis of an oxidation-reduction (redox) reaction in which hydrogen or electrons are transferred from one donor, and two oxygen atoms is incorporated into a donor." [GOC:mah] EOG88PQ0F GO:0005783 10/10 endoplasmic reticulum cellular_component "The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached)." [ISBN:0198506732] EOG88PQ0F GO:0005506 8/10 iron ion binding molecular_function "Interacting selectively and non-covalently with iron (Fe) ions." [GOC:ai] EOG88PQ0F GO:0031418 8/10 L-ascorbic acid binding molecular_function "Interacting selectively and non-covalently with L-ascorbic acid, (2R)-2-[(1S)-1,2-dihydroxyethyl]-4-hydroxy-5-oxo-2,5-dihydrofuran-3-olate; L-ascorbic acid is vitamin C and has co-factor and anti-oxidant activities in many species." [CHEBI:38290, GOC:mah]