several markers of collagen biosynthesis were shown to be increased , including prolyl hydroxylase ( ec 1.14.11.2 ; proline , 2-oxoglutarate dioxygenase ) , prolyl hydroxylase-related antigen , total collagen content , and the incorporation of [ ( 3 ) h ] proline into total protein and into collagen .
C0599874
dioxygenase
C3665675
prolyl