Prolyl 3-hydroxylase 1 (P3h1)

Basement membrane-associated chondroitin sulfate proteoglycan (CSPG). Has prolyl 3-hydroxylase activity catalyzing the post-translational formation of 3-hydroxyproline in -Xaa-Pro- Gly- sequences in collagens, especially types IV and V.

May be involved in the secretory pathway of cells. Has growth suppressive activity in fibroblasts (By similarity).