Prolyl 4-hydroxylase: molecular cloning and the primary structure of the alpha subunit from chicken embryo. How to Cite. Myllyharju, J. (2013), Prolyl 4-hydroxylases, master regulators of the hypoxia response. Acta Physiologica, 208: 148–165. doi: 10.1111/apha.12096 Procollagen-proline dioxygenase, commonly known as prolyl hydroxylase, is a member of the class of enzymes known as 2-oxoglutarate-dependent dioxygenases. Reaction catalyzed by prolyl 4-hydroxylase when (A) a Pro-containing peptide or (B) a flp-containing peptide is the substrate. Boc-FlpOH and Boc-flpOH were from. Prolyl 4-hydroxylase subunit alpha-1 is an enzyme that in humans is encoded by the P4HA1 gene. [1] [2] This gene encodes a component of prolyl 4-hydroxylase, a key. Detect Prolyl 4-hydroxylase β using this Anti-Prolyl 4-hydroxylase β Antibody, clone 3-2B12 validated for use in ELISA, WB, IH(P). Anti-Prolyl 4-hydroxylase β Antibody, clone 6-9H6 detects level of Prolyl 4-hydroxylase β & has been published & validated for use in ELISA, WB, IH(P). Catalyzes the post-translational formation of 4-hydroxyproline in -Xaa-Pro-Gly- sequences in collagens and other proteins. Introduction Most polypeptides are built from 20 amino-acid building blocks. Even greater molecular diversity is attainable by chemical modification of these. The collagen prolyl 4-hydroxylases (P4Hs), enzymes residing within the endoplasmic reticulum, have a central role in the biosynthesis of collagens. In addition.