This entry represents the N-terminal GT domain found in the family of collagen lysyl hydroxylases (LH or PLOD). Enzymes belonging this family catalyse the lysine hydroxylation of collagens using Fe2+, 2-oxoglutarate, ascorbate and molecular oxygen [1 ...
This entry represents the N-terminal GT domain found in the family of collagen lysyl hydroxylases (LH or PLOD). Enzymes belonging this family catalyse the lysine hydroxylation of collagens using Fe2+, 2-oxoglutarate, ascorbate and molecular oxygen [1,2]. In humans, PLOD genes encode for three LH enzyme isoforms sharing significant sequence similarity. Mutations in PLOD genes that reduce or abolish their activity are associated with severe connective tissue diseases including Ehlers-Danlos and Bruck syndromes [3,4]. PLOD3 is considered the evolutionary ancestor of the family as this isoform is the only one capable of further processing of hydroxylysines through glycosylation, whereas other isoforms might have lost such capability during evolution. These enzymes consist of three domains encompassing multiple active sites. The two N-terminal domains have a topology typical for glycosyltransferases whereas the C-terminal has a DSBH fold. The domain represented by this entry is the only catalytically active domain and is the solely responsible for the glycosyltransferase activity.
