XYLT2 gene

xylosyltransferase 2

The information on this page was automatically extracted from online scientific databases.

From NCBI Gene:

The protein encoded by this gene is an isoform of xylosyltransferase, which belongs to a family of glycosyltransferases. This enzyme transfers xylose from UDP-xylose to specific serine residues of the core protein and initiates the biosynthesis of glycosaminoglycan chains in proteoglycans including chondroitin sulfate, heparan sulfate, heparin and dermatan sulfate. The enzyme activity, which is increased in scleroderma patients, is a diagnostic marker for the determination of sclerotic activity in systemic sclerosis. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Dec 2013]

From UniProt:

Involved in the formation of heparan sulfate and chondroitin sulfate proteoglycans (PubMed:26027496). Probably catalyzes the first step in biosynthesis of glycosaminoglycan. Transfers D-xylose from UDP-D-xylose to specific serine residues of the core protein. Initial enzyme in the biosynthesis of chondroitin sulfate and dermatan sulfate proteoglycans in fibroblasts and chondrocytes (By similarity). Its enzyme activity has not been demonstrated.

From NCBI Gene:

  • Spondyloocular syndrome, autosomal recessive
  • Pseudoxanthoma elasticum

From UniProt:

Pseudoxanthoma elasticum (PXE): A multisystem disorder characterized by accumulation of mineralized and fragmented elastic fibers in the skin, vascular walls, and Burch membrane in the eye. Clinically, patients exhibit characteristic lesions of the posterior segment of the eye including peau d'orange, angioid streaks, and choroidal neovascularizations, of the skin including soft, ivory colored papules in a reticular pattern that predominantly affect the neck and large flexor surfaces, and of the cardiovascular system with peripheral and coronary arterial occlusive disease as well as gastrointestinal bleedings. [MIM:264800]

Spondyloocular syndrome (SOS): A syndrome characterized by cataract, loss of vision due to retinal detachment, facial dysmorphism, facial hypotonia, normal height with disproportional short trunk, osteoporosis, immobile spine with thoracic kyphosis and reduced lumbal lordosis. [MIM:605822]

Cytogenetic Location: 17q21.33, which is the long (q) arm of chromosome 17 at position 21.33

Molecular Location: base pairs 50,346,032 to 50,361,185 on chromosome 17 (Homo sapiens Annotation Release 108, GRCh38.p7) (NCBI)

Cytogenetic Location: 17q21.33, which is the long (q) arm of chromosome 17 at position 21.33
  • PXYLT2
  • SOS
  • XT-II
  • XT2
  • xylT-II