UniprotKB/SwissProt ID: Q9WVL6 (Q9WVL6)
Gene Name:
Extl3
Organism: Mus musculus (Mouse)
Function: Glycosyltransferase which regulates the biosynthesis of heparan sulfate (HS) (PubMed:19336225). Initiates HS synthesis by transferring the first N-acetyl-alpha-D-glucosamine (alpha-GlcNAc) residue (GlcNAcT-I activity) to the tetrasaccharide linker (GlcA-Gal-Gal-Xyl-)Ser core linker. May also transfer alpha-GlcNAc residues during HS elongation (GlcNAcT-II activity). Lacks glucuronyl transferase II (GlcAT-II) activity. Important for both skeletal development and hematopoiesis, through the formation of HS proteoglycans (HSPGs) (By similarity). Through the synthesis of HS, regulates postnatal pancreatic islet maturation and insulin secretion (PubMed:19336225) Receptor for REG3A, REG3B and REG3G, induces the activation of downstream signaling pathways such as PI3K-AKT or RAS-RAF-MEK-ERK signaling pathway (PubMed:28811323, PubMed:35263589, PubMed:36240758). Required for the function of REG3A in regulating keratinocyte proliferation and differentiation (By similarity). Required for the inhibition of skin inflammation mediated by REG3A through the activation of PI3K-AKT-STAT3 pathway (By similarity). Required for the function of REG3A and REG3G in glucose tolerance in pancreas (PubMed:36240758). Expressed in microglia, is activated by nociceptor-derived REG3G in response to endotoxins, leading to the inhibition of kynurenine pathway to prevent endotoxic death (PubMed:35263589)
Other Modifications: View all modification sites in dbPTM
Protein Subcellular Localization: Endoplasmic reticulum membrane. Golgi apparatus. Cell membrane. Nucleus
|
|
|
