NAGPA | |||||||||||||||||||||||||||||||||||||||||||||||||||
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Identifiers | |||||||||||||||||||||||||||||||||||||||||||||||||||
Aliases | NAGPA , Nagpa, AI596180, UCE, APAA, N-acetylglucosamine-1-phosphodiester alpha-N-acetylglucosaminidase | ||||||||||||||||||||||||||||||||||||||||||||||||||
External IDs | OMIM: 607985 MGI: 1351598 HomoloGene: 8466 GeneCards: NAGPA | ||||||||||||||||||||||||||||||||||||||||||||||||||
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Wikidata | |||||||||||||||||||||||||||||||||||||||||||||||||||
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N-acetylglucosamine-1-phosphodiester alpha-N-acetylglucosaminidase is an enzyme that in humans is encoded by the NAGPA gene. [5] [6] [7]
Hydrolases are transported to lysosomes after binding to mannose 6-phosphate receptors in the trans-Golgi network. This gene encodes the enzyme that catalyzes the second step in the formation of the mannose 6-phosphate recognition marker on lysosomal hydrolases. Commonly known as 'uncovering enzyme' or UCE, this enzyme removes N-acetyl-D-glucosamine (GlcNAc) residues from GlcNAc-alpha-P-mannose moieties and thereby produces the recognition marker. This reaction most likely occurs in the trans-Golgi network. This enzyme functions as a homotetramer of two disulfide-linked homodimers. In addition to having an N-terminal signal peptide, the protein's C-terminus contains multiple signals for trafficking it between lysosomes, the plasma membrane, and trans-Golgi network. [7]
To date, the only disorder in humans associated with this gene is Persistent Neurodevelopmental Stuttering (PNdS). [8]
Insulin-like growth factor 2 receptor (IGF2R), also called the cation-independent mannose-6-phosphate receptor (CI-MPR) is a protein that in humans is encoded by the IGF2R gene. IGF2R is a multifunctional protein receptor that binds insulin-like growth factor 2 (IGF2) at the cell surface and mannose-6-phosphate (M6P)-tagged proteins in the trans-Golgi network.
The mannose 6-phosphate receptors (MPRs) are transmembrane glycoproteins that target enzymes to lysosomes in vertebrates.
The enzyme N-acetylglucosamine-1-phosphodiester α-N-acetylglucosaminidase (EC 3.1.4.45) catalyzes the reaction
AP-1 complex subunit beta-1 is a protein that in humans is encoded by the AP1B1 gene.
Mannose-6-phosphate receptor binding protein 1 (M6PRBP1) is a protein which in humans is encoded by the M6PRBP1 gene. Its gene product, as well as the gene itself, is commonly known as TIP47.
Galactoside 2-alpha-L-fucosyltransferase 2 is an enzyme that in humans is encoded by the FUT2 gene. It affects the secretor status of ABO antigens.
Lipid phosphate phosphohydrolase 1 also known as phosphatidic acid phosphatase 2a is an enzyme that in humans is encoded by the PPAP2A gene.
Beta-1,4-mannosyl-glycoprotein 4-beta-N-acetylglucosaminyltransferase is an enzyme that in humans is encoded by the MGAT3 gene.
Phosphomannomutase 1 is an enzyme that in humans is encoded by the PMM1 gene.
CMP-N-acetylneuraminate-poly-alpha-2,8-sialyltransferase is an enzyme that in humans is encoded by the ST8SIA4 gene.
Carbohydrate sulfotransferase 2 is an enzyme that in humans is encoded by the CHST2 gene.
Carbohydrate sulfotransferase 4 is an enzyme that in humans is encoded by the CHST4 gene.
Polypeptide N-acetylgalactosaminyltransferase 2 is an enzyme that in humans is encoded by the GALNT2 gene.
Phosphatidylinositol-4-phosphate 5-kinase type-1 alpha is an enzyme that in humans is encoded by the PIP5K1A gene.
Diacylglycerol kinase delta is an enzyme that in humans is encoded by the DGKD gene.
GDP-mannose 4,6 dehydratase is an enzyme that in humans is encoded by the GMDS gene.
Exostosin-like 2 is a protein that in humans is encoded by the EXTL2 gene. EXTL2 Glycosyltransferase is required for the biosynthesis of heparan-sulfate and responsible for the alternating addition of beta-1-4-linked glucuronic acid (GlcA) and alpha-1-4-linked N-acetylglucosamine (GlcNAc) units to nascent heparan sulfate chains.
D-glucuronyl C5-epimerase is an enzyme that in humans is encoded by the GLCE gene.
In the fields of biochemistry and cell biology, the cation-dependent mannose-6-phosphate receptor (CD-MPR) also known as the 46 kDa mannose 6-phosphate receptor is a protein that in humans is encoded by the M6PR gene.
Rosalind Hauk Kornfeld (1935–2007) was a scientist at Washington University in St. Louis known for her research determining the structure and formation of oligosaccharides. The Society of Glycobiology annually awards a lifetime achievement award in her honor.