Enzymes
| UniProtKB help_outline | 384 proteins |
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- Name help_outline an N-acetyl-β-D-glucosaminyl derivative Identifier CHEBI:61631 Charge 0 Formula C8H14NO6R SMILEShelp_outline O1[C@@H]([C@H]([C@@H]([C@H]([C@@H]1O*)NC(=O)C)O)O)CO 2D coordinates Mol file for the small molecule Search links Involved in 4 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline UDP-α-D-galactose Identifier CHEBI:66914 Charge -2 Formula C15H22N2O17P2 InChIKeyhelp_outline HSCJRCZFDFQWRP-ABVWGUQPSA-L SMILEShelp_outline OC[C@H]1O[C@H](OP([O-])(=O)OP([O-])(=O)OC[C@H]2O[C@H]([C@H](O)[C@@H]2O)n2ccc(=O)[nH]c2=O)[C@H](O)[C@@H](O)[C@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 105 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline a β-D-galactosyl-(1→3)-N-acetyl-β-D-glucosaminyl derivative Identifier CHEBI:133506 Charge 0 Formula C14H24NO11R SMILEShelp_outline [C@H]1(O[C@@H]([C@H](O)[C@@H]([C@H]1O)O)CO)O[C@@H]2[C@H]([C@H](O*)O[C@H](CO)[C@H]2O)NC(C)=O 2D coordinates Mol file for the small molecule Search links Involved in 4 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline UDP Identifier CHEBI:58223 Charge -3 Formula C9H11N2O12P2 InChIKeyhelp_outline XCCTYIAWTASOJW-XVFCMESISA-K SMILEShelp_outline O[C@@H]1[C@@H](COP([O-])(=O)OP([O-])([O-])=O)O[C@H]([C@@H]1O)n1ccc(=O)[nH]c1=O 2D coordinates Mol file for the small molecule Search links Involved in 577 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H+ Identifier CHEBI:15378 Charge 1 Formula H InChIKeyhelp_outline GPRLSGONYQIRFK-UHFFFAOYSA-N SMILEShelp_outline [H+] 2D coordinates Mol file for the small molecule Search links Involved in 9,521 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:53432 | RHEA:53433 | RHEA:53434 | RHEA:53435 | |
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| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
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| MetaCyc help_outline |
Related reactions help_outline
Specific form(s) of this reaction
Publications
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Differential activities of glycolipid glycosyltransferases in Tay-Sachs disease: studies in cultured cells from cerebrum.
Basu M., Presper K.A., Basu S., Hoffman L.M., Brooks S.E.
Four different glycolipid:glycosyltransferase activities involved in the biosynthesis in vitro of gangliosides and blood group-related glycosphingolipids have been tested in a simian virus 40-transformed glial cell culture derived from the cerebrum of a fetus with Tay-Sachs disease (TSD). The TSD ... >> More
Four different glycolipid:glycosyltransferase activities involved in the biosynthesis in vitro of gangliosides and blood group-related glycosphingolipids have been tested in a simian virus 40-transformed glial cell culture derived from the cerebrum of a fetus with Tay-Sachs disease (TSD). The TSD cultured brain cells contained little activity of either UDP-Gal:GM2(beta 1-3)galactosyltransferase (GalT-3; EC 2.4.1.62), which catalyzes the formation of GM1a from GM2 (tay-Sachs) ganglioside, or GDP-Fuc:nLcOse4Cer (alpha 1-2)fucosyltransferase (FucT-2; EC 2.4.1.89), which catalyzes the formation of H1 glycolipid from nLcOse4Cer. These cells contained a potent inhibitor of the second reaction (catalyzed by a Golgi-rich membrane fraction from bovine spleen), whereas no inhibition of the first reaction (catalyzed by a membrane fraction from 14-day-old embryonic chicken brain) was observed. The activity of UDP-Gal:LcOse3Cer(beta 1-4)galactosyltransferase (GalT-4; EC 2.4.1.86) was 30-to 80-fold higher than the activity of GalT-3. The presence of CMP-AcNeu:nLcOse4Cer sialyltransferase activity and the absence of either GalT-3 or FucT-2 suggested a probable pathway for the synthesis of sialylneolactotetraosylceramide [GM1b(GlcNAc)] in addition to a specific blockage of GM1a ganglioside synthesis from GM2 in these TSD transformed cells. << Less
Proc Natl Acad Sci U S A 76:4270-4274(1979) [PubMed] [EuropePMC]
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A family of human beta3-galactosyltransferases. Characterization of four members of a UDP-galactose:beta-N-acetyl-glucosamine/beta-N-acetyl-galactosamine beta-1,3-galactosyltransferase family.
Amado M., Almeida R., Carneiro F., Levery S.B., Holmes E.H., Nomoto M., Hollingsworth M.A., Hassan H., Schwientek T., Nielsen P.A., Bennett E.P., Clausen H.
BLAST analysis of expressed sequence tags (ESTs) using the coding sequence of a human UDP-galactose:beta-N-acetyl-glucosamine beta-1, 3-galactosyltransferase, designated beta3Gal-T1, revealed no ESTs with identical sequences but a large number with similarity. Three different sets of overlapping E ... >> More
BLAST analysis of expressed sequence tags (ESTs) using the coding sequence of a human UDP-galactose:beta-N-acetyl-glucosamine beta-1, 3-galactosyltransferase, designated beta3Gal-T1, revealed no ESTs with identical sequences but a large number with similarity. Three different sets of overlapping ESTs with sequence similarities to beta3Gal-T1 were compiled, and complete coding regions of these genes were obtained. Expression of two of these genes in the Baculo virus system showed that one represented a UDP-galactose:beta-N-acetyl-glucosamine beta-1, 3-galactosyltransferase (beta3Gal-T2) with similar kinetic properties as beta3Gal-T1. Another gene represented a UDP-galactose:beta-N-acetyl-galactosamine beta-1, 3-galactosyltransferase (beta3Gal-T4) involved in GM1/GD1 ganglioside synthesis, and this gene was highly similar to a recently reported rat GD1 synthase (Miyazaki, H., Fukumoto, S., Okada, M., Hasegawa, T., and Furukawa, K. (1997) J. Biol. Chem. 272, 24794-24799). Northern analysis of mRNA from human organs with the four homologous cDNA revealed different expression patterns. beta3Gal-T1 mRNA was expressed in brain, beta3Gal-T2 was expressed in brain and heart, and beta3Gal-T3 and -T4 were more widely expressed. The coding regions for each of the four genes were contained in single exons. beta3Gal-T2, -T3, and -T4 were localized to 1q31, 3q25, and 6p21.3, respectively, by EST mapping. The results demonstrate the existence of a family of homologous beta3-galactosyltransferase genes. << Less
J. Biol. Chem. 273:12770-12778(1998) [PubMed] [EuropePMC]
This publication is cited by 6 other entries.
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Differential expression of beta1,3galactosyltransferases in human colon cells derived from adenocarcinomas or normal mucosa.
Bardoni A., Valli M., Trinchera M.
Two beta1,3galactosyltransferases are detected in human colon cells: one corresponds to beta3GalT1, the other (beta3GalTx) is found to be different from any cloned beta3GalT since in vitro it utilizes GlcNAc very efficiently under specific reaction conditions. Expression of beta3GalT1 transcript i ... >> More
Two beta1,3galactosyltransferases are detected in human colon cells: one corresponds to beta3GalT1, the other (beta3GalTx) is found to be different from any cloned beta3GalT since in vitro it utilizes GlcNAc very efficiently under specific reaction conditions. Expression of beta3GalT1 transcript is high in normal colon mucosa and control neuroectodermal cells, which do not express sialyl-Lewis a antigen, and low in colon adenocarcinoma cells, as assessed by competitive RT-PCR. beta3GalTx activity is high in adenocarcinoma cells expressing sialyl-Lewis a and undetectable in all other cells, suggesting differential involvement and opposite regulation of such enzymes during carcinogenesis. << Less
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Enzymatic synthesis of a tetraglycosylceramide by a galactosyltransferase from rabbit bone marrow.
Basu M., Basu S.
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Identification and characterization of large galactosyltransferase gene families: galactosyltransferases for all functions.
Amado M., Almeida R., Schwientek T., Clausen H.
Enzymatic glycosylation of proteins and lipids is an abundant and important biological process. A great diversity of oligosaccharide structures and types of glycoconjugates is found in nature, and these are synthesized by a large number of glycosyltransferases. Glycosyltransferases have high donor ... >> More
Enzymatic glycosylation of proteins and lipids is an abundant and important biological process. A great diversity of oligosaccharide structures and types of glycoconjugates is found in nature, and these are synthesized by a large number of glycosyltransferases. Glycosyltransferases have high donor and acceptor substrate specificities and are in general limited to catalysis of one unique glycosidic linkage. Emerging evidence indicates that formation of many glycosidic linkages is covered by large homologous glycosyltransferase gene families, and that the existence of multiple enzyme isoforms provides a degree of redundancy as well as a higher level of regulation of the glycoforms synthesized. Here, we discuss recent cloning strategies enabling the identification of these large glycosyltransferase gene families and exemplify the implication this has for our understanding of regulation of glycosylation by discussing two galactosyltransferase gene families. << Less
Biochim. Biophys. Acta 1473:35-53(1999) [PubMed] [EuropePMC]