Enzymes
| UniProtKB help_outline | 4 proteins |
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- Name help_outline N-acetyl-α-neuraminosyl-(2→3)-β-D-galactosyl-(1→3)-[N-acetyl-α-neuraminosyl-(2→6)]-N-acetyl-β-D-glucosaminyl-(1→3)-β-D-galactosyl-(1→4)-β-D-glucosyl-(1↔1ʼ)-N-acyl-sphing-4-enine Identifier CHEBI:88079 Charge -2 Formula C67H111N4O39R SMILEShelp_outline [C@H]1(O[C@@H]([C@H](O)[C@@H]([C@H]1O)O[C@]2(O[C@]([C@@H]([C@H](C2)O)NC(C)=O)([C@@H]([C@H](O)CO)O)[H])C([O-])=O)CO)O[C@@H]3[C@H]([C@H](O[C@@H]4[C@H]([C@H](O[C@@H]5[C@H](O[C@@H](OC[C@@H]([C@@H](/C=C/CCCCCCCCCCCCC)O)NC(=O)*)[C@@H]([C@H]5O)O)CO)O[C@@H]([C@@H]4O)CO)O)O[C@H](CO[C@]6(O[C@]([C@@H]([C@H](C6)O)NC(C)=O)([C@@H]([C@H](O)CO)O)[H])C([O-])=O)[C@H]3O)NC(C)=O 2D coordinates Mol file for the small molecule Search links Involved in 2 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline GDP-β-L-fucose Identifier CHEBI:57273 (Beilstein: 9178112) help_outline Charge -2 Formula C16H23N5O15P2 InChIKeyhelp_outline LQEBEXMHBLQMDB-JGQUBWHWSA-L SMILEShelp_outline C[C@@H]1O[C@H](OP([O-])(=O)OP([O-])(=O)OC[C@H]2O[C@H]([C@H](O)[C@@H]2O)n2cnc3c2nc(N)[nH]c3=O)[C@@H](O)[C@H](O)[C@@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 71 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline N-acetyl-α-neuraminosyl-(2→3)-β-D-galactosyl-(1→3)-α-L-fucosyl-(1→4)-[N-acetyl-α-neuraminosyl-(2→6)-N-acetyl-β-D-glucosaminyl-(1→3)]-β-D-galactosyl-(1→4)-β-D-glucosyl-(1↔1ʼ)-N-acyl-sphing-4-enine Identifier CHEBI:88089 Charge -2 Formula C73H121N4O43R SMILEShelp_outline O([C@H]1[C@H]([C@@H]([C@H](O)[C@@H](O1)C)O)O)[C@H]2[C@@H]([C@H]([C@H](O[C@@H]3[C@H]([C@H](O[C@@H]4[C@H](O[C@@H](OC[C@@H]([C@@H](/C=C/CCCCCCCCCCCCC)O)NC(=O)*)[C@@H]([C@H]4O)O)CO)O[C@@H]([C@@H]3O)CO)O)O[C@@H]2CO[C@]5(O[C@]([C@@H]([C@H](C5)O)NC(C)=O)([C@@H]([C@H](O)CO)O)[H])C([O-])=O)NC(C)=O)O[C@@H]6O[C@@H]([C@H](O)[C@@H]([C@H]6O)O[C@]7(O[C@]([C@@H]([C@H](C7)O)NC(C)=O)([C@@H]([C@H](O)CO)O)[H])C([O-])=O)CO 2D coordinates Mol file for the small molecule Search links Involved in 1 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline GDP Identifier CHEBI:58189 Charge -3 Formula C10H12N5O11P2 InChIKeyhelp_outline QGWNDRXFNXRZMB-UUOKFMHZSA-K SMILEShelp_outline Nc1nc2n(cnc2c(=O)[nH]1)[C@@H]1O[C@H](COP([O-])(=O)OP([O-])([O-])=O)[C@@H](O)[C@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 185 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 9,717 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:47892 | RHEA:47893 | RHEA:47894 | RHEA:47895 | |
|---|---|---|---|---|
| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
| UniProtKB help_outline |
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Publications
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Synthesis of disialyl Lewis a (Le(a)) structure in colon cancer cell lines by a sialyltransferase, ST6GalNAc VI, responsible for the synthesis of alpha-series gangliosides.
Tsuchida A., Okajima T., Furukawa K., Ando T., Ishida H., Yoshida A., Nakamura Y., Kannagi R., Kiso M., Furukawa K.
Biosynthesis of disialyl Lewis a (Lea) was analyzed using previously cloned ST6GalNAc V and ST6GalNAc VI, which were responsible for the synthesis of alpha-series gangliosides. Among lactotetraosylceramide (Lc4), neolactotetraosylceramide, and their sialyl forms, only sialyl Lc4 was sialylated wit ... >> More
Biosynthesis of disialyl Lewis a (Lea) was analyzed using previously cloned ST6GalNAc V and ST6GalNAc VI, which were responsible for the synthesis of alpha-series gangliosides. Among lactotetraosylceramide (Lc4), neolactotetraosylceramide, and their sialyl forms, only sialyl Lc4 was sialylated with ST6GalNAc V and ST6GalNAc VI. The products were confirmed to be disialyl Lea in TLC-immunostaining. Compared with the original substrate GM1b, the synthetic rates of disialyl Lea were 22 and 38% with ST6GalNAc V and ST6GalNAc VI, respectively. Since sialyl Lea could not be converted to disialyl Lea, disialyl Lea was produced only from disialyl Lc4. Therefore, it appears that ST6GalNAc V/VI and fucosyltransferase III (FUT-3) compete for sialyl Lc4, their common substrate. The results of either one transfection or co-transfection of two genes into COS1 cells revealed that both ST6GalNAc VI and FUT-3 contributed in the synthesis of disialyl Lea but partly compete with each other. Many colon cancer cell lines expressed the ST6GalNAc VI gene more or less, and some of them actually expressed disialyl Lea. None of them expressed ST6GalNAc V. These results suggested the novel substrate specificity of ST6GalNAc VI, which is responsible for the synthesis of disialyl Lea but not for alpha-series gangliosides in human colon tissues. << Less
J. Biol. Chem. 278:22787-22794(2003) [PubMed] [EuropePMC]
This publication is cited by 4 other entries.