Enzymes
UniProtKB help_outline | 1 proteins |
Enzyme class help_outline |
|
Reaction participants Show >> << Hide
- Name help_outline aclacinomycin T Identifier CHEBI:77979 Charge 0 Formula C30H35NO10 InChIKeyhelp_outline LJZPVWKMAYDYAS-QKKPTTNWSA-N SMILEShelp_outline CC[C@@]1(O)C[C@H](O[C@H]2C[C@@H]([C@H](O)[C@H](C)O2)[NH+](C)C)c2c([O-])c3C(=O)c4c(O)cccc4C(=O)c3cc2[C@H]1C(=O)OC 2D coordinates Mol file for the small molecule Search links Involved in 3 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline dTDP-2-deoxy-β-L-fucose Identifier CHEBI:78302 Charge -2 Formula C16H24N2O14P2 InChIKeyhelp_outline GLUZBIYLBPDBPE-QUTCXQLSSA-L SMILEShelp_outline C[C@@H]1O[C@@H](C[C@H](O)[C@@H]1O)OP([O-])(=O)OP([O-])(=O)OC[C@H]1O[C@H](C[C@@H]1O)n1cc(C)c(=O)[nH]c1=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 aclacinomycin S Identifier CHEBI:78303 Charge 0 Formula C36H45NO13 InChIKeyhelp_outline DNZPQXXGAMXDHH-FCNQEGBTSA-N SMILEShelp_outline CC[C@@]1(O)C[C@H](O[C@H]2C[C@@H]([C@H](O[C@H]3C[C@H](O)[C@H](O)[C@H](C)O3)[C@H](C)O2)[NH+](C)C)c2c([O-])c3C(=O)c4c(O)cccc4C(=O)c3cc2[C@H]1C(=O)OC 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 dTDP Identifier CHEBI:58369 Charge -3 Formula C10H13N2O11P2 InChIKeyhelp_outline UJLXYODCHAELLY-XLPZGREQSA-K SMILEShelp_outline Cc1cn([C@H]2C[C@H](O)[C@@H](COP([O-])(=O)OP([O-])([O-])=O)O2)c(=O)[nH]c1=O 2D coordinates Mol file for the small molecule Search links Involved in 31 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 9,176 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
RHEA:41568 | RHEA:41569 | RHEA:41570 | RHEA:41571 | |
---|---|---|---|---|
Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
UniProtKB help_outline |
|
|||
EC numbers help_outline | ||||
KEGG help_outline | ||||
MetaCyc help_outline |
Publications
-
AknK is an L-2-deoxyfucosyltransferase in the biosynthesis of the anthracycline aclacinomycin A.
Lu W., Leimkuhler C., Oberthuer M., Kahne D., Walsh C.T.
The antitumor drug aclacinomycin A is a representative member of the anthracycline subgroup that contains a C(7)-O-trisaccharide chain composed of L-2-deoxysugars. The sugar portion of the molecule, which greatly affects its biological activity, is assembled by dedicated glycosyltransferases; howe ... >> More
The antitumor drug aclacinomycin A is a representative member of the anthracycline subgroup that contains a C(7)-O-trisaccharide chain composed of L-2-deoxysugars. The sugar portion of the molecule, which greatly affects its biological activity, is assembled by dedicated glycosyltransferases; however, these enzymes have not been well-studied. Here we report the heterologous expression and purification of one of these enzymes, AknK, as well as the preparation of dTDP-L-2-deoxysugar donors, dTDP-L-2-deoxyfucose and dTDP-L-daunosamine, and the monoglycosyl aglycone, rhodosaminyl aklavinone. Our experiments show that AknK catalyzes the addition of the second sugar to the chain, using dTDP-L-2-deoxyfucose and rhodosaminyl aklavinone, to create the L-2-deoxyfucosyl-L-rhodosaminyl aklavinone. AknK also accepts an alternate dTDP-L-sugar, dTDP-L-daunosamine, and other monoglycosylated anthracyclines, including daunomycin, adriamycin, and idarubicin, to build alternate disaccharides on variant anthracycline backbones. Remarkably, AknK also catalyzes a tandem addition of a second L-2-deoxyfucosyl moiety, albeit with reduced activity, to the natural disaccharide chain to produce L-deoxyfucosyl-L-deoxyfucosyl-L-rhodosaminyl aklavinone, a variant of the natural aclacinomycin A. These results demonstrate that AknK may be a useful enzyme for the chemoenzymatic synthesis of anthracycline variants. << Less
Biochemistry 43:4548-4558(2004) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.