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- Name help_outline D-xylono-1,4-lactone Identifier CHEBI:16392 (Beilstein: 82061; CAS: 15384-37-9) help_outline Charge 0 Formula C5H8O5 InChIKeyhelp_outline CUOKHACJLGPRHD-FLRLBIABSA-N SMILEShelp_outline [C@@H]1(OC([C@@H]([C@H]1O)O)=O)CO 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 H2O Identifier CHEBI:15377 (Beilstein: 3587155; CAS: 7732-18-5) help_outline Charge 0 Formula H2O InChIKeyhelp_outline XLYOFNOQVPJJNP-UHFFFAOYSA-N SMILEShelp_outline [H]O[H] 2D coordinates Mol file for the small molecule Search links Involved in 6,204 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline D-xylonate Identifier CHEBI:17746 Charge -1 Formula C5H9O6 InChIKeyhelp_outline QXKAIJAYHKCRRA-FLRLBIABSA-M SMILEShelp_outline OC[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O 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 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 9,431 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:18341 | RHEA:18342 | RHEA:18343 | RHEA:18344 | |
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| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
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Publications
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Characterization of a pentonolactonase involved in D-xylose and L-arabinose catabolism in the haloarchaeon Haloferax volcanii.
Sutter J.M., Johnsen U., Schoenheit P.
Haloferax volcanii degrades the pentoses D-xylose and L-arabinose via an oxidative pathway to α-ketoglutarate as an intermediate. The initial dehydrogenases of the pathway, D-xylose dehydrogenase (XDH) and L-arabinose dehydrogenase (L-AraDH) catalyze the NADP+ dependent D-xylose and L-arabinose ox ... >> More
Haloferax volcanii degrades the pentoses D-xylose and L-arabinose via an oxidative pathway to α-ketoglutarate as an intermediate. The initial dehydrogenases of the pathway, D-xylose dehydrogenase (XDH) and L-arabinose dehydrogenase (L-AraDH) catalyze the NADP+ dependent D-xylose and L-arabinose oxidation. It is shown here that the pentoses are oxidized to the corresponding lactones, D-xylono-γ-lactone and L-arabino-γ-lactone, rather than to the respective sugar acids. A putative lactonase gene, xacC, located in genomic vicinity of XDH and L-AraDH, was found to be transcriptionally upregulated by both D-xylose and L-arabinose mediated by the pentose-specific regulator XacR. The recombinant lactonase catalyzed the hydrolysis of D-xylono-γ-lactone and L-arabino-γ-lactone. This is the first report of a functional lactonase involved in sugar catabolism in the domain of archaea. << Less
FEMS Microbiol. Lett. 364:0-0(2017) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.
Comments
Published in: Buchert, J. and Viikari, L. The role of xylonolactone in xylonic acid production by