Enzymes
| UniProtKB help_outline | 1 proteins |
| Enzyme class help_outline |
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Reaction participants Show >> << Hide
- Name help_outline 2-dehydro-3,6-dideoxy-6-sulfo-D-gluconate Identifier CHEBI:88094 Charge -2 Formula C6H8O8S InChIKeyhelp_outline COLOZALSGXIPJV-WVZVXSGGSA-L SMILEShelp_outline C(C(C[C@@H]([C@@H](CS([O-])(=O)=O)O)O)=O)([O-])=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 (2S)-3-sulfolactaldehyde Identifier CHEBI:90109 Charge -1 Formula C3H5O5S InChIKeyhelp_outline GVEIZEMJOBQMCQ-VKHMYHEASA-M SMILEShelp_outline [O-]S(C[C@H](C(=O)[H])O)(=O)=O 2D coordinates Mol file for the small molecule Search links Involved in 7 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline pyruvate Identifier CHEBI:15361 (CAS: 57-60-3) help_outline Charge -1 Formula C3H3O3 InChIKeyhelp_outline LCTONWCANYUPML-UHFFFAOYSA-M SMILEShelp_outline CC(=O)C([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 215 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:47924 | RHEA:47925 | RHEA:47926 | RHEA:47927 | |
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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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Entner-Doudoroff pathway for sulfoquinovose degradation in Pseudomonas putida SQ1.
Felux A.K., Spiteller D., Klebensberger J., Schleheck D.
Sulfoquinovose (SQ; 6-deoxy-6-sulfoglucose) is the polar head group of the plant sulfolipid SQ-diacylglycerol, and SQ comprises a major proportion of the organosulfur in nature, where it is degraded by bacteria. A first degradation pathway for SQ has been demonstrated recently, a "sulfoglycolytic" ... >> More
Sulfoquinovose (SQ; 6-deoxy-6-sulfoglucose) is the polar head group of the plant sulfolipid SQ-diacylglycerol, and SQ comprises a major proportion of the organosulfur in nature, where it is degraded by bacteria. A first degradation pathway for SQ has been demonstrated recently, a "sulfoglycolytic" pathway, in addition to the classical glycolytic (Embden-Meyerhof) pathway in Escherichia coli K-12; half of the carbon of SQ is abstracted as dihydroxyacetonephosphate (DHAP) and used for growth, whereas a C3-organosulfonate, 2,3-dihydroxypropane sulfonate (DHPS), is excreted. The environmental isolate Pseudomonas putida SQ1 is also able to use SQ for growth, and excretes a different C3-organosulfonate, 3-sulfolactate (SL). In this study, we revealed the catabolic pathway for SQ in P. putida SQ1 through differential proteomics and transcriptional analyses, by in vitro reconstitution of the complete pathway by five heterologously produced enzymes, and by identification of all four organosulfonate intermediates. The pathway follows a reaction sequence analogous to the Entner-Doudoroff pathway for glucose-6-phosphate: It involves an NAD(+)-dependent SQ dehydrogenase, 6-deoxy-6-sulfogluconolactone (SGL) lactonase, 6-deoxy-6-sulfogluconate (SG) dehydratase, and 2-keto-3,6-dideoxy-6-sulfogluconate (KDSG) aldolase. The aldolase reaction yields pyruvate, which supports growth of P. putida, and 3-sulfolactaldehyde (SLA), which is oxidized to SL by an NAD(P)(+)-dependent SLA dehydrogenase. All five enzymes are encoded in a single gene cluster that includes, for example, genes for transport and regulation. Homologous gene clusters were found in genomes of other P. putida strains, in other gamma-Proteobacteria, and in beta- and alpha-Proteobacteria, for example, in genomes of Enterobacteria, Vibrio, and Halomonas species, and in typical soil bacteria, such as Burkholderia, Herbaspirillum, and Rhizobium. << Less
Proc. Natl. Acad. Sci. U.S.A. 112:E4298-E4305(2015) [PubMed] [EuropePMC]
This publication is cited by 5 other entries.