4.2.1.90: L-rhamnonate dehydratase
This is an abbreviated version!
For detailed information about L-rhamnonate dehydratase, go to the full flat file.
Word Map on EC 4.2.1.90
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4.2.1.90
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stipitis
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azotobacter
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vinelandii
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l-lactaldehyde
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pichia
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nonphosphorylated
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ladhs
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1-dehydrogenase
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l-lactate
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niger
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entner-doudoroff
- 4.2.1.90
- stipitis
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azotobacter
- vinelandii
- l-lactaldehyde
-
pichia
-
nonphosphorylated
-
ladhs
-
1-dehydrogenase
- l-lactate
- niger
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entner-doudoroff
Reaction
Synonyms
dehydratase, L-rhamnonate, LRA3, Lra3p, LraC, More, PICST_50672, RhamD, YfaW
ECTree
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General Information
General Information on EC 4.2.1.90 - L-rhamnonate dehydratase
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malfunction
metabolism
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a double deletion of lraC and lraA in Aspergillus niger results in a strain that exhibits no L-rhamnose dehydrogenase activity and cannot consume or grow on L-rhamnose. Deletion of the clustered genes lraA, lraB or lraC causes a reduction in expression level of the other genes of the L-rhamnose pathway, rhtA is not expressed in the DELTAlraC and DELATrhaR mutants. Strongly reduced expression levels of lraA, lraB, rhaR, rglB, rgxA and rgaeA are observed in the DELTAlraC mutant upon the 2 h transfer to L-rhamnonate compared to the reference strain
malfunction
Aspergillus niger CBS 141257
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a double deletion of lraC and lraA in Aspergillus niger results in a strain that exhibits no L-rhamnose dehydrogenase activity and cannot consume or grow on L-rhamnose. Deletion of the clustered genes lraA, lraB or lraC causes a reduction in expression level of the other genes of the L-rhamnose pathway, rhtA is not expressed in the DELTAlraC and DELATrhaR mutants. Strongly reduced expression levels of lraA, lraB, rhaR, rglB, rgxA and rgaeA are observed in the DELTAlraC mutant upon the 2 h transfer to L-rhamnonate compared to the reference strain
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the enzyme is involved in L-rhamnose catabolism. Eukaryotic L-rhamnose pathway, overview
metabolism
L-rhamnonate dehydratase (LRA3) converts L-rhamnonate to 2-dehydro-3-deoxy-L-rhamnonate (L-KDR), catalyzing the third step of the non-phosphorylative pathway in Schefferomyces stipitis. The inducer of RhaR is beyond L-rhamnonate dehydratase (LraC) and is likely to be the 2-keto-3-L-deoxyrhamnonate
metabolism
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L-rhamnonate dehydratase (LraC) probably converts L-rhamnonate to 2-dehydro-3-deoxy-L-rhamnonate (L-KDR), catalyzing the third step of the non-phosphorylative pathway. The inducer of RhaR is beyond L-rhamnonate dehydratase (LraC) and is likely to be the 2-keto-3-L-deoxyrhamnonate
metabolism
L-rhamnose is oxidised to L-rhamnonate which is then reacting with a dehydratase. The resulting 3,6-dideoxy-L-erythro-hexulosonic acid (2-dehydro-3-deoxy rhamnonate) is subsequently split by and aldolase to pyruvate and L-lactaldehyde
metabolism
Aspergillus niger ATCC 1015 / CBS 113.46 / FGSC A1144 / LSHB Ac4 / NCTC 3858a / NRRL 328 / USDA 3528.7
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L-rhamnose is oxidised to L-rhamnonate which is then reacting with a dehydratase. The resulting 3,6-dideoxy-L-erythro-hexulosonic acid (2-dehydro-3-deoxy rhamnonate) is subsequently split by and aldolase to pyruvate and L-lactaldehyde
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metabolism
Scheffersomyces stipitis ATCC 58785 / CBS 6054 / NBRC 10063 / NRRL Y-11545
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L-rhamnonate dehydratase (LRA3) converts L-rhamnonate to 2-dehydro-3-deoxy-L-rhamnonate (L-KDR), catalyzing the third step of the non-phosphorylative pathway in Schefferomyces stipitis. The inducer of RhaR is beyond L-rhamnonate dehydratase (LraC) and is likely to be the 2-keto-3-L-deoxyrhamnonate
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metabolism
Aspergillus niger CBS 141257
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L-rhamnonate dehydratase (LraC) probably converts L-rhamnonate to 2-dehydro-3-deoxy-L-rhamnonate (L-KDR), catalyzing the third step of the non-phosphorylative pathway. The inducer of RhaR is beyond L-rhamnonate dehydratase (LraC) and is likely to be the 2-keto-3-L-deoxyrhamnonate
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