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Information on EC 1.1.1.390 - sulfoquinovose 1-dehydrogenase
for references in articles please use BRENDA:EC1.1.1.390
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EC Tree 1 Oxidoreductases
1.1 Acting on the CH-OH group of donors
1.1.1 With NAD+ or NADP+ as acceptor
1.1.1.390 sulfoquinovose 1-dehydrogenase
IUBMB Comments
The enzyme, characterized from the bacterium Pseudomonas putida SQ1, participates in a sulfoquinovose degradation pathway. Activity with NADP+ is only 4% of that with NAD+.
The expected taxonomic range for this enzyme is: Pseudomonas putida
showSynonyms
sq dehydrogenase, more
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SYNONYM 
ORGANISM
UNIPROT
COMMENTARY 
LITERATURE
PpSQ1_00405
SQ dehydrogenase
SQ-dehydrogenase
SQD
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REACTION
REACTION DIAGRAM
COMMENTARY
ORGANISM
UNIPROT
LITERATURE
sulfoquinovose + NAD+ = 6-deoxy-6-sulfo-D-glucono-1,5-lactone + NADH + H+
-
-
-
-
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PATHWAY SOURCE
PATHWAYS
MetaCyc
sulfoquinovose degradation II
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SYSTEMATIC NAME
IUBMB Comments
6-deoxy-6-sulfo-D-glucopyranose:NAD+ 1-oxidoreductase
The enzyme, characterized from the bacterium Pseudomonas putida SQ1, participates in a sulfoquinovose degradation pathway. Activity with NADP+ is only 4% of that with NAD+.
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SUBSTRATE
PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
LITERATURE
COMMENTARY
Reversibility
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
sulfoquinovose + NAD+
6-deoxy-6-sulfo-D-glucono-1,5-lactone + NADH + H+
-
Substrates: sulfoquinovose is 6-deoxy-6-sulfoglucose
Products: -
Products: -
?
sulfoquinovose + NAD+
6-deoxy-6-sulfo-D-glucono-1,5-lactone + NADH + H+
Substrates: -
Products: -
Products: -
r
sulfoquinovose + NAD+
6-deoxy-6-sulfo-D-glucono-1,5-lactone + NADH + H+
-
Substrates: sulfoquinovose is 6-deoxy-6-sulfoglucose
Products: -
Products: -
?
sulfoquinovose + NAD+
6-deoxy-6-sulfo-D-glucono-1,5-lactone + NADH + H+
Substrates: -
Products: -
Products: -
r
sulfoquinovose + NADP+
6-deoxy-6-sulfo-D-glucono-1,5-lactone + NADH + H+
-
Substrates: when NADP+ is used as an electron acceptor, the enzyme activity is 4% of the activity with NAD+
Products: -
Products: -
?
sulfoquinovose + NADP+
6-deoxy-6-sulfo-D-glucono-1,5-lactone + NADH + H+
-
Substrates: when NADP+ is used as an electron acceptor, the enzyme activity is 4% of the activity with NAD+
Products: -
Products: -
?
additional information
?
-
-
Substrates: the enzyme shows no activity with D-glucose-6-phosphate
Products: -
Products: -
?
additional information
?
-
-
Substrates: the enzyme shows no activity with D-glucose-6-phosphate
Products: -
Products: -
?
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NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
LITERATURE
COMMENTARY
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
sulfoquinovose + NAD+
6-deoxy-6-sulfo-D-glucono-1,5-lactone + NADH + H+
-
Substrates: sulfoquinovose is 6-deoxy-6-sulfoglucose
Products: -
Products: -
?
sulfoquinovose + NAD+
6-deoxy-6-sulfo-D-glucono-1,5-lactone + NADH + H+
Substrates: -
Products: -
Products: -
r
sulfoquinovose + NAD+
6-deoxy-6-sulfo-D-glucono-1,5-lactone + NADH + H+
-
Substrates: sulfoquinovose is 6-deoxy-6-sulfoglucose
Products: -
Products: -
?
sulfoquinovose + NAD+
6-deoxy-6-sulfo-D-glucono-1,5-lactone + NADH + H+
Substrates: -
Products: -
Products: -
r
additional information
?
-
-
Substrates: the enzyme shows no activity with D-glucose-6-phosphate
Products: -
Products: -
?
additional information
?
-
-
Substrates: the enzyme shows no activity with D-glucose-6-phosphate
Products: -
Products: -
?
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COFACTOR
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
NADP+
-
when NADP+ is used as an electron acceptor, the enzyme activity is 4% of the activity with NAD+
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KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
0.5
sulfoquinovose
-
with NAD+ as cosubstrate, in 50 mM Tris-HCl (pH 7.5), temperature not specified in the publication
2.4
sulfoquinovose
-
with NADP+ as cosubstrate, in 50 mM Tris-HCl (pH 7.5), temperature not specified in the publication
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TURNOVER NUMBER [1/s]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
1.4
sulfoquinovose
-
with NADP+ as cosubstrate, in 50 mM Tris-HCl (pH 7.5), temperature not specified in the publication
33.8
sulfoquinovose
-
with NAD+ as cosubstrate, in 50 mM Tris-HCl (pH 7.5), temperature not specified in the publication
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kcat/KM VALUE [1/mMs-1]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
0.6
sulfoquinovose
-
with NADP+ as cosubstrate, in 50 mM Tris-HCl (pH 7.5), temperature not specified in the publication
67.6
sulfoquinovose
-
with NAD+ as cosubstrate, in 50 mM Tris-HCl (pH 7.5), temperature not specified in the publication
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ORGANISM
COMMENTARY
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
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SOURCE TISSUE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
SOURCE
additional information
additional information
strain SQ1 shows the ability to utilize the plant sugar sulfoquinovose (6-deoxy-6-sulfoglucose) for growth
brenda
additional information
-
strain SQ1 shows the ability to utilize the plant sugar sulfoquinovose (6-deoxy-6-sulfoglucose) for growth
-
brenda
Highest Expressing Human Cell Lines
Cell Line LinksPlease wait a moment until the data is sorted. This message will disappear when the data is sorted.
GENERAL INFORMATION
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
metabolism
physiological function
metabolism
the enzyme is involved in the sulfoquinovose, SQ, degradation pathway, that is distinct from the entner-Doudoroff pathway and the pathway in Escherichia coli, the pathway operative in Puitida putida strain SQ1 represents a second, yet unknown bacterial degradation pathway for SQ, overview
metabolism
-
the enzyme is involved in the sulfoquinovose, SQ, degradation pathway, that is distinct from the entner-Doudoroff pathway and the pathway in Escherichia coli, the pathway operative in Puitida putida strain SQ1 represents a second, yet unknown bacterial degradation pathway for SQ, overview
-
physiological function
the enzyme is involved in the degradation of sugar sulfoquinovose, SQ, the polar headgroup of the plant sulfolipid sulfoquinovosyl diacylglycerol, which is present in the photosynthetic membranes of all higher plants, mosses, ferns and algae and most photosynthetic bacteria
physiological function
-
the enzyme is involved in the degradation of sugar sulfoquinovose, SQ, the polar headgroup of the plant sulfolipid sulfoquinovosyl diacylglycerol, which is present in the photosynthetic membranes of all higher plants, mosses, ferns and algae and most photosynthetic bacteria
-
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UNIPROT
ENTRY NAME
ORGANISM
NO. OF AA
NO. OF TRANSM. HELICES
MOLECULAR WEIGHT[Da]
SOURCE
SEQUENCE
LOCALIZATION PREDICTION
The reliability class of the localization prediction ranges from 1 (very reliable) to 5 (not reliable).
The reliability class of the localization prediction ranges from 1 (very reliable) to 5 (not reliable). Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
PDB
SCOP
CATH
UNIPROT
ORGANISM
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PURIFICATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
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CLONED (Commentary)
ORGANISM
UNIPROT
LITERATURE
genomic analysis, DNA and amino acid sequence determination and analysis
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REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Felux A.-K, F.A.; Spiteller D, S.D.; Klebensberger J, K.J.; Schleheck D, S.D.
Entner-Doudoroff pathway for sulfoquinovose degradation in Pseudomonas putida SQ1
Proc. Natl. Acad. Sci. USA
112
E4298-E4305
2015
Pseudomonas putida, Pseudomonas putida SQ1
brenda
Felux A.-K, F.A.; Franchini P, F.P.; Schleheck D, S.D.
Permanent draft genome sequence of sulfoquinovose-degrading Pseudomonas putida strain SQ1
Stand. Genomic Sci.
10
42-47
2015
Pseudomonas putida (P0DOV5), Pseudomonas putida SQ1 (P0DOV5)
brenda
EXTERNAL LINKS (specific for EC-Number 1.1.1.390)
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Release 2026.1 (March 2026)
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