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2-sulfoacetaldehyde + NADH + H+
isethionate + NAD+
2-sulfoacetaldehyde + NADPH + H+
isethionate + NADP+
3-hydroxypropane-1-sulfonate + NAD+
? + NADH + H+
3-hydroxypropionate + NAD+
? + NADH + H+
3-hydroxypropionic acid + NAD+
? + NADH + H+
moderate to low activity
-
-
?
isethionate + NAD+
2-sulfoacetaldehyde + NADH + H+
isethionate + NADP+
2-sulfoacetaldehyde + NADPH + H+
-
-
-
r
additional information
?
-
2-sulfoacetaldehyde + NADH + H+

isethionate + NAD+
-
-
-
r
2-sulfoacetaldehyde + NADH + H+
isethionate + NAD+
the reduction reaction direction is preferred by the enzyme
-
-
r
2-sulfoacetaldehyde + NADH + H+
isethionate + NAD+
-
-
-
r
2-sulfoacetaldehyde + NADH + H+
isethionate + NAD+
the reduction reaction direction is preferred by the enzyme
-
-
r
2-sulfoacetaldehyde + NADH + H+
isethionate + NAD+
-
-
-
?
2-sulfoacetaldehyde + NADH + H+
isethionate + NAD+
-
-
-
r
2-sulfoacetaldehyde + NADH + H+
isethionate + NAD+
-
-
-
?
2-sulfoacetaldehyde + NADH + H+
isethionate + NAD+
-
-
-
r
2-sulfoacetaldehyde + NADH + H+
isethionate + NAD+
-
-
-
-
r
2-sulfoacetaldehyde + NADPH + H+

isethionate + NADP+
-
-
-
r
2-sulfoacetaldehyde + NADPH + H+
isethionate + NADP+
-
-
-
r
3-hydroxypropane-1-sulfonate + NAD+

? + NADH + H+
-
-
-
?
3-hydroxypropane-1-sulfonate + NAD+
? + NADH + H+
low activity
-
-
?
3-hydroxypropane-1-sulfonate + NAD+
? + NADH + H+
low activity
-
-
?
3-hydroxypropane-1-sulfonate + NAD+
? + NADH + H+
-
-
-
?
3-hydroxypropionate + NAD+

? + NADH + H+
-
-
-
?
3-hydroxypropionate + NAD+
? + NADH + H+
-
-
-
?
isethionate + NAD+

2-sulfoacetaldehyde + NADH + H+
-
-
-
r
isethionate + NAD+
2-sulfoacetaldehyde + NADH + H+
-
-
-
r
isethionate + NAD+
2-sulfoacetaldehyde + NADH + H+
-
-
-
-
r
additional information

?
-
-
substrate specificity, no activity with ethanol, ethylene glycol, and ethanolamine
-
-
-
additional information
?
-
substrate specificity, no activity with ethanol, ethylene glycol, and ethanolamine
-
-
-
additional information
?
-
-
no substrates: ethanol, ethylene glycol, or ethanolamine
-
-
-
additional information
?
-
no substrates: ethanol, ethylene glycol, or ethanolamine
-
-
-
additional information
?
-
-
substrate specificity, no activity with ethanol, ethylene glycol, and ethanolamine
-
-
-
additional information
?
-
substrate specificity, no activity with ethanol, ethylene glycol, and ethanolamine
-
-
-
additional information
?
-
-
no substrates: ethanol, ethylene glycol, or ethanolamine
-
-
-
additional information
?
-
no substrates: ethanol, ethylene glycol, or ethanolamine
-
-
-
additional information
?
-
no substrate: acetaldehyde
-
-
-
additional information
?
-
no substrate: acetaldehyde
-
-
-
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evolution

sulfoacetaldehyde reductase from the human gut fermenting bacterium Bifidobacterium kashiwanohense (BkTauF) belongs to the M-ADH family, but is distantly related to BwSarD (28% sequence identity), a sulfoacetaldehyde reductase from human gut sulfite-reducing bacterium Bilophila wadsworthia belonging to the metal-dependent alcohol dehydrogenase superfamily (M-ADH). Conservation of active site residues (D192, Q196, F252, T257, H261, F265 and H275) in close homologues of BkTauF
evolution
sulfoacetaldehyde reductase SarD, from human gut sulfite-reducing bacterium Bilophila wadsworthia belongs to the metal-dependent alcohol dehydrogenase superfamily (M-ADH). Sulfoacetaldehyde reductase from the human gut fermenting bacterium Bifidobacterium kashiwanohense (BkTauF) belongs to the M-ADH family, but is distantly related to BwSarD (28% sequence identity)
evolution
-
in diverse anaerobic bacteria including Firmicutes, Tenericutes, Spirochaetes, and Thermotogae bacteria, a sulfoquinone degradation pathway contains a mutarotase SqvB, an isomerase SqvD, a transketolase SqwGH, a homologue of ribose-5-phosphate isomerase SqwI, a metal-dependent alcohol dehydrogenase SqwF, and a member of the sulfite/sulfonate exporter family SqwE. This suggests a pathway involving isomerization of sulfoquinone to 6-deoxy-6-sulfofructose by SqvD, cleavage of 6-deoxy-6-sulfofructose by SqwGH, reduction of an aldehyde-containing sulfonate by SqwF, followed by export of the sulfonate end-product by SqwE
evolution
-
sulfoacetaldehyde reductase SarD, from human gut sulfite-reducing bacterium Bilophila wadsworthia belongs to the metal-dependent alcohol dehydrogenase superfamily (M-ADH). Sulfoacetaldehyde reductase from the human gut fermenting bacterium Bifidobacterium kashiwanohense (BkTauF) belongs to the M-ADH family, but is distantly related to BwSarD (28% sequence identity)
-
evolution
-
sulfoacetaldehyde reductase from the human gut fermenting bacterium Bifidobacterium kashiwanohense (BkTauF) belongs to the M-ADH family, but is distantly related to BwSarD (28% sequence identity), a sulfoacetaldehyde reductase from human gut sulfite-reducing bacterium Bilophila wadsworthia belonging to the metal-dependent alcohol dehydrogenase superfamily (M-ADH). Conservation of active site residues (D192, Q196, F252, T257, H261, F265 and H275) in close homologues of BkTauF
-
metabolism

the enzyme is involved in a pathway for taurine dissimilation, in which isethionate is generated as an intermediate, and further degraded to acetate and H2S instead of being secreted
metabolism
-
the enzyme is involved in a pathway for taurine dissimilation, in which isethionate is generated as an intermediate, and further degraded to acetate and H2S instead of being secreted
-
physiological function

hydroxyethylsulfonate (isethionate (Ise)) is generated by the sulfoacetaldehyde reductases from human gut bacteria. Isethionate is thought to be derived from aminoethylsulfonate (taurine), as a byproduct of taurine nitrogen assimilation by certain anaerobic bacteria inhabiting the taurine-rich mammalian gut. Sulfoacetaldehyde reductases in Bifidobacteria have a possible role in isethionate production as a byproduct of taurine nitrogen assimilation
physiological function
hydroxyethylsulfonate (isethionate (Ise)) is generated by the sulfoacetaldehyde reductases from human gut bacteria. Isethionate is thought to be derived from aminoethylsulfonate (taurine), as a byproduct of taurine nitrogen assimilation by certain anaerobic bacteria inhabiting the taurine-rich mammalian gut. Sulfoacetaldehyde reductases in Bifidobacteria have a possible role in isethionate production as a byproduct of taurine nitrogen assimilation
physiological function
in the taurine desulfonation pathway, an initial deamination of taurine to sulfoacetaldehyde by a taurine:pyruvate aminotransferase is followed by reduction of sulfoacetaldehyde to isethionate (2-hydroxyethanesulfonate) by NADH-dependent reductase SarD. Isethionate is then cleaved to sulfite and acetaldehyde by glycyl radical enzyme isethionate sulfite-lyase IslA
physiological function
involved in taurine degradation in human gut. TauF catalyzes NADH-dependent reduction of sulfoacetaldehyde, generating isethionate that is subsequently cleaved by sulfonate C-S lyase IseG
physiological function
-
involved in taurine degradation in human gut. TauF catalyzes NADH-dependent reduction of sulfoacetaldehyde, generating isethionate that is subsequently cleaved by sulfonate C-S lyase IseG
-
physiological function
-
in the taurine desulfonation pathway, an initial deamination of taurine to sulfoacetaldehyde by a taurine:pyruvate aminotransferase is followed by reduction of sulfoacetaldehyde to isethionate (2-hydroxyethanesulfonate) by NADH-dependent reductase SarD. Isethionate is then cleaved to sulfite and acetaldehyde by glycyl radical enzyme isethionate sulfite-lyase IslA
-
physiological function
-
hydroxyethylsulfonate (isethionate (Ise)) is generated by the sulfoacetaldehyde reductases from human gut bacteria. Isethionate is thought to be derived from aminoethylsulfonate (taurine), as a byproduct of taurine nitrogen assimilation by certain anaerobic bacteria inhabiting the taurine-rich mammalian gut. Sulfoacetaldehyde reductases in Bifidobacteria have a possible role in isethionate production as a byproduct of taurine nitrogen assimilation
-
physiological function
-
hydroxyethylsulfonate (isethionate (Ise)) is generated by the sulfoacetaldehyde reductases from human gut bacteria. Isethionate is thought to be derived from aminoethylsulfonate (taurine), as a byproduct of taurine nitrogen assimilation by certain anaerobic bacteria inhabiting the taurine-rich mammalian gut. Sulfoacetaldehyde reductases in Bifidobacteria have a possible role in isethionate production as a byproduct of taurine nitrogen assimilation
-
additional information

-
the BktauF structure and sequence shows conservation in secondary structure, and metal-coordinating residues except that Gln196 is atypical in the M-ADH family, with His being more common at that position. The putative isethionate-binding site adjacent to the catalytic Zn2+ is very open, which precluded molecular docking, active site structure analysis, overview. The position of isethionate is constrained by the requirements of the M-ADH catalytic mechanism, which requires coordination of the hydroxyl O-atom to Zn2+, and hydride transfer from C1 of isethionate to C4 of the NAD+. Phe252, Thr257 and Phe265 surrounding the active-site cavity are identified as potential substrate-interacting residues
additional information
the BktauF structure and sequence shows conservation in secondary structure, and metal-coordinating residues except that Gln196 is atypical in the M-ADH family, with His being more common at that position. The putative isethionate-binding site adjacent to the catalytic Zn2+ is very open, which precluded molecular docking, active site structure analysis, overview. The position of isethionate is constrained by the requirements of the M-ADH catalytic mechanism, which requires coordination of the hydroxyl O-atom to Zn2+, and hydride transfer from C1 of isethionate to C4 of the NAD+. Phe252, Thr257 and Phe265 surrounding the active-site cavity are identified as potential substrate-interacting residues
additional information
-
the BktauF structure and sequence shows conservation in secondary structure, and metal-coordinating residues except that Gln196 is atypical in the M-ADH family, with His being more common at that position. The putative isethionate-binding site adjacent to the catalytic Zn2+ is very open, which precluded molecular docking, active site structure analysis, overview. The position of isethionate is constrained by the requirements of the M-ADH catalytic mechanism, which requires coordination of the hydroxyl O-atom to Zn2+, and hydride transfer from C1 of isethionate to C4 of the NAD+. Phe252, Thr257 and Phe265 surrounding the active-site cavity are identified as potential substrate-interacting residues
-
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F252A

site-directed mutagenesis, the mutant shows 78% reduced activity for isethionate oxidation compared to wild-type enzyme
F252A
mutant retains approximately 28% of the wild-type activity
F265A

almost complete loss of activity
F265A
site-directed mutagenesis, the mutant shows highly reduced activity for isethionate oxidation compared to wild-type enzyme
T257A

almost complete loss of activity
T257A
site-directed mutagenesis, the mutant shows highly reduced activity for isethionate oxidation compared to wild-type enzyme
F252A

-
site-directed mutagenesis, the mutant shows 78% reduced activity for isethionate oxidation compared to wild-type enzyme
-
F252A
-
mutant retains approximately 28% of the wild-type activity
-
F265A

-
site-directed mutagenesis, the mutant shows highly reduced activity for isethionate oxidation compared to wild-type enzyme
-
F265A
-
almost complete loss of activity
-
T257A

-
site-directed mutagenesis, the mutant shows highly reduced activity for isethionate oxidation compared to wild-type enzyme
-
T257A
-
almost complete loss of activity
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
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Xing, M.; Wei, Y.; Zhou, Y.; Zhang, J.; Lin, L.; Hu, Y.; Hua, G.; N. Nanjaraj Urs, A.; Liu, D.; Wang, F.; Guo, C.; Tong, Y.; Li, M.; Liu, Y.; Ang, E.; Zhao, H.; Yuchi, Z.; Zhang, Y.
Radical-mediated C-S bond cleavage in C2 sulfonate degradation by anaerobic bacteria
Nat. Commun.
10
1609
2019
Bilophila wadsworthia (E5Y946), Bilophila wadsworthia 3_1_6 (E5Y946)
brenda
Peck, S.C.; Denger, K.; Burrichter, A.; Irwin, S.M.; Balskus, E.P.; Schleheck, D.
A glycyl radical enzyme enables hydrogen sulfide production by the human intestinal bacterium Bilophila wadsworthia
Proc. Natl. Acad. Sci. USA
116
3171-3176
2019
Bilophila wadsworthia (E5Y946), Bilophila wadsworthia 3_1_6 (E5Y946)
brenda
Zhou, Y.; Wei, Y.; Nanjaraj Urs, A.N.; Lin, L.; Xu, T.; Hu, Y.; Ang, E.L.; Zhao, H.; Yuchi, Z.; Zhang, Y.
Identification and characterization of a new sulfoacetaldehyde reductase from the human gut bacterium Bifidobacterium kashiwanohense
Biosci. Rep.
39
BSR20190715
2019
Bifidobacterium catenulatum subsp. kashiwanohense, Bifidobacterium catenulatum subsp. kashiwanohense (A0A0A7I0A5), Bilophila wadsworthia (E5Y946), Bilophila wadsworthia, Bilophila wadsworthia 3_1_6 (E5Y946), Bifidobacterium catenulatum subsp. kashiwanohense PV20-2, Bifidobacterium catenulatum subsp. kashiwanohense PV20-2 (A0A0A7I0A5)
brenda
Liu, J.; Wei, Y.; Ma, K.; An, J.; Liu, X.; Liu, Y.; Ang, E.; Zhao, H.; Zhang, Y.
Mechanistically diverse pathways for sulfoquinovose degradation in bacteria
ACS Catal.
11
14740-14750
2021
Clostridium sp. MSTE9
-
brenda