Ligand S-ethyl-L-cysteine

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Basic Ligand Information

Molecular Structure
Picture of S-ethyl-L-cysteine (click for magnification)
Molecular Formula
BRENDA Name
InChIKey
C5H11NO2S
S-ethyl-L-cysteine
ULXKXLZEOGLCRJ-BYPYZUCNSA-N
Synonyms:
(S)-ethyl-L-cysteine, S-ethyl-L-Cys, S-ethylcysteine, S-ethyl cysteine, S-ethyl L-cysteine
Pathway Source
Pathways

Roles as Enzyme Ligand

Substrate in Enzyme-catalyzed Reactions (28 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
(S)-ethyl-L-cysteine + 2-oxoglutarate + O2 = S-ethyl-L-cysteine (S)-sulfoxide + succinate + CO2
show the reaction diagram
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acetyl-CoA + S-ethyl-L-cysteine = CoA + N-acetyl-S-ethyl-L-cysteine
show the reaction diagram
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S-Ethyl-L-Cys = 2-Ethylthioethanamine + CO2
show the reaction diagram
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S-ethyl-L-cysteine = ?
show the reaction diagram
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S-ethyl-L-cysteine + H2O = sulfide + ?
show the reaction diagram
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S-ethyl L-cysteine + H2O = ?
show the reaction diagram
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Product in Enzyme-catalyzed Reactions (4 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
O3-acetyl-L-serine + ethylmercaptan = S-ethyl-L-cysteine + acetate
show the reaction diagram
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S-ethyl-N-acetyl-L-cysteine + H2O = acetate + S-ethyl-L-cysteine
show the reaction diagram
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O-acetyl-L-serine + ethylmercaptan = S-ethyl-L-cysteine + acetate
show the reaction diagram
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3-chloro-L-alanine + ethylmercaptan = S-ethyl-L-cysteine + Cl-
show the reaction diagram
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Activator in Enzyme-catalyzed Reactions (1 result)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
enhances significantly glyoxalase I activity, dose-dependently 0-2 g/l, pH 6.6, 37°C
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Inhibitor in Enzyme-catalyzed Reactions (3 results)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
competitive
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3D Structure of Enzyme-Ligand-Complex (PDB) (1 result)

EC NUMBER
ENZYME 3D STRUCTURE

Enzyme Kinetic Parameters

kcat Value (Turnover Number) (34 results)

EC NUMBER
TURNOVER NUMBER [1/S]
TURNOVER NUMBER MAXIMUM [1/S]
COMMENTARY
LITERATURE
9.5
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pH and temperature not specified in the publication, addition of Brij 35 to the assay buffer

KM Value (25 results)

EC NUMBER
KM VALUE [MM]
KM VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE
7.1
-
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38
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enzyme A
0.28
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pH and temperature not specified in the publication, addition of Brij 35 to the assay buffer

Ki Value (2 results)

EC NUMBER
KI VALUE [MM]
KI VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE

References & Links

Links to other databases for S-ethyl-L-cysteine

ChEBI
PubChem
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PubChem