Compound as reactive (40)
NADPH + (E)-5-(methylsulfanyl)pentanal oxime + H+ + L-cysteine + oxygen → 2 H2O + (E)-1-(L-cystein-S-yl)-N-hydroxy-ω-(methylsulfanyl)pentan-1-imine + NADP+
a reduced electron donor + L-cysteine + MoO2-molybdopterin cofactor → an oxidized electron donor + H2O + L-alanine + thio-molybdenum cofactor
NADPH + (E)-7-(methyltsulfanyl)heptanal oxime + H+ + L-cysteine + oxygen → 2 H2O + (E)-1-(L-cystein-S-yl)-N-hydroxy-ω-(methylsulfanyl)heptan-1-imine + NADP+
1-(2-amino-2-deoxy-α-D-glucopyranosyl)-1D-myo-inositol + L-cysteine + ATP → deacetylmycothiol + H+ + diphosphate + AMP
sulfoacetaldehyde + L-cysteine → H2O + 2-(sulfomethyl)thiazolidine-4-carboxylate + H+
L-homocysteine + L-cysteine → L-cystathionine + hydrogen sulfide
an oxidized electron donor + 2-cyano-6-hydroxybenzothiazole + L-cysteine → a reduced electron donor + L-firefly luciferin + ammonium
hercynine + L-cysteine + oxygen → H2O + S-(hercyn-2-yl)-L-cysteine S-oxide
2 L-cysteine → lanthionine + hydrogen sulfide
(R)-4'-phosphopantothenate + L-cysteine + CTP → (R)-4'-phosphopantothenoyl-L-cysteine + CMP + H+ + diphosphate
3 ATP + H2O + L-2-aminoadipate + L-valine + L-cysteine → 3 H+ + 3 diphosphate + 3 AMP + N-[(5S)-5-amino-5-carboxypentanoyl]-L-cysteinyl-D-valine
3 S-adenosyl-L-methionine + 3 L-cysteine + 8 H+ + NADPH + (salicyl)adenylate + malonyl-CoA → 3 S-adenosyl-L-homocysteine + 8 H2O + coenzyme A + NADP+ + yersiniabactin + AMP
L-glutamate + L-cysteine + ATP → H+ + phosphate + ADP + γ-L-glutamyl-L-cysteine
NADPH + (E)-6-(methylsulfanyl)hexanal oxime + H+ + L-cysteine + oxygen → 2 H2O + (E)-1-(L-cystein-S-yl)-N-hydroxy-ω-(methylsulfanyl)hexan-1-imine + NADP+
L-cysteine + ATP → (L-cysteinyl)adenylate + diphosphate
NADPH + (E)-8-(methylsulfanyl)octanal oxime + H+ + L-cysteine + oxygen → 2 H2O + (E)-1-(L-cystein-S-yl)-N-hydroxy-ω-(methylsulfanyl)octan-1-imine + NADP+
(R)-4'-phosphopantothenate + L-cysteine + ATP → (R)-4'-phosphopantothenoyl-L-cysteine + H+ + diphosphate + AMP
L-cysteine + indole-3-carbinol → H2O + indol-3-ylmethyl-L-cysteine
L-cysteine + oxygen → 3-sulfino-L-alanine + H+
O-acetyl-L-homoserine + L-cysteine → acetate + H+ + L-cystathionine
O-phospho-L-homoserine + L-cysteine → L-cystathionine + phosphate
H2O + L-cysteine → L-serine + hydrogen sulfide
L-cysteine → H+ + 2-aminoprop-2-enoate + hydrogen sulfide
dopaquinone + L-cysteine → 5-S-cysteinyldopa
dopaquinone + L-cysteine → 2-S-cysteinyldopa
H2O + L-cysteine + ATP → L-cysteine + phosphate + ADP
L-histidine + L-cysteine → S-4-(histidyl)-cysteine sulfoxide
H+ + L-cysteine + sulfite → L-cysteate + hydrogen sulfide
NADPH + H+ + (Z)-phenylacetaldehyde oxime + L-cysteine + oxygen → 2 H2O + (Z)-1-(L-cystein-S-yl)-N-hydroxy-2-phenylethan-1-imine + NADP+
NADPH + (E)-4-(methylsulfanyl)butanal oxime + H+ + L-cysteine + oxygen → 2 H2O + (E)-1-(L-cystein-S-yl)-N-hydroxy-ω-(methylsulfanyl)butan-1-imine + NADP+
2 L-cysteine + salicylate + NADPH + S-adenosyl-L-methionine → 4 H2O + S-adenosyl-L-homocysteine + NADP+ + pyochelin
NADPH + (E)-9-(methylsulfanyl)nonanal oxime + H+ + L-cysteine + oxygen → 2 H2O + (E)-1-(L-cystein-S-yl)-N-hydroxy-ω-(methylsulfanyl)nonan-1-imine + NADP+
1,4-benzoquinone + L-cysteine → 2-amino-3-[(2,5-dihydroxyphenyl)sulfanyl]propanoate
(S)-malyl α-D-glucosaminide + L-cysteine → H2O + bacillithiol
3 S-adenosyl-L-methionine + 3 H+ + 3 L-cysteine + 6 NADPH + (salicyl)adenylate + malonyl-CoA → 3 S-adenosyl-L-homocysteine + 6 NADP+ + 8 H2O + coenzyme A + yersiniabactin + AMP
L-histidine + L-cysteine + oxygen → H2O + L-alanin-3-yl L-histidin-5-yl S-oxide
4 an oxidized electron donor + 2-amino-3-[(2,5-dihydroxyphenyl)sulfanyl]propanoate + L-cysteine → 4 a reduced electron donor + H2O + L-firefly luciferin + H+ + CO2
ATP + L-cysteine + H2O → ADP + L-cysteine + phosphate + H+
H2O + L-cysteine → pyruvate + ammonium + hydrogen sulfide
ATP + L-cysteine + tRNA(Cys) → AMP + Cys-tRNA(Cys) + diphosphate
Compound as product (13)
2 glutathione + S-sulfo-L-cysteine → H+ + glutathione disulfide + L-cysteine + sulfite
H2O + S-(2E,6E)-farnesyl-L-cysteine + oxygen → hydrogen peroxide + (2E,6E)-farnesal + L-cysteine
H2O + L-cystathionine → ammonia + 2-oxobutanoate + H+ + L-cysteine
2 glutathione + L-cystine → 2 L-cysteine + glutathione disulfide
L-cystathionine → H+ + L-cysteine + (2Z)-2-aminobut-2-enoate
3-phospho-L-serine + hydrogen sulfide → L-cysteine + phosphate
H2O + S-prenyl-L-cysteine + oxygen → hydrogen peroxide + 3-methyl-2-butenal + L-cysteine
2 L-cysteine + NAD+ ← L-cystine + NADH + H+
O-acetyl-L-serine + S-sulfanylglutathione → acetate + glutathione + L-cysteine
H2O + L-cysteine + ATP → L-cysteine + phosphate + ADP
H2O + L-cystathionine → 2-oxobutanoate + ammonium + L-cysteine
H2O + L-cysteinylglycine → glycine + L-cysteine
ATP + L-cysteine + H2O → ADP + L-cysteine + phosphate + H+
Reversible reaction (14)
2-oxoglutarate + L-cysteine ↔ 3-mercaptopyruvate + L-glutamate
cyclopropene + L-cysteine ↔ S-allyl-L-cysteine
dopamine quinone + L-cysteine ↔ 5-S-cysteinyl dopamine
hydrogen cyanide + L-cysteine ↔ 3-cyano-L-alanine + H+ + hydrogen sulfide
L-cysteine + indole-3-carboxaldehyde ↔ S-indole-L-cysteine
O-succinyl-L-homoserine + L-cysteine ↔ H+ + L-cystathionine + succinate
glycine + NAD+ + L-cysteine ↔ nicotinamide + ADP-5-ethyl-4-methylthiazole-2-carboxylate
O-acetyl-L-serine + hydrogen sulfide ↔ acetate + H+ + L-cysteine
acetyl-CoA + L-serine + hydrogen sulfide ↔ coenzyme A + acetate + L-cysteine
NADPH + H+ + (glutathion-S-yl)-L-cysteine ↔ NADP+ + glutathione + L-cysteine
ethane + L-cysteine ↔ S-ethyl-L-cysteine + H2
L-cysteine + 5-hydroxyindole acetaldehyde ↔ H2O + 5-hydroxyindole thiazolidine carboxylate
uridine + H+ + L-cysteine + ATP ↔ L-alanine + 2-thiouridine + diphosphate + AMP
H2O + L-cystathionine ↔ L-homoserine + L-cysteine