Rhea:RHEA:14503

Multi-step reaction: RHEA:43012 + RHEA:39967 + RHEA:39975.

2-oxobutanoate + hydrogen sulfide + NH4+ + H+ => L-homocysteine + H2O

L-homocysteine zwitterion[C4H9NO2S] + H2O[H2O] = 2-Oxobutanoate[C4H6O3] + hydrosulfide[HS] + NH4+[NH4] + H+[H]

DB Links

  • EC Number: 4.4.1.2
  • Rhea: RHEA:14503
Alias

Metabolites

Substrates
metabolite compartment Structure
L-homocysteine zwitterion

Formula: C4H9NO2S 		Cytoplasm
H2O

Formula: H2O 		Cytoplasm
Products
metabolite compartment Structure
2-Oxobutanoate

Formula: C4H6O3		 Cytoplasm
hydrosulfide

Formula: HS		 Cytoplasm
NH4+

Formula: NH4		 Cytoplasm
H+

Formula: H		 Cytoplasm