homocysteine

What it touches on the way

What the reference databases state

• water+CHEBI:16680→adenosine+homocysteine

  Catalysed by AHCY or AHCYL2

  Reaction pageLeft to rightBalancedEC 3.13.2.1cytosol

  Human-GEM MAR03877CC BY 4.0Reference data

• homocysteine+L-seryl residue→water+L,L-cystathionine

  Catalysed by CBS

  Reaction pageLeft to rightBalancedEC 4.2.1.22cytosol

  Human-GEM MAR03879CC BY 4.0Reference data

• 5-methyltetrahydrofolic acid+homocysteine→proton+L-methionine+5,6,7,8-tetrahydrofolic acid

  Catalysed by MTR

  Reaction pageLeft to rightBalancedEC 2.1.1.13cytosol

  Human-GEM MAR03917CC BY 4.0Reference data

• water+L-homocysteine thiolactone⇌proton+homocysteine

  Catalysed by PON1 or PON3 or PON2

  Reaction pageReversibleBalancedEC 3.1.1.2cytosol

  Human-GEM MAR03920CC BY 4.0Reference data

• glycine betaine+homocysteine→CHEBI:17724+L-methionine

  Catalysed by BHMT2 or BHMT

  Reaction pageLeft to rightBalancedEC 2.1.1.5cytosol

  Human-GEM MAR04699CC BY 4.0Reference data

• homocysteine⇌

  Reaction pageReversibleBalance undeterminableextracellular space

  Human-GEM MAR09853CC BY 4.0Reference data

• 2CHEBI:16856+MAM03394c⇌glutathione disulfide+2homocysteine

  Reaction pageReversibleBalancedcytosol

  Human-GEM MAR11299CC BY 4.0Reference data

• homocysteine⇌homocysteine

  Reaction pageReversibleBalancedextracellular space, cytosol

  Human-GEM MAR11313CC BY 4.0Reference data

Resolves to: homocysteine

Also called

2-Amino-4-mercaptobutyric acidHcy

Systematic name

2-amino-4-sulfanylbutanoic acid