Homocystinuria, Cystathionine beta-Synthase Deficiency

Metabolites

2-Oxobutanoate

Formula: C4H6O3 (102.0316926)

CAS ID: 600-18-0

Ammonia

Formula: NH3 (17.0265478)

CAS ID: 7664-41-7

H2O

Formula: H2O (18.0105642)

CAS ID: 7732-18-5

L-Cysteine

Formula: C3H7NO2S (121.0197482)

CAS ID: 52-90-4

L-Serine

Formula: C3H7NO3 (105.0425912)

CAS ID: 56-45-1



Enzyme

EC Number name full name note
4.2.1.22 cystathionine beta-synthase L-serine hydro-lyase (adding homocysteine; L-cystathionine-forming)
4.4.1.1 cystathionine gamma-lyase L-cystathionine cysteine-lyase (deaminating; 2-oxobutanoate-forming)
4.4.1.2 homocysteine desulfhydrase L-homocysteine hydrogen-sulfide-lyase (deaminating; 2-oxobutanoate-forming)


Proteins

Protein ID name full name