cysteine biosynthesis III (mammalia)

Metabolites

Adenosine

Formula: C10H13N5O4 (267.09674980000005)

CAS ID: 58-61-7

Ammonia

Formula: NH3 (17.0265478)

CAS ID: 7664-41-7

ATP

Formula: C10H16N5O13P3 (506.9957476)

CAS ID: 56-65-5

Diphosphate

Formula: H4P2O7 (177.9432294)

CAS ID: 2466-09-3

H+

Formula: H (1.0078246)

CAS ID: 12408-02-5

H2O

Formula: H2O (18.0105642)

CAS ID: 7732-18-5



Enzyme

EC Number name full name note
2.5.1.6 methionine adenosyltransferase ATP:L-methionine S-adenosyltransferase
3.13.2.1 adenosylhomocysteinase S-adenosyl-L-homocysteine hydrolase
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