3-phosphoglycerate
NAD+
D-3-P-glycerate dehydrogenase
low protein diet
Serine
NADH + H+


3-P-hydroxy-pyruvate
Glutamate
phosphoserine transaminase
low protein diet
2-oxoglutarate
3-phosphoserine
H2O
phosphoserine phosphatase
low protein diet
Serine
Pi

Serine
5,6,7,8-tetrahydrofolate
H2O

amino methyll- transferase

5,10-methylene tetrahydrofolate
serine+
serine+

homocysteine
+

Glycine
H2O
cystathionine ß-synthase (PLP)
ADP, AMP

Cystathionine

Cysteine
cystathionine g-lyase (PLP)
H2O     NH4+
  +


2-oxobutirate
Overview:
Amino acid Synthesis
Serine, Glycine e Cysteine
3-P-glycerate
Serine Glycine
Cysteine
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