3-Phosphoglycerates: serine, glycine, cysteine
From Proteopedia
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<StructureSection load='' size='350' side='right' caption='Phosphoglycerate dehydrogenase complex with hydroxypyruvic acid phosphate and tartarate (PDB entry [[3ddn]])' scene='49/491889/Cv/1'>  | <StructureSection load='' size='350' side='right' caption='Phosphoglycerate dehydrogenase complex with hydroxypyruvic acid phosphate and tartarate (PDB entry [[3ddn]])' scene='49/491889/Cv/1'>  | ||
| - | + | Serine is the first amino acid in this family to be produced; it is then modified to produce both glycine and cysteine (and many other biologically important molecules). Serine is formed from 3-phosphoglycerate in the following pathway:  | |
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| - | + | 3-phosphoglycerate → phosphohydroxyl-pyruvate → phosphoserine → serine  | |
| - | + | The conversion from 3-phosphoglycerate to phosphohydroxyl-pyruvate is achieved by the enzyme [[phosphoglycerate dehydrogenase]]. This enzyme is the key regulatory step in this pathway. Phosphoglycerate dehydrogenase is regulated by the concentration of serine in the cell.  | |
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== References ==  | == References ==  | ||
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