Phosphoglycerate Dehydrogenase

Identifiers Symbols PHGDH; 3-PGDH; 3PGDH; PDG; PGAD; PGD; PGDH; SERA External IDs OMIM: 606879 MGI: 1355330 HomoloGene: 39318 GeneCards: PHGDH Gene EC number 1.1.1.95

Gene Ontology
Molecular function phosphoglycerate dehydrogenase activity
electron carrier activity
NAD binding
Cellular component cytosol
Biological process glutamine metabolic process
glycine metabolic process
L-serine biosynthetic process
threonine metabolic process
brain development
cellular amino acid biosynthetic process
gamma-aminobutyric acid metabolic process
regulation of gene expression
taurine metabolic process
spinal cord development
glial cell development
neural tube development
cell cycle process
neuron projection development
cellular nitrogen compound metabolic process
small molecule metabolic process
Sources: Amigo / QuickGO
RNA expression pattern More reference expression data Orthologs Species Human Mouse Entrez 26227 236539 Ensembl ENSG00000092621 ENSMUSG00000053398 UniProt O43175 Q61753 RefSeq (mRNA) NM_006623 NM_016966 RefSeq (protein) NP_006614 NP_058662 Location (UCSC) Chr 1:
120.2 – 120.29 Mb Chr 3:
98.31 – 98.34 Mb PubMed search
phosphoglycerate dehydrogenase
Identifiers
EC number 1.1.1.95
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures
Search
PMC articles
PubMed articles
NCBI proteins

In enzymology, a D-3-phosphoglycerate dehydrogenase (EC 1.1.1.95) is an enzyme that catalyzes the chemical reactions

3-phospho-D-glycerate + NAD+ 3-phosphonooxypyruvate + NADH + H+
2-hydroxyglutarate + NAD+ 2-oxoglutarate + NADH + H+

Thus, in the first case, the two substrates of this enzyme are 3-phospho-D-glycerate and NAD+, whereas its 3 products are 3-phosphonooxypyruvate, NADH, and H+; in the second case, the two substrates of this enzyme are 2-hydroxyglutarate and NAD+, whereas its 3 products are 2-oxoglutarate, NADH, and H+.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD+ or NADP+ as acceptor.

In humans, this enzyme is encoded by the PHGDH gene. 3-Phosphoglycerate dehydrogenase (PHGDH; EC 1.1.1.95) catalyzes the transition of 3-phosphoglycerate into 3-phosphohydroxypyruvate, which is the first and rate-limiting step in the phosphorylated pathway of serine biosynthesis, using NAD+/NADH as a cofactor. Certain breast cancers are dependent on the overexpression of PHGDH.