PHGDH
D-3-phosphoglycerate dehydrogenase
Also known as: PDG, PGDH, SERA, SERA_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O43175
- Gene
- PHGDH
- Ensembl
- ENSG00000092621
- Chromosome
- 1
- Canonical length
- 533 aa
- Protein class
- Disease related genes, Enzymes, Human disease related genes, Metabolic proteins, Plasma proteins, Potential drug targets, Predicted intracellular proteins
- Subcellular location
- Nucleoplasm,Plasma membrane,Cytosol
- Quaternary structure
- Homotetramer
OverviewNCBI Gene
This gene encodes the enzyme which is involved in the early steps of L-serine synthesis in animal cells. L-serine is required for D-serine and other amino acid synthesis. The enzyme requires NAD/NADH as a cofactor and forms homotetramers for activity. Mutations in this gene have been found in a family with congenital microcephaly, psychomotor retardation and other symptoms. Multiple alternatively spliced transcript variants have been found, however the full-length nature of most are not known. [provided by RefSeq, Aug 2011]
Canonical amino-acid sequenceUniProt
533 residues, UniProt reviewed canonical sequence.
>O43175|PHGDH
1 MAFANLRKVL ISDSLDPCCR KILQDGGLQV VEKQNLSKEE LIAELQDCEG LIVRSATKVT
61 ADVINAAEKL QVVGRAGTGV DNVDLEAATR KGILVMNTPN GNSLSAAELT CGMIMCLARQ
121 IPQATASMKD GKWERKKFMG TELNGKTLGI LGLGRIGREV ATRMQSFGMK TIGYDPIISP
181 EVSASFGVQQ LPLEEIWPLC DFITVHTPLL PSTTGLLNDN TFAQCKKGVR VVNCARGGIV
241 DEGALLRALQ SGQCAGAALD VFTEEPPRDR ALVDHENVIS CPHLGASTKE AQSRCGEEIA
301 VQFVDMVKGK SLTGVVNAQA LTSAFSPHTK PWIGLAEALG TLMRAWAGSP KGTIQVITQG
361 TSLKNAGNCL SPAVIVGLLK EASKQADVNL VNAKLLVKEA GLNVTTSHSP AAPGEQGFGE
421 CLLAVALAGA PYQAVGLVQG TTPVLQGLNG AVFRPEVPLR RDLPLLLFRT QTSDPAMLPT
481 MIGLLAEAGV RLLSYQTSLV SDGETWHVMG ISSLLPSLEA WKQHVTEAFQ FHFLocalizationUniProt · AlphaFold · HPA
Whether an antibody against PHGDH can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.25
- Highest tissue expression
- 161 nTPM
Expression across tissuesHPA
Tissue
- pancreas: 161 nTPM
- salivary gland: 147 nTPM
- amygdala: 137 nTPM
- basal ganglia: 134 nTPM
- midbrain: 121 nTPM
- liver: 118 nTPM
Single-cell type
- epididymal principal cells: 269 nCPM
- esophageal basal cells: 209 nCPM
- lacrimal acinar cells: 199 nCPM
- late spermatids: 198 nCPM
- cholangiocytes: 183 nCPM
- salivary acinar cells: 140 nCPM
Immune cell
- naive CD8 T-cell: 25 nTPM
- naive CD4 T-cell: 13 nTPM
- memory B-cell: 11 nTPM
- memory CD8 T-cell: 8.2 nTPM
- total PBMC: 6.3 nTPM
- myeloid DC: 5.3 nTPM
Brain region
- white matter: 181 nTPM
- cerebellum: 139 nTPM
- hypothalamus: 137 nTPM
- basal ganglia: 124 nTPM
- medulla oblongata: 120 nTPM
- pons: 110 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about PHGDH.
Disease | AllUniProt
Conditions PHGDH is implicated in, by any mechanism.
- Phosphoglycerate dehydrogenase deficiency (PHGDHD) MIM:601815
- Neu-Laxova syndrome 1 (NLS1) MIM:256520
Disease | GeneticClinVar
97 pathogenic / likely-pathogenic of 948 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- PHGDH deficiency
- Neu-Laxova syndrome 1
- Autosomal recessive PHGDH-related disorders
- See cases
- PHGDH-related disorder
ReferencesPubMed · IEDB
Publications for PHGDH from three distinct lines of evidence, kept separate because they answer different questions: whether antibodies are directed at the protein, whether a B-cell epitope has been mapped on it, and whether a T-cell epitope has. Each is labelled with its source.
Reference: AutoantibodyPubMed
1 publication
- Detection of D-3-phosphoglycerate dehydrogenase autoantibodies in patients with autoimmune hepatitis: Clinical significance evaluation.
2011 · Hepatol Res · RCR 0.2 · 6 citations
Sources: PubMed — antigen-level antibody evidence from a custom retrieval. Records matching a controlled set of autoantibody terms (the MeSH descriptors Autoantibodies and Autoantigens, with title and abstract term variants) were obtained through NCBI E-utilities, and their titles and abstracts parsed for constructions that direct an antibody at a named protein rather than for co-occurrence. Captured names were resolved against UniProt nomenclature and each antigen adjudicated individually against the source text. Bibliographic records from PubMed and MeSH, U.S. National Library of Medicine; citation metrics from NIH iCite (Hutchins et al., PLoS Biology 2016). Titles link to PubMed; abstracts are not reproduced here. The NLM does not endorse this analysis.
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.78
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.21
- DepMap mean gene effect
- -0.05
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 6% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- brain development
- G1 to G0 transition
- gamma-aminobutyric acid metabolic process
- glial cell development
- glutamine metabolic process
- glycine metabolic process
- L-serine biosynthetic process
- neural tube development
- neuron projection development
- regulation of gene expression
- spinal cord development
- taurine metabolic process
- threonine metabolic process
Molecular functions
- electron transfer activity
- L-malate dehydrogenase (NAD+) activity
- NAD binding
- phosphoglycerate dehydrogenase activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
- D-isomer specific 2-hydroxyacid dehydrogenase, catalytic domain
- D-isomer specific 2-hydroxyacid dehydrogenase, NAD-binding domain
- D-isomer specific 2-hydroxyacid dehydrogenase, NAD-binding domain conserved site 1
- D-isomer specific 2-hydroxyacid dehydrogenase, NAD-binding domain conserved site
- NAD(P)-binding domain superfamily
- D-isomer specific 2-hydroxyacid dehydrogenase, catalytic domain
- D-isomer specific 2-hydroxyacid dehydrogenase, NAD binding domain
- D-3-phosphoglycerate dehydrogenase
- Allosteric substrate binding domain superfamily
- D-3-phosphoglycerate dehydrogenase, ASB domain
- D-3-phosphoglycerate dehydrogenase intervening domain
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of PHGDH in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads PHGDH as an antibody target. Whether an autoantibody or antibody against PHGDH could matter depends on whether native PHGDH is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
PHGDH is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label PHGDH as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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