PGD
6-phosphogluconate dehydrogenase, decarboxylating
Also known as: 6PGD_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P52209
- Gene
- PGD
- Ensembl
- ENSG00000142657
- Chromosome
- 1
- Canonical length
- 483 aa
- Protein class
- Enzymes, Metabolic proteins, Plasma proteins, Predicted intracellular proteins
- Subcellular location
- Intermediate filaments,Cytosol
- Quaternary structure
- Homodimer
OverviewNCBI Gene
6-phosphogluconate dehydrogenase is the second dehydrogenase in the pentose phosphate shunt. Deficiency of this enzyme is generally asymptomatic, and the inheritance of this disorder is autosomal dominant. Hemolysis results from combined deficiency of 6-phosphogluconate dehydrogenase and 6-phosphogluconolactonase suggesting a synergism of the two enzymopathies. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2015]
Canonical amino-acid sequenceUniProt
483 residues, UniProt reviewed canonical sequence.
>P52209|PGD
1 MAQADIALIG LAVMGQNLIL NMNDHGFVVC AFNRTVSKVD DFLANEAKGT KVVGAQSLKE
61 MVSKLKKPRR IILLVKAGQA VDDFIEKLVP LLDTGDIIID GGNSEYRDTT RRCRDLKAKG
121 ILFVGSGVSG GEEGARYGPS LMPGGNKEAW PHIKTIFQGI AAKVGTGEPC CDWVGDEGAG
181 HFVKMVHNGI EYGDMQLICE AYHLMKDVLG MAQDEMAQAF EDWNKTELDS FLIEITANIL
241 KFQDTDGKHL LPKIRDSAGQ KGTGKWTAIS ALEYGVPVTL IGEAVFARCL SSLKDERIQA
301 SKKLKGPQKF QFDGDKKSFL EDIRKALYAS KIISYAQGFM LLRQAATEFG WTLNYGGIAL
361 MWRGGCIIRS VFLGKIKDAF DRNPELQNLL LDDFFKSAVE NCQDSWRRAV STGVQAGIPM
421 PCFTTALSFY DGYRHEMLPA SLIQAQRDYF GAHTYELLAK PGQFIHTNWT GHGGTVSSSS
481 YNALocalizationUniProt · AlphaFold · HPA
Whether an antibody against PGD 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
- 483 nTPM
Expression across tissuesHPA
Tissue
- esophagus: 483 nTPM
- bone marrow: 378 nTPM
- vagina: 108 nTPM
- salivary gland: 107 nTPM
- adipose tissue: 103 nTPM
- spleen: 92 nTPM
Single-cell type
- esophageal apical cells: 1,297 nCPM
- esophageal suprabasal cells: 1,123 nCPM
- neutrophil progenitors: 929 nCPM
- neutrophils: 902 nCPM
- esophageal basal cells: 519 nCPM
- suprabasal keratinocytes: 329 nCPM
Immune cell
- eosinophil: 1,078 nTPM
- basophil: 1,065 nTPM
- neutrophil: 334 nTPM
- classical monocyte: 322 nTPM
- total PBMC: 225 nTPM
- myeloid DC: 145 nTPM
Brain region
- hypothalamus: 76 nTPM
- medulla oblongata: 74 nTPM
- thalamus: 71 nTPM
- pons: 70 nTPM
- midbrain: 68 nTPM
- cerebellum: 64 nTPM
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)
- 0.29
- gnomAD pLI
- 0.99
- gnomAD missense Z
- 1.4
- DepMap mean gene effect
- -0.87
- DepMap dependency class
- common
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- pentose biosynthetic process
- pentose-phosphate shunt
- pentose-phosphate shunt, oxidative branch
- D-gluconate metabolic process
Molecular functions
- carbohydrate binding
- carboxylic acid binding
- NADP binding
- phosphogluconate dehydrogenase (decarboxylating) activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
- 6-phosphogluconate dehydrogenase, NADP-binding
- 6-phosphogluconate dehydrogenase-like, C-terminal domain superfamily
- 6-phosphogluconate dehydrogenase, domain 2
- NAD(P)-binding domain superfamily
- NAD binding domain of 6-phosphogluconate dehydrogenase
- 6-phosphogluconate dehydrogenase, decarboxylating
- 6-phosphogluconate dehydrogenase, C-terminal
- 6-phosphogluconate dehydrogenase
- 6-phosphogluconate-binding site
- 6-phosphogluconate dehydrogenase, C-terminal domain
KeywordsUniProt
- Acetylation
- Cytoplasm
- NADP
- Oxidoreductase
- Pentose shunt
- Phosphoprotein
- Gluconate utilization
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads PGD as an antibody target. Whether an autoantibody or antibody against PGD could matter depends on whether native PGD is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
PGD 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 PGD as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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