PDPR
Pyruvate dehydrogenase phosphatase regulatory subunit, mitochondrial
Also known as: PDP3, PDPR_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q8NCN5
- Gene
- PDPR
- Ensembl
- ENSG00000090857
- Chromosome
- 16
- Canonical length
- 879 aa
- Protein class
- Metabolic proteins, Predicted intracellular proteins
- Subcellular location
- Mitochondria
OverviewNCBI Gene
Pyruvate dehydrogenase complex (PDC) catalyzes the oxidative decarboxylation of pyruvate and links glycolysis to the tricarboxylic acid cycle and fatty acid synthesis. The dephosphorylation and reactivation of PDC is catalyzed by pyruvate dehydrogenase phosphatase (PDP). The dimeric PDP has a catalytic subunit and a regulatory subunit. This gene encodes the FAD-containing regulatory subunit of PDP. The encoded protein acts to decrease the sensitivity of the PDP catalytic subunit to magnesium ions. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jan 2017]
Canonical amino-acid sequenceUniProt
879 residues, UniProt reviewed canonical sequence.
>Q8NCN5|PDPR
1 MMFYRLLSIV GRQRASPGWQ NWSSARNSTS AAEARSMALP TQAQVVICGG GITGTSVAYH
61 LSKMGWKDIV LLEQGRLAAG STRFCAGILS TARHLTIEQK MADYSNKLYY QLEQETGIQT
121 GYTRTGSIFL AQTQDRLISL KRINAGLNVI GIPSEIISPK KVAELHHLLN VHDLVGAMHV
181 PEDAVVSSAD VALALASAAS QNGVQIYDRT SVLHVMVKKG QVTGVETDKG QIECQYFVNC
241 AGQWAYELGL SNEEPVSIPL HACEHFYLLT RPLETPLQSS TPTIVDADGR IYIRNWQGGI
301 LSGGFEKNPK PIFTEGKNQL EIQNLQEDWD HFEPLLSSLL RRMPELETLE IMKLVNCPET
361 FTPDMRCIMG ESPAVQGYFV LAGMNSAGLS FGGGAGKYLA EWMVHGYPSE NVWELDLKRF
421 GALQSSRTFL RHRVMEVMPL MYDLKVPRWD FQTGRQLRTS PLYDRLDAQG ARWMEKHGFE
481 RPKYFVPPDK DLLALEQSKT FYKPDWFDIV ESEVKCCKEA VCVIDMSSFT KFEITSTGDQ
541 ALEVLQYLFS NDLDVPVGHI VHTGMLNEGG GYENDCSIAR LNKRSFFMIS PTDQQVHCWA
601 WLKKHMPKDS NLLLEDVTWK YTALNLIGPR AVDVLSELSY APMTPDHFPS LFCKEMSVGY
661 ANGIRVMSMT HTGEPGFMLY IPIEYALHVY NEVMSVGQKY GIRNAGYYAL RSLRIEKFFA
721 FWGQDINNLT TPLECGRESR VKLEKGMDFI GRDALLQQKQ NGVYKRLTMF ILDDHDSDLD
781 LWPWWGEPIY RNGQYVGKTT SSAYSYSLER HVCLGFVHNF SEDTGEEQVV TADFINRGEY
841 EIDIAGYRFQ AKAKLYPVAS LFTQKRRKDD MELSDLHGKLocalizationUniProt · AlphaFold · HPA
Whether an antibody against PDPR 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)
- 0.22
- Highest tissue expression
- 22 nTPM
Expression across tissuesHPA
Tissue
- skeletal muscle: 22 nTPM
- cerebellum: 21 nTPM
- testis: 20 nTPM
- spleen: 16 nTPM
- kidney: 15 nTPM
- bone marrow: 15 nTPM
Single-cell type
- early spermatids: 79 nCPM
- adrenal cortex cells: 73 nCPM
- proximal tubule cells: 72 nCPM
- distal convoluted tubule cells: 63 nCPM
- retinal amacrine cells: 59 nCPM
- podocytes: 59 nCPM
Immune cell
- MAIT T-cell: 2.1 nTPM
- basophil: 1.6 nTPM
- myeloid DC: 1.6 nTPM
- naive B-cell: 1.6 nTPM
- plasmacytoid DC: 1.6 nTPM
- classical monocyte: 1.5 nTPM
Brain region
- cerebellum: 28 nTPM
- white matter: 25 nTPM
- basal ganglia: 25 nTPM
- midbrain: 23 nTPM
- thalamus: 23 nTPM
- medulla oblongata: 22 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)
- 0.68
- gnomAD pLI
- 0
- gnomAD missense Z
- -0.49
- DepMap mean gene effect
- -0.25
- DepMap dependency class
- selective
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
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Rhodanese-like domain
- FAD dependent oxidoreductase
- GCVT, N-terminal domain
- Aminomethyltransferase, C-terminal domain
- Aminomethyltransferase superfamily
- Aminomethyltransferase-like
- Glycine cleavage T-protein/YgfZ, C-terminal
- FAD dependent oxidoreductase, central domain
- FAD/NAD(P)-binding domain superfamily
- FAD dependent oxidoreductase
- GCVT N-terminal domain
- Glycine cleavage T-protein C-terminal barrel domain
- FAD dependent oxidoreductase central domain
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads PDPR as an antibody target. Whether an autoantibody or antibody against PDPR could matter depends on whether native PDPR is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
PDPR 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 PDPR as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
Loading the interactive Seroatlas protein explorer...