PDPR

gene
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Also known as PDP3

Summary

PDPR (pyruvate dehydrogenase phosphatase regulatory subunit, HGNC:30264) is a protein-coding gene on chromosome 16q22.1, encoding Pyruvate dehydrogenase phosphatase regulatory subunit, mitochondrial (Q8NCN5). Decreases the sensitivity of PDP1 to magnesium ions, and this inhibition is reversed by the polyamine spermine.

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.

Source: NCBI Gene 55066 — RefSeq curated summary.

At a glance

  • GWAS associations: 1
  • Clinical variants (ClinVar): 134 total
  • MANE Select transcript: NM_017990

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:30264
Approved symbolPDPR
Namepyruvate dehydrogenase phosphatase regulatory subunit
Location16q22.1
Locus typegene with protein product
StatusApproved
AliasesPDP3
Ensembl geneENSG00000090857
Ensembl biotypeprotein_coding
OMIM617835
Entrez55066

Gene structure

Transcript identifiers

Ensembl transcripts: 20 — 16 protein_coding, 2 nonsense_mediated_decay, 1 retained_intron, 1 protein_coding_CDS_not_defined

ENST00000288050, ENST00000398122, ENST00000561920, ENST00000562100, ENST00000563930, ENST00000564563, ENST00000565186, ENST00000567046, ENST00000567896, ENST00000568530, ENST00000569042, ENST00000875253, ENST00000875254, ENST00000875255, ENST00000875256, ENST00000875257, ENST00000951256, ENST00000951257, ENST00000951258, ENST00000951259

RefSeq mRNA: 6 — MANE Select: NM_017990 NM_001322117, NM_001322118, NM_001322119, NM_001421699, NM_001421751, NM_017990

CCDS: CCDS45520, CCDS82007

Canonical transcript exons

ENST00000288050 — 19 exons

ExonStartEnd
ENSE000011422587013130270131419
ENSE000013660407011482170114930
ENSE000013730227011433270114440
ENSE000024379527012878470128865
ENSE000024999637012895970129122
ENSE000026121627015647570162537
ENSE000034781897014255370142686
ENSE000034805957012726070127393
ENSE000035757297013042370130544
ENSE000035868517014846470148553
ENSE000035913247014442170144533
ENSE000036016147012046170120719
ENSE000036238177013215170132300
ENSE000036338647013619470136386
ENSE000036432377013889970139023
ENSE000036603897015339170153573
ENSE000036642657014351070143658
ENSE000036646897014613470146228
ENSE000036840707014223470142389

Expression profiles

Bgee: expression breadth ubiquitous, 266 present calls, max score 92.39.

FANTOM5 (CAGE): breadth ubiquitous, TPM avg 7.3706 / max 71.6892, expressed in 1760 samples.

FANTOM5 promoters (3 alternative TSS)

Promoter IDTPM avgSamples expressed
1548675.72271703
2079310.9983639
1548660.6496375

Top tissues by expression

290 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
secondary oocyteCL:000065592.39gold quality
oocyteCL:000002392.21gold quality
nippleUBERON:000203091.44gold quality
parietal pleuraUBERON:000240090.45gold quality
skin of hipUBERON:000155490.01gold quality
inferior vagus X ganglionUBERON:000536389.44gold quality
pleuraUBERON:000097789.01gold quality
renal medullaUBERON:000036288.62gold quality
visceral pleuraUBERON:000240188.49gold quality
tibiaUBERON:000097988.33gold quality
urethraUBERON:000005788.04gold quality
pylorusUBERON:000116687.60gold quality
adrenal tissueUBERON:001830387.55gold quality
upper leg skinUBERON:000426287.53gold quality
synovial jointUBERON:000221787.49gold quality
skeletal muscle tissue of rectus abdominisUBERON:000451187.29gold quality
endothelial cellCL:000011587.18silver quality
stromal cell of endometriumCL:000225587.10gold quality
muscle of legUBERON:000138386.99gold quality
gastrocnemiusUBERON:000138886.93gold quality
superior surface of tongueUBERON:000737186.88gold quality
apex of heartUBERON:000209886.75gold quality
sural nerveUBERON:001548886.75gold quality
right hemisphere of cerebellumUBERON:001489086.73gold quality
skeletal muscle tissue of biceps brachiiUBERON:000450286.56gold quality
cerebellar hemisphereUBERON:000224586.55gold quality
cerebellar cortexUBERON:000212986.54gold quality
spermCL:000001986.44silver quality
descending thoracic aortaUBERON:000234586.42gold quality
germinal epithelium of ovaryUBERON:000130486.36gold quality

Single-cell (SCXA)

Detected in 1 experiment(s), a significant marker in 1.

ExperimentMarker?Max mean expression
E-ANND-3yes5.31

Regulation

Is transcription factor: no

miRNA regulators (miRDB)

211 targeting PDPR, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-4747-5P100.0067.902681
HSA-MIR-5196-5P100.0067.982761
HSA-MIR-4283100.0066.422097
HSA-MIR-4533100.0069.482758
HSA-MIR-4795-3P100.0074.624024
HSA-MIR-513A-5P100.0069.772465
HSA-MIR-4455100.0065.481587
HSA-MIR-450099.9972.722367
HSA-MIR-511-3P99.9968.851467
HSA-MIR-607799.9968.042299
HSA-LET-7A-5P99.9872.291790
HSA-LET-7B-5P99.9872.311790
HSA-LET-7C-5P99.9872.291790
HSA-LET-7E-5P99.9872.291790
HSA-LET-7F-5P99.9872.561784
HSA-LET-7G-5P99.9872.371784
HSA-LET-7I-5P99.9872.371788
HSA-MIR-98-5P99.9872.331787
HSA-MIR-1213699.9872.815713
HSA-MIR-520D-5P99.9873.344883
HSA-MIR-524-5P99.9873.434882
HSA-MIR-569699.9872.364487
HSA-MIR-548P99.9872.253784
HSA-MIR-6888-3P99.9765.951170
HSA-MIR-6825-5P99.9669.813431
HSA-LET-7D-5P99.9671.761632
HSA-MIR-445899.9671.641650
HSA-MIR-6778-3P99.9667.292693
HSA-MIR-3605-5P99.9667.12932
HSA-MIR-4725-3P99.9669.532520

Literature-anchored findings (GeneRIF, showing 1)

  • PDPR Gene Variants Predisposing to Papillary Thyroid Cancer. (PMID:38062777)

Cross-species orthologs

6 orthologs

OrganismSymbolGene ID
danio_reriopdprENSDARG00000103288
mus_musculusPdprENSMUSG00000033624
rattus_norvegicusPdprENSRNOG00000022593
drosophila_melanogasterl(2)37BbFBGN0002021
drosophila_melanogasterCG3270FBGN0033093
caenorhabditis_elegansWBGENE00010847

Paralogs (10): L2HGDH (ENSG00000087299), YPEL3 (ENSG00000090238), YPEL1 (ENSG00000100027), FOXRED1 (ENSG00000110074), YPEL5 (ENSG00000119801), SARDH (ENSG00000123453), DMGDH (ENSG00000132837), AMT (ENSG00000145020), YPEL4 (ENSG00000166793), YPEL2 (ENSG00000175155)

Protein

Protein identifiers

Pyruvate dehydrogenase phosphatase regulatory subunit, mitochondrialQ8NCN5 (reviewed: Q8NCN5)

All UniProt accessions (8): Q8NCN5, A8MT40, B7ZAR9, H3BQG3, H3BRS5, H3BU60, H3BUH3, H3BV59

UniProt curated annotations — full annotation on UniProt →

Function. Decreases the sensitivity of PDP1 to magnesium ions, and this inhibition is reversed by the polyamine spermine.

Subunit / interactions. Heterodimer of a catalytic (PDP1) and a regulatory (PDPR) subunit.

Subcellular location. Mitochondrion matrix.

Similarity. Belongs to the GcvT family.

Isoforms (2)

UniProt IDNamesCanonical?
Q8NCN5-11yes
Q8NCN5-22

RefSeq proteins (6): NP_001309046, NP_001309047, NP_001309048, NP_001408628, NP_001408680, NP_060460* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR001763Rhodanese-like_domDomain
IPR006076FAD-dep_OxRdtaseDomain
IPR006222GCVT_NDomain
IPR013977GcvT_CDomain
IPR027266TrmE/GcvT-likeHomologous_superfamily
IPR028896GcvT/YgfZ/DmdAFamily
IPR029043GcvT/YgfZ_CHomologous_superfamily
IPR032503FAO_MDomain
IPR036188FAD/NAD-bd_sfHomologous_superfamily

Pfam: PF01266, PF01571, PF08669, PF16350

Enzyme classification (BRENDA):

  • EC 3.1.3.43 — [pyruvate dehydrogenase (acetyl-transferring)]-phosphatase (BRENDA: 11 organisms, 19 substrates, 32 inhibitors, 15 Km, 0 kcat entries)

Substrate kinetics (BRENDA)

7 substrates with measured Km, best-characterized 7. Km ranges are aggregated across organisms/conditions.

SubstrateKm (mM)Measurements
[PYRUVATE DEHYDROGENASE (LIPOAMIDE)]-PHOSPHATE0.0029–0.0587
P-NITROPHENYL PHOSPHATE29.3–55.13
PEPTIDE T-10.6251
PEPTIDE T-20.221
PEPTIDE T-30.1061
RRAS(P)VA0.0531
RRAT(P)VA0.0181

UniProt features (17 total): sequence conflict 13, transit peptide 1, chain 1, splice variant 1, sequence variant 1

Structure

Experimental structures (PDB)

2 structures.

PDBMethodResolution (Å)
8FHUX-RAY DIFFRACTION1.8
8FHLX-RAY DIFFRACTION2.19

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-Q8NCN5-F190.740.84

Function

Pathways and Gene Ontology

Reactome pathways

1 pathways

IDPathway
R-HSA-204174Regulation of pyruvate dehydrogenase (PDH) complex

MSigDB gene sets: 122 (showing top): chr16q22, TGCTGCT_MIR15A_MIR16_MIR15B_MIR195_MIR424_MIR497, GOBP_POSITIVE_REGULATION_OF_AMIDE_METABOLIC_PROCESS, GOBP_ORGANOPHOSPHATE_METABOLIC_PROCESS, GOBP_NUCLEOSIDE_PHOSPHATE_BIOSYNTHETIC_PROCESS, GOBP_MONOCARBOXYLIC_ACID_METABOLIC_PROCESS, GOBP_ACETYL_COA_METABOLIC_PROCESS, GOBP_KETONE_METABOLIC_PROCESS, CHANDRAN_METASTASIS_DN, GOBP_ORGANOPHOSPHATE_BIOSYNTHETIC_PROCESS, MONNIER_POSTRADIATION_TUMOR_ESCAPE_UP, GOBP_REGULATION_OF_FATTY_ACID_METABOLIC_PROCESS, GOBP_NUCLEOBASE_CONTAINING_SMALL_MOLECULE_METABOLIC_PROCESS, GOBP_GENERATION_OF_PRECURSOR_METABOLITES_AND_ENERGY, GOBP_REGULATION_OF_LIPID_METABOLIC_PROCESS

GO Biological Process (1): positive regulation of pyruvate decarboxylation to acetyl-CoA (GO:0140176)

GO Molecular Function (1): protein binding (GO:0005515)

GO Cellular Component (4): cytoplasm (GO:0005737), mitochondrion (GO:0005739), mitochondrial matrix (GO:0005759), pyruvate dehydrogenase (lipoamide) phosphatase complex (GO:0045253)

Reactome top-level categories

Rollup of top-1 pathways:

CategoryPathways
Regulation of pyruvate metabolism1

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
cytoplasm2
pyruvate decarboxylation to acetyl-CoA1
regulation of pyruvate decarboxylation to acetyl-CoA1
positive regulation of acetyl-CoA biosynthesis1
binding1
intracellular anatomical structure1
cellular anatomical structure1
intracellular membrane-bounded organelle1
mitochondrion1
intracellular organelle lumen1
protein serine/threonine phosphatase complex1

Protein interactions and networks

STRING

2461 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
PDPRPDP2Q9P2J9633
PDPRPDHA1P08559574
PDPRPDK3Q15120572
PDPRPDHXO00330557
PDPRPDK2Q15119532
PDPRH6PDO95479453
PDPRPHKG1Q16816426
PDPRCNOT1A5YKK6407
PDPRDLATP10515393
PDPRMDH1BQ5I0G3374
PDPRIDH3GP51553373
PDPRPDP1Q9P0J1370
PDPRPDHBP11177368
PDPRCSO75390360
PDPRUBFD1O14562353
PDPRGARTP22102353

IntAct

52 interactions, top by confidence:

ABTypeScore
RAD51DRAD51Cpsi-mi:“MI:0914”(association)0.860
ATP5PBSLC19A2psi-mi:“MI:0914”(association)0.640
NDUFS7NDUFS8psi-mi:“MI:0914”(association)0.640
BPNT1GTPBP10psi-mi:“MI:0914”(association)0.530
PSG8PEX7psi-mi:“MI:0914”(association)0.530
GATCNME4psi-mi:“MI:0914”(association)0.530
TSPYL6NME4psi-mi:“MI:0914”(association)0.530
TSSC4SNRNP200psi-mi:“MI:0914”(association)0.530
PDPRHSPE1psi-mi:“MI:0915”(physical association)0.400
NUDCD1TUBAL3psi-mi:“MI:0914”(association)0.350
CUL3PXDNLpsi-mi:“MI:0914”(association)0.350
DKKL1VWA8psi-mi:“MI:0914”(association)0.350
PCMT1YDJCpsi-mi:“MI:0914”(association)0.350
ACSM5NUDT19psi-mi:“MI:0914”(association)0.350
NIT1NUDT19psi-mi:“MI:0914”(association)0.350
NDUFS7psi-mi:“MI:0914”(association)0.350
TRMT1HDAC3psi-mi:“MI:0914”(association)0.350
TSC22D4TBL1Xpsi-mi:“MI:0914”(association)0.350
SDHBCLPXpsi-mi:“MI:0914”(association)0.350
RARS2PCCApsi-mi:“MI:0914”(association)0.350
ARHGEF26CPT2psi-mi:“MI:0914”(association)0.350
DENND11psi-mi:“MI:0914”(association)0.350
NUDT19psi-mi:“MI:0914”(association)0.350
PDP1PMPCBpsi-mi:“MI:0914”(association)0.350
PFDN5GTPBP10psi-mi:“MI:0914”(association)0.350

BioGRID (122): PDPR (Affinity Capture-RNA), PDPR (Affinity Capture-RNA), PDPR (Affinity Capture-RNA), PDPR (Affinity Capture-RNA), PDPR (Affinity Capture-MS), PDPR (Affinity Capture-MS), PDPR (Affinity Capture-MS), PDPR (Affinity Capture-MS), PDPR (Affinity Capture-MS), PDPR (Affinity Capture-MS), PDPR (Affinity Capture-MS), PDPR (Affinity Capture-MS), PDPR (Affinity Capture-MS), PDPR (Affinity Capture-MS), PDPR (Affinity Capture-MS)

ESM2 similar proteins: A0JPE9, A2AJL3, A2VD33, O46504, O75191, P12276, P12785, P13439, P17256, P19096, P31754, Q08D86, Q0IH28, Q0VFE7, Q3MIF4, Q3SYZ6, Q3TNA1, Q4V831, Q4V9P6, Q503J2, Q566S6, Q5M7T9, Q5R979, Q5RFE6, Q5U5V2, Q5XH07, Q5XIG6, Q5ZMJ4, Q64FG0, Q68FH4, Q6DCD1, Q6DH69, Q6GMR7, Q6GP95, Q6NUM9, Q6NUW9, Q6ZS86, Q71SP7, Q7TSQ8, Q80SY6

Diamond homologs: B3QLF1, O46504, Q3M859, Q63342, Q64380, Q7TSQ8, Q8GAI3, Q8NCN5, Q99LB7, Q9DBT9, Q9UI17, Q9UL12, A0AIE9, A0RIL1, A4IQV5, A5GPL8, A5I9T7, A5IKL0, A6GXW3, A6TMY6, A7FRV3, A7GB83, A7Z6M4, A8MEG4, A9VH12, B0K242, B0KD95, B1HSN7, B1IEV3, B1KWD5, B2UG80, B7GH71, B7HBA0, B7HNZ1, B7IXL4, B7JMV1, B8DFY0, B8FT33, B8GNE2, B9IXL9

SIGNOR signaling

0 interactions.

Disease & clinical

Clinical variants and AI predictions

ClinVar

134 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic0
Likely pathogenic0
Uncertain significance114
Likely benign5
Benign2

Top pathogenic / likely-pathogenic (0)

SpliceAI

3027 predictions. Top by Δscore:

VariantEffectΔscore
16:70127258:A:AGacceptor_gain1.0000
16:70127258:AGGCT:Aacceptor_gain1.0000
16:70127259:G:GGacceptor_gain1.0000
16:70127259:GGCT:Gacceptor_gain1.0000
16:70127259:GGCTG:Gacceptor_gain1.0000
16:70127391:CAGG:Cdonor_loss1.0000
16:70127394:G:GGdonor_gain1.0000
16:70127394:GTA:Gdonor_loss1.0000
16:70127395:T:Gdonor_loss1.0000
16:70128779:TACA:Tacceptor_loss1.0000
16:70128782:A:AGacceptor_gain1.0000
16:70128783:G:GAacceptor_gain1.0000
16:70128866:G:GGdonor_gain1.0000
16:70128870:G:GGdonor_gain1.0000
16:70130415:T:TAacceptor_gain1.0000
16:70130420:CAGGT:Cacceptor_loss1.0000
16:70130421:A:Tacceptor_loss1.0000
16:70130422:G:GAacceptor_loss1.0000
16:70130422:GGT:Gacceptor_gain1.0000
16:70130540:GCCAG:Gdonor_gain1.0000
16:70130542:CAG:Cdonor_loss1.0000
16:70130543:AGG:Adonor_loss1.0000
16:70130544:GGTA:Gdonor_loss1.0000
16:70130545:G:GAdonor_loss1.0000
16:70130546:T:Adonor_loss1.0000
16:70132119:A:AGacceptor_gain1.0000
16:70132120:C:Gacceptor_gain1.0000
16:70132126:A:AGacceptor_gain1.0000
16:70132127:C:Gacceptor_gain1.0000
16:70132131:A:AGacceptor_gain1.0000

AlphaMissense

5799 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
16:70139006:G:CR433P1.000
16:70146149:G:AG628D1.000
16:70153455:G:AG706E1.000
16:70142282:G:CR455T0.999
16:70142282:G:TR455M0.999
16:70142283:G:CR455S0.999
16:70142283:G:TR455S0.999
16:70142597:T:AW506R0.999
16:70142597:T:CW506R0.999
16:70142647:T:GC522W0.999
16:70142649:T:AV523D0.999
16:70142654:G:CD525H0.999
16:70142661:C:TS527F0.999
16:70143633:A:CS577R0.999
16:70143635:C:AS577R0.999
16:70143635:C:GS577R0.999
16:70146148:G:CG628R0.999
16:70146149:G:TG628V0.999
16:70148527:G:AG676R0.999
16:70148527:G:CG676R0.999
16:70148528:G:AG676E0.999
16:70153427:G:CG697R0.999
16:70153428:G:AG697D0.999
16:70153428:G:TG697V0.999
16:70153454:G:AG706R0.999
16:70153454:G:CG706R0.999
16:70153454:G:TG706W0.999
16:70153455:G:TG706V0.999
16:70156676:T:CC813R0.999
16:70156678:C:GC813W0.999

dbSNP variants (sampled 300 via entrez): RS1000182830 (16:70152394 C>A,T), RS1000248469 (16:70116553 A>G,T), RS1000298414 (16:70158077 G>A,T), RS1000316774 (16:70162402 G>C,T), RS1000435316 (16:70158272 C>T), RS1000464996 (16:70151520 T>G), RS1000503197 (16:70154291 G>A), RS1000568021 (16:70136903 T>C), RS1000586943 (16:70162180 G>A), RS1000604206 (16:70150257 C>T), RS1000659066 (16:70163780 G>A,C), RS1000678171 (16:70122225 G>T), RS1000734775 (16:70150418 C>A,G,T), RS1000850546 (16:70115470 G>A), RS1000852674 (16:70154142 C>G,T)

Disease associations

OMIM: gene MIM:617835 | disease phenotypes: MIM:213300

GenCC curated gene-disease

Mondo (1): Joubert syndrome (MONDO:0018772)

Orphanet (1): Isolated Joubert syndrome (Orphanet:475)

HPO phenotypes

0 total (0 of 0 shown, HPO-id order):

GWAS associations

1 associations (top):

StudyTraitp-value
GCST010703_100Brain morphology (MOSTest)2.000000e-40

EFO canonical traits (1, from GWAS)

EFO IDTrait name
EFO:0004346neuroimaging measurement

Drugs & pharmacology

Drug and pharmacology data

Is drug target: no

PharmGKB: 1 entry (VIP=true, CPIC=false)

CTD chemical–gene interactions

32 total (human), top 30 by PubMed support.

ChemicalActions (top 5)PubMed papers
Air Pollutantsdecreases expression, affects cotreatment, increases abundance2
Cisplatindecreases expression, increases expression2
aristolochic acid Iincreases expression1
dicrotophosincreases expression1
triphenyl phosphateaffects expression1
alpha-pineneaffects cotreatment, decreases expression, increases abundance1
bisphenol Adecreases expression1
deoxynivalenoldecreases expression1
arseniteaffects binding, decreases reaction1
acipimoxincreases expression1
methacrylaldehydeaffects cotreatment, decreases expression, increases abundance1
beta-methylcholineaffects expression1
perfluorooctane sulfonic acidincreases expression1
2-palmitoylglycerolincreases expression1
4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamideaffects cotreatment, decreases expression1
2-(1H-indazol-4-yl)-6-(4-methanesulfonylpiperazin-1-ylmethyl)-4-morpholin-4-ylthieno(3,2-d)pyrimidineincreases response to substance, increases expression1
bisphenol Saffects expression1
LDN 193189affects cotreatment, decreases expression1
bisphenol AFdecreases expression1
Temozolomideincreases expression1
Acroleindecreases expression, increases abundance, affects cotreatment1
Arsenicaffects methylation1
Benzo(a)pyreneincreases methylation1
Cadmiumincreases abundance, decreases expression1
Doxorubicindecreases expression1
Ivermectindecreases expression1
Methyl Methanesulfonateincreases expression1
Ozoneaffects cotreatment, decreases expression, increases abundance1
Gold Compoundsincreases expression1
Antirheumatic Agentsincreases expression1

Clinical trials (associated diseases)

3 trials via MONDO — disease-level, not drug-specific.

TrialPhaseStatusTitle
NCT00873678Not specifiedCOMPLETEDAssessment of the Prevalence of Genes AHI1, NPHP1 and CEP290 in Joubert Syndrome
NCT01401998Not specifiedRECRUITINGARPKD Database Study
NCT04874909Not specifiedCOMPLETEDClassification, Functional Stratification and Biomarkers in Ciliopathy (CILLICORIRCM)
  • Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): Joubert syndrome