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Protein

Pyruvate dehydrogenase E1 component subunit alpha, somatic form, mitochondrial

Gene

Pdha1

Organism
Rattus norvegicus (Rat)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

The pyruvate dehydrogenase complex catalyzes the overall conversion of pyruvate to acetyl-CoA and CO2, and thereby links the glycolytic pathway to the tricarboxylic cycle.By similarity

Catalytic activityi

Pyruvate + [dihydrolipoyllysine-residue acetyltransferase] lipoyllysine = [dihydrolipoyllysine-residue acetyltransferase] S-acetyldihydrolipoyllysine + CO2.

Cofactori

Enzyme regulationi

Pyruvate dehydrogenase activity is inhibited by phosphorylation of PDHA1; it is reactivated by dephosphorylation.By similarity

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Carbohydrate metabolism, Glucose metabolism, Tricarboxylic acid cycle

Keywords - Ligandi

Pyruvate, Thiamine pyrophosphate

Names & Taxonomyi

Protein namesi
Recommended name:
Pyruvate dehydrogenase E1 component subunit alpha, somatic form, mitochondrial (EC:1.2.4.1)
Alternative name(s):
PDHE1-A type I
Gene namesi
Name:Pdha1
OrganismiRattus norvegicus (Rat)
Taxonomic identifieri10116 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaSciurognathiMuroideaMuridaeMurinaeRattus
Proteomesi
  • UP000002494 Componenti: Unplaced

Organism-specific databases

RGDi3286. Pdha1.

Subcellular locationi

GO - Cellular componenti

  • mitochondrial pyruvate dehydrogenase complex Source: RGD
  • mitochondrion Source: RGD
  • pyruvate dehydrogenase complex Source: RGD
Complete GO annotation...

Keywords - Cellular componenti

Mitochondrion

Pathology & Biotechi

Chemistry databases

ChEMBLiCHEMBL2176823.

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transit peptidei1 – 29MitochondrionBy similarityAdd BLAST29
ChainiPRO_000002044530 – 390Pyruvate dehydrogenase E1 component subunit alpha, somatic form, mitochondrialAdd BLAST361

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei63N6-acetyllysine; alternateBy similarity1
Modified residuei63N6-succinyllysine; alternateBy similarity1
Modified residuei231PhosphothreonineCombined sources1
Modified residuei232Phosphoserine; by PDK1Combined sources1 Publication1
Modified residuei244N6-acetyllysine; alternateBy similarity1
Modified residuei244N6-succinyllysine; alternateBy similarity1
Modified residuei267N6-acetyllysineBy similarity1
Modified residuei277N6-succinyllysineBy similarity1
Modified residuei293Phosphoserine; by PDK1, PDK2, PDK3 and PDK4Combined sources1 Publication1
Modified residuei295PhosphoserineBy similarity1
Modified residuei300Phosphoserine; by PDK1, PDK2, PDK3 and PDK4Combined sources1 Publication1
Modified residuei301PhosphotyrosineCombined sources1
Modified residuei313N6-acetyllysine; alternateBy similarity1
Modified residuei313N6-succinyllysine; alternateBy similarity1
Modified residuei321N6-acetyllysineBy similarity1
Modified residuei336N6-acetyllysineBy similarity1
Modified residuei385N6-succinyllysineBy similarity1

Post-translational modificationi

Phosphorylation at Ser-232, Ser-293 and Ser-300 by PDK family kinases inactivates the enzyme; for this phosphorylation at a single site is sufficient. Phosphorylation at Ser-293 interferes with access to active site, and thereby inactivates the enzyme. Dephosphorylation at all three sites, i.e. at Ser-232, Ser-293 and Ser-300, is required for reactivation.1 Publication
Acetylation alters the phosphorylation pattern. Deacetylated by SIRT3 (By similarity).By similarity

Keywords - PTMi

Acetylation, Phosphoprotein

Proteomic databases

PaxDbiP26284.
PRIDEiP26284.

2D gel databases

World-2DPAGE0004:P26284.

PTM databases

iPTMnetiP26284.
PhosphoSitePlusiP26284.

Expressioni

Tissue specificityi

In all tissues, but in very low amount in testis.1 Publication

Interactioni

Subunit structurei

Heterotetramer of two PDHA1 and two PDHB subunits. The heterotetramer interacts with DLAT, and is part of the multimeric pyruvate dehydrogenase complex that contains multiple copies of pyruvate dehydrogenase (E1), dihydrolipoamide acetyltransferase (DLAT, E2) and lipoamide dehydrogenase (DLD, E3). These subunits are bound to an inner core composed of about 48 DLAT and 12 PDHX molecules (By similarity).By similarity

Protein-protein interaction databases

STRINGi10116.ENSRNOP00000030279.

Structurei

3D structure databases

ProteinModelPortaliP26284.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Keywords - Domaini

Transit peptide

Phylogenomic databases

eggNOGiKOG0225. Eukaryota.
COG1071. LUCA.
HOGENOMiHOG000281336.
HOVERGENiHBG001863.
InParanoidiP26284.
PhylomeDBiP26284.

Family and domain databases

Gene3Di3.40.50.970. 1 hit.
InterProiIPR001017. DH_E1.
IPR017597. Pyrv_DH_E1_asu_subgrp-y.
IPR029061. THDP-binding.
[Graphical view]
PfamiPF00676. E1_dh. 1 hit.
[Graphical view]
SUPFAMiSSF52518. SSF52518. 1 hit.
TIGRFAMsiTIGR03182. PDH_E1_alph_y. 1 hit.

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P26284-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MRKMLAAVSR VLAGAAQKPA SRVLVASRNF ANDATFEIKK CDLHRLEEGP
60 70 80 90 100
PVTTVLTRED GLKYYRMMQT VRRMELKADQ LYKQKIIRGF CHLCDGQEAC
110 120 130 140 150
CVGLEAGINP TDHLITAYRA HGFTFNRGHA VRAILAELTG RRGGCAKGKG
160 170 180 190 200
GSMHMYAKNF YGGNGIVGAQ VPLGAGIALA CKYNGKDEVC LTLYGDGAAN
210 220 230 240 250
QGQIFEAYNM AALWKLPCIF ICENNRYGMG TSVERAAAST DYYKRGDFIP
260 270 280 290 300
GLRVDGMDIL CVREATKFAA AYCRSGKGPI LMELQTYRYH GHSMSDPGVS
310 320 330 340 350
YRTREEIQEV RSKSDPIMLL KDRMVNSNLA SVEELKEIDV EVRKEIEDAA
360 370 380 390
QFATADPEPP LEELGYHIYS SDPPFEVRGA NQWIKFKSVS
Length:390
Mass (Da):43,227
Last modified:December 12, 2006 - v2
Checksum:i254B5A801E750DC0
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti10R → H in CAA78146 (PubMed:8158120).Curated1
Sequence conflicti126N → T in CAA78146 (PubMed:8158120).Curated1
Sequence conflicti129 – 130HA → LP in CAA78146 (PubMed:8158120).Curated2
Sequence conflicti134I → V (PubMed:2025639).Curated1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Z12158 mRNA. Translation: CAA78146.1.
PIRiS15891. DERTPA.
S21553. DERTP1.
UniGeneiRn.3655.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Z12158 mRNA. Translation: CAA78146.1.
PIRiS15891. DERTPA.
S21553. DERTP1.
UniGeneiRn.3655.

3D structure databases

ProteinModelPortaliP26284.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi10116.ENSRNOP00000030279.

Chemistry databases

ChEMBLiCHEMBL2176823.

PTM databases

iPTMnetiP26284.
PhosphoSitePlusiP26284.

2D gel databases

World-2DPAGE0004:P26284.

Proteomic databases

PaxDbiP26284.
PRIDEiP26284.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Organism-specific databases

RGDi3286. Pdha1.

Phylogenomic databases

eggNOGiKOG0225. Eukaryota.
COG1071. LUCA.
HOGENOMiHOG000281336.
HOVERGENiHBG001863.
InParanoidiP26284.
PhylomeDBiP26284.

Miscellaneous databases

PROiP26284.

Family and domain databases

Gene3Di3.40.50.970. 1 hit.
InterProiIPR001017. DH_E1.
IPR017597. Pyrv_DH_E1_asu_subgrp-y.
IPR029061. THDP-binding.
[Graphical view]
PfamiPF00676. E1_dh. 1 hit.
[Graphical view]
SUPFAMiSSF52518. SSF52518. 1 hit.
TIGRFAMsiTIGR03182. PDH_E1_alph_y. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiODPA_RAT
AccessioniPrimary (citable) accession number: P26284
Entry historyi
Integrated into UniProtKB/Swiss-Prot: May 1, 1992
Last sequence update: December 12, 2006
Last modified: November 2, 2016
This is version 125 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Direct protein sequencing, Reference proteome

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.