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Protein

Pyruvate dehydrogenase E1 component subunit alpha, somatic form, mitochondrial

Gene

PDHA1

Organism
Pongo abelii (Sumatran orangutan) (Pongo pygmaeus abelii)
Status
Reviewed-Annotation score: -Experimental evidence at transcript 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

Keywordsi

Molecular functionOxidoreductase
Biological processCarbohydrate metabolism, Glucose metabolism, Tricarboxylic acid cycle
LigandPyruvate, 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
OrganismiPongo abelii (Sumatran orangutan) (Pongo pygmaeus abelii)
Taxonomic identifieri9601 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaePongo
Proteomesi
  • UP000001595 Componenti: Unplaced

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Mitochondrion

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transit peptidei1 – 29MitochondrionBy similarityAdd BLAST29
ChainiPRO_000002044430 – 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 residuei232Phosphoserine; by PDK1By similarity1
Modified residuei244N6-acetyllysine; alternateBy similarity1
Modified residuei244N6-succinyllysine; alternateBy similarity1
Modified residuei277N6-succinyllysineBy similarity1
Modified residuei293Phosphoserine; by PDK1, PDK2, PDK3 and PDK4By similarity1
Modified residuei295PhosphoserineBy similarity1
Modified residuei300Phosphoserine; by PDK1, PDK2, PDK3 and PDK4By similarity1
Modified residuei301PhosphotyrosineBy similarity1
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 (By similarity).By similarity
Acetylation alters the phosphorylation pattern. Deacetylated by SIRT3 (By similarity).By similarity

Keywords - PTMi

Acetylation, Phosphoprotein

Proteomic databases

PRIDEiQ5R490

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

STRINGi9601.ENSPPYP00000022568

Structurei

3D structure databases

ProteinModelPortaliQ5R490
SMRiQ5R490
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Keywords - Domaini

Transit peptide

Phylogenomic databases

eggNOGiKOG0225 Eukaryota
COG1071 LUCA
HOVERGENiHBG001863
InParanoidiQ5R490
KOiK00161

Family and domain databases

InterProiView protein in InterPro
IPR001017 DH_E1
IPR017597 Pyrv_DH_E1_asu_subgrp-y
IPR029061 THDP-binding
PfamiView protein in Pfam
PF00676 E1_dh, 1 hit
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.

Q5R490-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MRKMLAAVSR VLSGASQKPA SRVLVASRNF ANDATFEIKK CDLHRLEEGP
60 70 80 90 100
PVTTVLTRED GLKYYRMMQT VRRMELKADQ LYKQKIIRGF CHLCDGQEAC
110 120 130 140 150
CVGLEAGINP TDHLITAYRA HGFTFTRGLS VREILAELTG RKGGCAKGKG
160 170 180 190 200
GSMHMYAKNF YGGNGIVGAQ VPLGAGIALA CKYNGKDEVC LTLYGDGAAN
210 220 230 240 250
QGQIFGAYNM AALWKLPCIF ICENNRYGMG TSVERAAAST DYYKRGDFIP
260 270 280 290 300
GLRVDGMDIL CVREATRFAA 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):43,224
Last modified:December 21, 2004 - v1
Checksum:i4C0A5ADD25CB2D49
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CR861366 mRNA Translation: CAH93426.1
RefSeqiNP_001127663.1, NM_001134191.1

Genome annotation databases

GeneIDi100174745
KEGGipon:100174745

Similar proteinsi

Entry informationi

Entry nameiODPA_PONAB
AccessioniPrimary (citable) accession number: Q5R490
Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 12, 2005
Last sequence update: December 21, 2004
Last modified: May 23, 2018
This is version 76 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

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