ID D4GNE5_PANAM Unreviewed; 616 AA.
AC D4GNE5;
DT 18-MAY-2010, integrated into UniProtKB/TrEMBL.
DT 18-MAY-2010, sequence version 1.
DT 27-MAR-2024, entry version 54.
DE RecName: Full=Pyruvate dehydrogenase [ubiquinone] {ECO:0000256|HAMAP-Rule:MF_00850};
DE EC=1.2.5.1 {ECO:0000256|HAMAP-Rule:MF_00850};
DE AltName: Full=Pyruvate oxidase {ECO:0000256|HAMAP-Rule:MF_00850};
DE Short=POX {ECO:0000256|HAMAP-Rule:MF_00850};
DE AltName: Full=Pyruvate:ubiquinone-8 oxidoreductase {ECO:0000256|HAMAP-Rule:MF_00850};
GN Name=poxB {ECO:0000256|HAMAP-Rule:MF_00850,
GN ECO:0000313|EMBL:ADD76496.1};
GN OrderedLocusNames=PANA_1329 {ECO:0000313|EMBL:ADD76496.1};
OS Pantoea ananatis (strain LMG 20103).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Erwiniaceae; Pantoea.
OX NCBI_TaxID=706191 {ECO:0000313|EMBL:ADD76496.1, ECO:0000313|Proteomes:UP000001702};
RN [1] {ECO:0000313|EMBL:ADD76496.1, ECO:0000313|Proteomes:UP000001702}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=LMG 20103 {ECO:0000313|EMBL:ADD76496.1,
RC ECO:0000313|Proteomes:UP000001702};
RX PubMed=20348253; DOI=10.1128/JB.00060-10;
RA De Maayer P., Chan W.Y., Venter S.N., Toth I.K., Birch P.R., Joubert F.,
RA Coutinho T.A.;
RT "Genome sequence of Pantoea ananatis LMG20103, the causative agent of
RT Eucalyptus blight and dieback.";
RL J. Bacteriol. 192:2936-2937(2010).
CC -!- FUNCTION: A peripheral cell membrane enzyme that catalyzes the
CC oxidative decarboxylation of pyruvate to form acetate and CO(2). It
CC channels electrons from the cytoplasm to the respiratory chain at the
CC cell membrane via ubiquinone. {ECO:0000256|HAMAP-Rule:MF_00850}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a ubiquinone + H2O + pyruvate = a ubiquinol + acetate + CO2;
CC Xref=Rhea:RHEA:27405, Rhea:RHEA-COMP:9565, Rhea:RHEA-COMP:9566,
CC ChEBI:CHEBI:15361, ChEBI:CHEBI:15377, ChEBI:CHEBI:16389,
CC ChEBI:CHEBI:16526, ChEBI:CHEBI:17976, ChEBI:CHEBI:30089; EC=1.2.5.1;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00850};
CC -!- COFACTOR:
CC Name=FAD; Xref=ChEBI:CHEBI:57692;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00850};
CC Note=Binds 1 FAD per subunit. {ECO:0000256|HAMAP-Rule:MF_00850};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00850};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000256|HAMAP-Rule:MF_00850};
CC -!- COFACTOR:
CC Name=thiamine diphosphate; Xref=ChEBI:CHEBI:58937;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00850};
CC Note=Binds 1 thiamine pyrophosphate per subunit. {ECO:0000256|HAMAP-
CC Rule:MF_00850};
CC -!- ACTIVITY REGULATION: The C-terminus inhibits activity; it has to move
CC for the enzyme to be active. Activated by lipid-binding, which occurs
CC via the C-terminus. {ECO:0000256|HAMAP-Rule:MF_00850}.
CC -!- SUBUNIT: Homotetramer. {ECO:0000256|HAMAP-Rule:MF_00850}.
CC -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000256|HAMAP-
CC Rule:MF_00850}; Peripheral membrane protein {ECO:0000256|HAMAP-
CC Rule:MF_00850}; Cytoplasmic side {ECO:0000256|HAMAP-Rule:MF_00850}.
CC -!- DOMAIN: Has 4 domains; the Pyr domain which binds the pyrimidine moiety
CC of the thiamine pyrophosphate cofactor, the FAD-binding domain, the PP-
CC binding domain which binds the pyrophosphate portion of thiamine
CC pyrophosphate and the C-terminal membrane binding region. The C-
CC terminus is held closely against the rest of the protein and covers the
CC active site; during activation it unfolds from the rest of the protein
CC and forms an amphipathic helix upon membrane binding, exposing the
CC active site. {ECO:0000256|HAMAP-Rule:MF_00850}.
CC -!- SIMILARITY: Belongs to the TPP enzyme family.
CC {ECO:0000256|ARBA:ARBA00007812, ECO:0000256|HAMAP-Rule:MF_00850,
CC ECO:0000256|RuleBase:RU362132}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00850}.
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DR EMBL; CP001875; ADD76496.1; -; Genomic_DNA.
DR AlphaFoldDB; D4GNE5; -.
DR STRING; 706191.PANA_1329; -.
DR KEGG; pam:PANA_1329; -.
DR eggNOG; COG0028; Bacteria.
DR HOGENOM; CLU_013748_3_0_6; -.
DR Proteomes; UP000001702; Chromosome.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:UniProtKB-UniRule.
DR GO; GO:0008289; F:lipid binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0052737; F:pyruvate dehydrogenase (quinone) activity; IEA:UniProtKB-UniRule.
DR GO; GO:0030976; F:thiamine pyrophosphate binding; IEA:UniProtKB-UniRule.
DR GO; GO:0048039; F:ubiquinone binding; IEA:UniProtKB-UniRule.
DR GO; GO:0042867; P:pyruvate catabolic process; IEA:UniProtKB-UniRule.
DR CDD; cd02014; TPP_POX; 1.
DR CDD; cd07039; TPP_PYR_POX; 1.
DR Gene3D; 3.40.50.970; -; 2.
DR Gene3D; 3.40.50.1220; TPP-binding domain; 1.
DR HAMAP; MF_00850; POX; 1.
DR InterPro; IPR029035; DHS-like_NAD/FAD-binding_dom.
DR InterPro; IPR047211; POXB-like.
DR InterPro; IPR044261; Pyruvate_dehydrogenase.
DR InterPro; IPR029061; THDP-binding.
DR InterPro; IPR012000; Thiamin_PyroP_enz_cen_dom.
DR InterPro; IPR012001; Thiamin_PyroP_enz_TPP-bd_dom.
DR InterPro; IPR011766; TPP_enzyme_TPP-bd.
DR InterPro; IPR047212; TPP_POXB-like.
DR InterPro; IPR047210; TPP_PYR_POXB-like.
DR PANTHER; PTHR42981; PYRUVATE DEHYDROGENASE [UBIQUINONE]; 1.
DR PANTHER; PTHR42981:SF2; PYRUVATE DEHYDROGENASE [UBIQUINONE]; 1.
DR Pfam; PF02775; TPP_enzyme_C; 1.
DR Pfam; PF00205; TPP_enzyme_M; 1.
DR Pfam; PF02776; TPP_enzyme_N; 1.
DR SUPFAM; SSF52467; DHS-like NAD/FAD-binding domain; 1.
DR SUPFAM; SSF52518; Thiamin diphosphate-binding fold (THDP-binding); 2.
PE 3: Inferred from homology;
KW Cell inner membrane {ECO:0000256|HAMAP-Rule:MF_00850};
KW Cell membrane {ECO:0000256|HAMAP-Rule:MF_00850};
KW FAD {ECO:0000256|HAMAP-Rule:MF_00850};
KW Flavoprotein {ECO:0000256|HAMAP-Rule:MF_00850};
KW Lipid-binding {ECO:0000256|HAMAP-Rule:MF_00850};
KW Magnesium {ECO:0000256|HAMAP-Rule:MF_00850};
KW Membrane {ECO:0000256|HAMAP-Rule:MF_00850};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_00850};
KW Nucleotide-binding {ECO:0000256|HAMAP-Rule:MF_00850};
KW Oxidoreductase {ECO:0000256|HAMAP-Rule:MF_00850};
KW Pyruvate {ECO:0000256|HAMAP-Rule:MF_00850};
KW Reference proteome {ECO:0000313|Proteomes:UP000001702};
KW Thiamine pyrophosphate {ECO:0000256|HAMAP-Rule:MF_00850,
KW ECO:0000256|RuleBase:RU362132};
KW Ubiquinone {ECO:0000256|HAMAP-Rule:MF_00850}.
FT DOMAIN 23..135
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 211..338
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 399..545
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
FT REGION 202..353
FT /note="FAD-binding domain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00850"
FT REGION 551..592
FT /note="Membrane-binding domain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00850"
FT BINDING 69
FT /ligand="thiamine diphosphate"
FT /ligand_id="ChEBI:CHEBI:58937"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00850"
FT BINDING 270..273
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00850"
FT BINDING 293..297
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00850"
FT BINDING 311
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00850"
FT BINDING 426..428
FT /ligand="thiamine diphosphate"
FT /ligand_id="ChEBI:CHEBI:58937"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00850"
FT BINDING 453..455
FT /ligand="thiamine diphosphate"
FT /ligand_id="ChEBI:CHEBI:58937"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00850"
FT BINDING 453
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00850"
FT BINDING 480..486
FT /ligand="thiamine diphosphate"
FT /ligand_id="ChEBI:CHEBI:58937"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00850"
FT BINDING 480
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00850"
FT SITE 485
FT /note="Moves into active site upon enzyme activation, plays
FT a role in electron transfer"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00850"
SQ SEQUENCE 616 AA; 66339 MW; C79E6859212DE4CA CRC64;
MSCLILLSGG WRRMTKEKKM KQTVAALVAK TLENAGVKRI WGVTGDSLNG LSDSLNRMGT
IEWMPTRHEE VAAFSAGAEA HVSGELAVCA GSCGPGNLHL INGLFDCHRN RVPVLAIAAH
IPSSEIGSGY FQETHPQELF RECSHYCELV SNPEQLPQVL GIAMRKAILN RGVSVVVLPG
DVALQAAPES ARADWYPPQL PLVLPSADEL TTLAQTLNDA KNITLMCGSG CAGAHREVVE
LAATLKAPVV HALRGKEHIE YDNPYDVGMT GLIGFSSGYH AMMNADTLVL LGTQFPYRAF
YPENAKIIQL DINPGSLGSH CHVDQAYIGD VKTTLRALLP KLQVKTEQRH LDSALKHYAE
ARKDLDSLAT ANDNQPIHPQ YVAQQISQLA DDDAIFTCDV GTPTVWAARY LKMNGKRRLL
GSFNHGSMAN AMPQAMGAQS LNRDRQVVAL CGDGGFSMLM GDFLTVAQLK LPVKLVIFNN
SSLGFVAMEM KAGGYLTDGT DLHNPDFAAI AQACGVKGIR VEKASELNGA LEQAFAHDGP
VLVDVITAKE ELAMPPEIKL EQAKGFSLYM LRAVINGRGD EVLELAKNQL AAVKQTDVTG
GFSARLAFCC PGAQCD
//
