DLDH_BUCAI
ID DLDH_BUCAI Reviewed; 473 AA.
AC P57303;
DT 01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT 01-DEC-2000, sequence version 1.
DT 03-AUG-2022, entry version 132.
DE RecName: Full=Dihydrolipoyl dehydrogenase;
DE EC=1.8.1.4;
DE AltName: Full=Dihydrolipoamide dehydrogenase;
DE AltName: Full=E3 component of pyruvate and 2-oxoglutarate dehydrogenases complexes;
GN Name=lpdA; OrderedLocusNames=BU207;
OS Buchnera aphidicola subsp. Acyrthosiphon pisum (strain APS) (Acyrthosiphon
OS pisum symbiotic bacterium).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Erwiniaceae; Buchnera.
OX NCBI_TaxID=107806;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=APS;
RX PubMed=10993077; DOI=10.1038/35024074;
RA Shigenobu S., Watanabe H., Hattori M., Sakaki Y., Ishikawa H.;
RT "Genome sequence of the endocellular bacterial symbiont of aphids Buchnera
RT sp. APS.";
RL Nature 407:81-86(2000).
CC -!- FUNCTION: Lipoamide dehydrogenase is a component of the alpha-ketoacid
CC dehydrogenase complexes. {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(R)-N(6)-dihydrolipoyl-L-lysyl-[protein] + NAD(+) = (R)-N(6)-
CC lipoyl-L-lysyl-[protein] + H(+) + NADH; Xref=Rhea:RHEA:15045,
CC Rhea:RHEA-COMP:10474, Rhea:RHEA-COMP:10475, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:57540, ChEBI:CHEBI:57945, ChEBI:CHEBI:83099,
CC ChEBI:CHEBI:83100; EC=1.8.1.4;
CC -!- COFACTOR:
CC Name=FAD; Xref=ChEBI:CHEBI:57692; Evidence={ECO:0000250};
CC Note=Binds 1 FAD per subunit. {ECO:0000250};
CC -!- SUBUNIT: Homodimer. {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC -!- MISCELLANEOUS: The active site is a redox-active disulfide bond.
CC {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the class-I pyridine nucleotide-disulfide
CC oxidoreductase family. {ECO:0000305}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; BA000003; BAB12924.1; -; Genomic_DNA.
DR RefSeq; NP_240038.1; NC_002528.1.
DR RefSeq; WP_009874164.1; NC_002528.1.
DR AlphaFoldDB; P57303; -.
DR SMR; P57303; -.
DR STRING; 107806.10038889; -.
DR EnsemblBacteria; BAB12924; BAB12924; BAB12924.
DR KEGG; buc:BU207; -.
DR PATRIC; fig|107806.10.peg.218; -.
DR eggNOG; COG1249; Bacteria.
DR HOGENOM; CLU_016755_0_3_6; -.
DR OMA; HMVGDRM; -.
DR Proteomes; UP000001806; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0004148; F:dihydrolipoyl dehydrogenase activity; IEA:UniProtKB-EC.
DR GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:InterPro.
DR GO; GO:0045454; P:cell redox homeostasis; IEA:InterPro.
DR GO; GO:0006096; P:glycolytic process; IEA:UniProtKB-KW.
DR Gene3D; 3.30.390.30; -; 1.
DR Gene3D; 3.50.50.60; -; 2.
DR InterPro; IPR036188; FAD/NAD-bd_sf.
DR InterPro; IPR023753; FAD/NAD-binding_dom.
DR InterPro; IPR016156; FAD/NAD-linked_Rdtase_dimer_sf.
DR InterPro; IPR006258; Lipoamide_DH.
DR InterPro; IPR001100; Pyr_nuc-diS_OxRdtase.
DR InterPro; IPR004099; Pyr_nucl-diS_OxRdtase_dimer.
DR InterPro; IPR012999; Pyr_OxRdtase_I_AS.
DR Pfam; PF07992; Pyr_redox_2; 1.
DR Pfam; PF02852; Pyr_redox_dim; 1.
DR PIRSF; PIRSF000350; Mercury_reductase_MerA; 1.
DR SUPFAM; SSF51905; SSF51905; 1.
DR SUPFAM; SSF55424; SSF55424; 1.
DR TIGRFAMs; TIGR01350; lipoamide_DH; 1.
DR PROSITE; PS00076; PYRIDINE_REDOX_1; 1.
PE 3: Inferred from homology;
KW Cytoplasm; Disulfide bond; FAD; Flavoprotein; Glycolysis; NAD;
KW Oxidoreductase; Redox-active center; Reference proteome.
FT CHAIN 1..473
FT /note="Dihydrolipoyl dehydrogenase"
FT /id="PRO_0000068019"
FT ACT_SITE 445
FT /note="Proton acceptor"
FT /evidence="ECO:0000250"
FT BINDING 36..45
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250"
FT BINDING 54
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250"
FT BINDING 117
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250"
FT BINDING 182..186
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000250"
FT BINDING 205
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000250"
FT BINDING 270..273
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000250"
FT BINDING 313
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250"
FT BINDING 321
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250"
FT DISULFID 45..50
FT /note="Redox-active"
FT /evidence="ECO:0000250"
SQ SEQUENCE 473 AA; 51955 MW; E851CEE0105E1C5D CRC64;
MNKKIYTQVV VIGSGPAGYS AAFRCADLGL DTVLIERYDK LGGVCLNVGC IPSKTLLHIA
KVIKEAKELH KTGVSFNKPD IDIKKIKNWK QHIVNKLTDG LSSMRKKRKI RIFQGHAIFE
TDKSLCVTNT EDKFTIFFDN AIIATGSKPI KIPSIPHDDI RIWDSTDALS LKKIPNNFLI
IGSGIIGLEM ATIYSALGSK VDIIDRFNHF LPVIDEDISS IYKKSINQQF NLMLNTHIDK
VEVKKDALIV DMIHENIPKK NILYDAVLVA IGRTPNIDSL GLDRIGLKIN NFGFIQVNNQ
LKTNIPHIYA IGDVAGTPML AHKGVHEGHI AAEVISGKNH YFEPKVIPSI AYTDPEIAWV
GLSEKEAKQE NINYEVAIFP WNASGRAIAS NCSIGKTKLI FNKQNNKIIG GSIVGSNAGE
LIGEVGLAIE MGCDAEDIAL TIHAHPTLSE SIGLSAEVFQ GTVTDVLNFK LNK
