ID   ODO2_RICPR              Reviewed;         401 AA.
AC   Q9ZDY4;
DT   30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-1999, sequence version 1.
DT   27-MAR-2024, entry version 136.
DE   RecName: Full=Dihydrolipoyllysine-residue succinyltransferase component of 2-oxoglutarate dehydrogenase complex;
DE            EC=2.3.1.61 {ECO:0000250|UniProtKB:P0AFG6};
DE   AltName: Full=2-oxoglutarate dehydrogenase complex component E2;
DE            Short=OGDC-E2;
DE   AltName: Full=Dihydrolipoamide succinyltransferase component of 2-oxoglutarate dehydrogenase complex;
GN   Name=sucB; OrderedLocusNames=RP179;
OS   Rickettsia prowazekii (strain Madrid E).
OC   Bacteria; Pseudomonadota; Alphaproteobacteria; Rickettsiales;
OC   Rickettsiaceae; Rickettsieae; Rickettsia; typhus group.
OX   NCBI_TaxID=272947;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Madrid E;
RX   PubMed=9823893; DOI=10.1038/24094;
RA   Andersson S.G.E., Zomorodipour A., Andersson J.O., Sicheritz-Ponten T.,
RA   Alsmark U.C.M., Podowski R.M., Naeslund A.K., Eriksson A.-S., Winkler H.H.,
RA   Kurland C.G.;
RT   "The genome sequence of Rickettsia prowazekii and the origin of
RT   mitochondria.";
RL   Nature 396:133-140(1998).
CC   -!- FUNCTION: E2 component of the 2-oxoglutarate dehydrogenase (OGDH)
CC       complex which catalyzes the second step in the conversion of 2-
CC       oxoglutarate to succinyl-CoA and CO(2). {ECO:0000250|UniProtKB:P0AFG6}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=N(6)-[(R)-dihydrolipoyl]-L-lysyl-[2-oxoglutarate dehydrogenase
CC         complex component E2] + succinyl-CoA = CoA + N(6)-[(R)-S(8)-
CC         succinyldihydrolipoyl]-L-lysyl-[2-oxoglutarate dehydrogenase complex
CC         component E2]; Xref=Rhea:RHEA:15213, Rhea:RHEA-COMP:10581, Rhea:RHEA-
CC         COMP:10582, ChEBI:CHEBI:57287, ChEBI:CHEBI:57292, ChEBI:CHEBI:83100,
CC         ChEBI:CHEBI:83120; EC=2.3.1.61;
CC         Evidence={ECO:0000250|UniProtKB:P0AFG6};
CC   -!- COFACTOR:
CC       Name=(R)-lipoate; Xref=ChEBI:CHEBI:83088; Evidence={ECO:0000250};
CC       Note=Binds 1 lipoyl cofactor covalently. {ECO:0000250};
CC   -!- PATHWAY: Amino-acid degradation; L-lysine degradation via saccharopine
CC       pathway; glutaryl-CoA from L-lysine: step 6/6.
CC   -!- SUBUNIT: Forms a 24-polypeptide structural core with octahedral
CC       symmetry. Part of the 2-oxoglutarate dehydrogenase (OGDH) complex
CC       composed of E1 (2-oxoglutarate dehydrogenase), E2 (dihydrolipoamide
CC       succinyltransferase) and E3 (dihydrolipoamide dehydrogenase); the
CC       complex contains multiple copies of the three enzymatic components (E1,
CC       E2 and E3). {ECO:0000250|UniProtKB:P0AFG6}.
CC   -!- SIMILARITY: Belongs to the 2-oxoacid dehydrogenase family.
CC       {ECO:0000305}.
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DR   EMBL; AJ235270; CAA14646.1; -; Genomic_DNA.
DR   PIR; G71728; G71728.
DR   RefSeq; NP_220569.1; NC_000963.1.
DR   RefSeq; WP_004595915.1; NC_000963.1.
DR   AlphaFoldDB; Q9ZDY4; -.
DR   SMR; Q9ZDY4; -.
DR   STRING; 272947.gene:17555262; -.
DR   EnsemblBacteria; CAA14646; CAA14646; CAA14646.
DR   GeneID; 57569307; -.
DR   KEGG; rpr:RP179; -.
DR   PATRIC; fig|272947.5.peg.184; -.
DR   eggNOG; COG0508; Bacteria.
DR   HOGENOM; CLU_016733_0_0_5; -.
DR   OrthoDB; 9805770at2; -.
DR   UniPathway; UPA00868; UER00840.
DR   Proteomes; UP000002480; Chromosome.
DR   GO; GO:0045252; C:oxoglutarate dehydrogenase complex; IEA:InterPro.
DR   GO; GO:0004149; F:dihydrolipoyllysine-residue succinyltransferase activity; IEA:UniProtKB-EC.
DR   GO; GO:0033512; P:L-lysine catabolic process to acetyl-CoA via saccharopine; IEA:UniProtKB-UniPathway.
DR   GO; GO:0006099; P:tricarboxylic acid cycle; IEA:UniProtKB-KW.
DR   CDD; cd06849; lipoyl_domain; 1.
DR   Gene3D; 2.40.50.100; -; 1.
DR   Gene3D; 3.30.559.10; Chloramphenicol acetyltransferase-like domain; 1.
DR   Gene3D; 4.10.320.10; E3-binding domain; 1.
DR   InterPro; IPR003016; 2-oxoA_DH_lipoyl-BS.
DR   InterPro; IPR001078; 2-oxoacid_DH_actylTfrase.
DR   InterPro; IPR000089; Biotin_lipoyl.
DR   InterPro; IPR023213; CAT-like_dom_sf.
DR   InterPro; IPR036625; E3-bd_dom_sf.
DR   InterPro; IPR004167; PSBD.
DR   InterPro; IPR011053; Single_hybrid_motif.
DR   InterPro; IPR006255; SucB.
DR   NCBIfam; TIGR01347; sucB; 1.
DR   PANTHER; PTHR43416:SF5; DIHYDROLIPOYLLYSINE-RESIDUE SUCCINYLTRANSFERASE COMPONENT OF 2-OXOGLUTARATE DEHYDROGENASE COMPLEX, MITOCHONDRIAL; 1.
DR   PANTHER; PTHR43416; DIHYDROLIPOYLLYSINE-RESIDUE SUCCINYLTRANSFERASE COMPONENT OF 2-OXOGLUTARATE DEHYDROGENASE COMPLEX, MITOCHONDRIAL-RELATED; 1.
DR   Pfam; PF00198; 2-oxoacid_dh; 1.
DR   Pfam; PF00364; Biotin_lipoyl; 1.
DR   Pfam; PF02817; E3_binding; 1.
DR   SUPFAM; SSF52777; CoA-dependent acyltransferases; 1.
DR   SUPFAM; SSF47005; Peripheral subunit-binding domain of 2-oxo acid dehydrogenase complex; 1.
DR   SUPFAM; SSF51230; Single hybrid motif; 1.
DR   PROSITE; PS50968; BIOTINYL_LIPOYL; 1.
DR   PROSITE; PS00189; LIPOYL; 1.
DR   PROSITE; PS51826; PSBD; 1.
PE   3: Inferred from homology;
KW   Acyltransferase; Lipoyl; Reference proteome; Transferase;
KW   Tricarboxylic acid cycle.
FT   CHAIN           1..401
FT                   /note="Dihydrolipoyllysine-residue succinyltransferase
FT                   component of 2-oxoglutarate dehydrogenase complex"
FT                   /id="PRO_0000162269"
FT   DOMAIN          2..77
FT                   /note="Lipoyl-binding"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01066"
FT   DOMAIN          115..152
FT                   /note="Peripheral subunit-binding (PSBD)"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01170"
FT   ACT_SITE        372
FT                   /evidence="ECO:0000250|UniProtKB:P0AFG6"
FT   ACT_SITE        376
FT                   /evidence="ECO:0000250|UniProtKB:P0AFG6"
FT   MOD_RES         43
FT                   /note="N6-lipoyllysine"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01066"
SQ   SEQUENCE   401 AA;  43979 MW;  353F81339C5E9F23 CRC64;
     MSVKIIIPSL GESVTEATIA KWYKKLGDSV KTDELLLEIE TEKVTLEVNA PCNGTIEKIA
     KTDGANVTVG EEIGEINEVV DTDTACTNNN SYKKQAIVQH DSEQIVDKPA SSSNILAPSV
     QKLVTENKLD PNNIKGTGRG GRITKCDVLE TINTTPVTIE TPALNKTNEE RTQRVRMSRL
     RKTIAQRLKD SQNTAAILTT FNEIDMSKVI ALRNQYKEEF EKKHTVKLGF MSFFVKATIE
     ALKLIPSINA EIDGDDLLYK NYYDIGVAVG TDQGLVVPVV RDADKMGFAD VEQAIGDLAK
     KAREGKLSMS DLSGGTFSIS NGGVYGSLLS TPIINPPQSG ILGLHKTEER AVVIDGKIEI
     RPMMYIALSY DHRIIDGKEG VSFLVKIKNL IENPEKLLLN L
//