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Protein

Dihydrolipoyllysine-residue succinyltransferase component of 2-oxoglutarate dehydrogenase complex

Gene

sucB

Organism
Buchnera aphidicola subsp. Schizaphis graminum (strain Sg)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

The 2-oxoglutarate dehydrogenase complex catalyzes the overall conversion of 2-oxoglutarate to succinyl-CoA and CO2. It contains multiple copies of three enzymatic components: 2-oxoglutarate dehydrogenase (E1), dihydrolipoamide succinyltransferase (E2) and lipoamide dehydrogenase (E3) (By similarity).By similarity

Catalytic activityi

Succinyl-CoA + enzyme N(6)-(dihydrolipoyl)lysine = CoA + enzyme N(6)-(S-succinyldihydrolipoyl)lysine.

Cofactori

(R)-lipoateBy similarityNote: Binds 1 lipoyl cofactor covalently.By similarity

Pathway:iL-lysine degradation via saccharopine pathway

This protein is involved in step 6 of the subpathway that synthesizes glutaryl-CoA from L-lysine.
Proteins known to be involved in the 6 steps of the subpathway in this organism are:
  1. no protein annotated in this organism
  2. no protein annotated in this organism
  3. no protein annotated in this organism
  4. no protein annotated in this organism
  5. no protein annotated in this organism
  6. Dihydrolipoyllysine-residue succinyltransferase component of 2-oxoglutarate dehydrogenase complex (sucB)
This subpathway is part of the pathway L-lysine degradation via saccharopine pathway, which is itself part of Amino-acid degradation.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes glutaryl-CoA from L-lysine, the pathway L-lysine degradation via saccharopine pathway and in Amino-acid degradation.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei364 – 3641Sequence Analysis
Active sitei368 – 3681Sequence Analysis

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Acyltransferase, Transferase

Keywords - Biological processi

Tricarboxylic acid cycle

Enzyme and pathway databases

BioCyciBAPH198804:GHMG-307-MONOMER.
UniPathwayiUPA00868; UER00840.

Names & Taxonomyi

Protein namesi
Recommended name:
Dihydrolipoyllysine-residue succinyltransferase component of 2-oxoglutarate dehydrogenase complex (EC:2.3.1.61)
Alternative name(s):
2-oxoglutarate dehydrogenase complex component E2
Short name:
OGDC-E2
Dihydrolipoamide succinyltransferase component of 2-oxoglutarate dehydrogenase complex
Gene namesi
Name:sucB
Ordered Locus Names:BUsg_293
OrganismiBuchnera aphidicola subsp. Schizaphis graminum (strain Sg)
Taxonomic identifieri198804 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaeBuchnera
ProteomesiUP000000416 Componenti: Chromosome

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 393393Dihydrolipoyllysine-residue succinyltransferase component of 2-oxoglutarate dehydrogenase complexPRO_0000162260Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei44 – 441N6-lipoyllysinePROSITE-ProRule annotation

Interactioni

Subunit structurei

Forms a 24-polypeptide structural core with octahedral symmetry.By similarity

Protein-protein interaction databases

STRINGi198804.BUsg293.

Structurei

3D structure databases

ProteinModelPortaliQ8K9N2.
SMRiQ8K9N2. Positions 164-393.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini3 – 7876Lipoyl-bindingPROSITE-ProRule annotationAdd
BLAST

Sequence similaritiesi

Belongs to the 2-oxoacid dehydrogenase family.Curated
Contains 1 lipoyl-binding domain.PROSITE-ProRule annotationCurated

Keywords - Domaini

Lipoyl

Phylogenomic databases

eggNOGiCOG0508.
KOiK00658.
OMAiQHALNEC.
OrthoDBiEOG610413.

Family and domain databases

Gene3Di3.30.559.10. 1 hit.
InterProiIPR001078. 2-oxoacid_DH_actylTfrase.
IPR000089. Biotin_lipoyl.
IPR023213. CAT-like_dom.
IPR011053. Single_hybrid_motif.
IPR006255. SucB.
[Graphical view]
PfamiPF00198. 2-oxoacid_dh. 1 hit.
PF00364. Biotin_lipoyl. 1 hit.
[Graphical view]
SUPFAMiSSF51230. SSF51230. 1 hit.
TIGRFAMsiTIGR01347. sucB. 1 hit.
PROSITEiPS50968. BIOTINYL_LIPOYL. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q8K9N2-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MNRINILVPD LPESVNDAVV VKWYKKIGEQ ISSEDNIVDI ETDKVMLEVS
60 70 80 90 100
APCNGILNEI LEKEGSIVKS NQILGNIVES KNIESKTKSK LEKSNKYFIK
110 120 130 140 150
DKNFNISFKE KIYNFPPSIR RIIRIKKNKE IFNELNYIKN QENIIEEKLN
160 170 180 190 200
DQSFSNEKEK KIYENRIKMT RLRQKIAERL LETKNNTAML TTFNEVNMQP
210 220 230 240 250
IISLRKKYGE FFEKKHGVRI GFMPFFVKAV VESLKKFPEI NASIDKNDIV
260 270 280 290 300
YYKNIDVSIA VSTPRGVITP VLRNADNMSM ADIEKKIKEF SIKGIENKIK
310 320 330 340 350
IEELIGGNFT ITNGGIFGSL MSTPIINPPQ SAILGMHLIK ERPMAINGKV
360 370 380 390
KILPMMYLAL SYDHRLIDGK ESVSFLVTIK NILEDFNRII INV
Length:393
Mass (Da):45,154
Last modified:October 1, 2002 - v1
Checksum:i567682324ED9361D
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE013218 Genomic DNA. Translation: AAM67848.1.
RefSeqiWP_011053815.1. NC_004061.1.

Genome annotation databases

EnsemblBacteriaiAAM67848; AAM67848; BUsg_293.
KEGGibas:BUsg293.
PATRICi21247395. VBIBucAph100086_0307.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE013218 Genomic DNA. Translation: AAM67848.1.
RefSeqiWP_011053815.1. NC_004061.1.

3D structure databases

ProteinModelPortaliQ8K9N2.
SMRiQ8K9N2. Positions 164-393.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi198804.BUsg293.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAM67848; AAM67848; BUsg_293.
KEGGibas:BUsg293.
PATRICi21247395. VBIBucAph100086_0307.

Phylogenomic databases

eggNOGiCOG0508.
KOiK00658.
OMAiQHALNEC.
OrthoDBiEOG610413.

Enzyme and pathway databases

UniPathwayiUPA00868; UER00840.
BioCyciBAPH198804:GHMG-307-MONOMER.

Family and domain databases

Gene3Di3.30.559.10. 1 hit.
InterProiIPR001078. 2-oxoacid_DH_actylTfrase.
IPR000089. Biotin_lipoyl.
IPR023213. CAT-like_dom.
IPR011053. Single_hybrid_motif.
IPR006255. SucB.
[Graphical view]
PfamiPF00198. 2-oxoacid_dh. 1 hit.
PF00364. Biotin_lipoyl. 1 hit.
[Graphical view]
SUPFAMiSSF51230. SSF51230. 1 hit.
TIGRFAMsiTIGR01347. sucB. 1 hit.
PROSITEiPS50968. BIOTINYL_LIPOYL. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: Sg.

Entry informationi

Entry nameiODO2_BUCAP
AccessioniPrimary (citable) accession number: Q8K9N2
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 15, 2002
Last sequence update: October 1, 2002
Last modified: July 22, 2015
This is version 90 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

Documents

  1. Buchnera aphidicola (subsp. Schizaphis graminum)
    Buchnera aphidicola (subsp. Schizaphis graminum): entries and gene names
  2. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  3. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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 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.