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Protein

Succinate--CoA ligase [ADP-forming] subunit alpha

Gene

sucD

Organism
Pyrobaculum aerophilum (strain ATCC 51768 / IM2 / DSM 7523 / JCM 9630 / NBRC 100827)
Status
Unreviewed-Annotation score: -Protein inferred from homologyi

Functioni

Succinyl-CoA synthetase functions in the citric acid cycle (TCA), coupling the hydrolysis of succinyl-CoA to the synthesis of either ATP or GTP and thus represents the only step of substrate-level phosphorylation in the TCA. The alpha subunit of the enzyme binds the substrates coenzyme A and phosphate, while succinate binding and nucleotide specificity is provided by the beta subunit.UniRule annotation

Catalytic activityi

ATP + succinate + CoA = ADP + phosphate + succinyl-CoA.UniRule annotation

Pathwayi: tricarboxylic acid cycle

This protein is involved in step 1 of the subpathway that synthesizes succinate from succinyl-CoA (ligase route).UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Succinate--CoA ligase [ADP-forming] subunit beta (sucC), Succinate--CoA ligase [ADP-forming] subunit alpha (sucD)
This subpathway is part of the pathway tricarboxylic acid cycle, which is itself part of Carbohydrate metabolism.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes succinate from succinyl-CoA (ligase route), the pathway tricarboxylic acid cycle and in Carbohydrate metabolism.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei43Coenzyme AUniRule annotation1
Binding sitei161Substrate; shared with subunit betaUniRule annotation1
Active sitei250Tele-phosphohistidine intermediateUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionLigaseUniRule annotation
Biological processTricarboxylic acid cycleUniRule annotation
LigandNucleotide-bindingUniRule annotation

Enzyme and pathway databases

BioCyciPAER178306:GCEO-1665-MONOMER
UniPathwayiUPA00223; UER00999

Names & Taxonomyi

Protein namesi
Recommended name:
Succinate--CoA ligase [ADP-forming] subunit alphaUniRule annotation (EC:6.2.1.5UniRule annotation)
Alternative name(s):
Succinyl-CoA synthetase subunit alphaUniRule annotation
Short name:
SCS-alphaUniRule annotation
Gene namesi
Name:sucDUniRule annotation
Ordered Locus Names:PAE2313Imported
OrganismiPyrobaculum aerophilum (strain ATCC 51768 / IM2 / DSM 7523 / JCM 9630 / NBRC 100827)Imported
Taxonomic identifieri178306 [NCBI]
Taxonomic lineageiArchaeaCrenarchaeotaThermoproteiThermoprotealesThermoproteaceaePyrobaculum
Proteomesi
  • UP000002439 Componenti: Chromosome

Interactioni

Subunit structurei

Heterotetramer of two alpha and two beta subunits.UniRule annotation

Protein-protein interaction databases

STRINGi178306.PAE2313

Structurei

3D structure databases

ProteinModelPortaliQ8ZVF2
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini4 – 100CoA_bindingInterPro annotationAdd BLAST97

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni17 – 20Coenzyme A bindingUniRule annotation4
Regioni96 – 98Coenzyme A bindingUniRule annotation3

Sequence similaritiesi

Belongs to the succinate/malate CoA ligase alpha subunit family.UniRule annotation

Phylogenomic databases

eggNOGiarCOG01339 Archaea
COG0074 LUCA
HOGENOMiHOG000239685
InParanoidiQ8ZVF2
KOiK01902
OMAiIIFVPPA
OrthoDBiPOG093Z0657

Family and domain databases

Gene3Di3.40.50.261, 1 hit
HAMAPiMF_01988 Succ_CoA_alpha, 1 hit
InterProiView protein in InterPro
IPR017440 Cit_synth/succinyl-CoA_lig_AS
IPR033847 Citrt_syn/SCS-alpha_CS
IPR003781 CoA-bd
IPR005810 CoA_lig_alpha
IPR005811 CoA_ligase
IPR036291 NAD(P)-bd_dom_sf
IPR016102 Succinyl-CoA_synth-like
PfamiView protein in Pfam
PF02629 CoA_binding, 1 hit
PF00549 Ligase_CoA, 1 hit
PIRSFiPIRSF001553 SucCS_alpha, 1 hit
SMARTiView protein in SMART
SM00881 CoA_binding, 1 hit
SUPFAMiSSF51735 SSF51735, 1 hit
SSF52210 SSF52210, 1 hit
TIGRFAMsiTIGR01019 sucCoAalpha, 1 hit
PROSITEiView protein in PROSITE
PS01216 SUCCINYL_COA_LIG_1, 1 hit
PS00399 SUCCINYL_COA_LIG_2, 1 hit

Sequencei

Sequence statusi: Complete.

Q8ZVF2-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTVLVGPNTK VVVQGATGRE GSFHLQRMLE YGTKVVAGVT PGKGGTTVHG
60 70 80 90 100
VPVYDTVEEA VRRHGANASV IFVPARFAAD ALLEAVDAGV ELSVVITEHI
110 120 130 140 150
PVHETLRAVN YARARGVTVI GPNCPGIVAP PVRTKLGIMP NNIYQTPGKI
160 170 180 190 200
AVVSRSGTLT YEISYQLVRA GFGINVAIGV GGDPIVGLDL MEATLKVAED
210 220 230 240 250
PEVDGVVVIG EVGGDAEERL ARLYAEGVIK KPVVAYVAGR TAPPGKRMGH
260 270 280 290
AGAIVMLGSG DATSKIEAFR AAGVPVAETP FEVPQLLAKL LKK
Length:293
Mass (Da):30,481
Last modified:March 1, 2002 - v1
Checksum:iA9D9719687524FB7
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE009441 Genomic DNA Translation: AAL64104.1

Genome annotation databases

EnsemblBacteriaiAAL64104; AAL64104; PAE2313
KEGGipai:PAE2313
PATRICifig|178306.9.peg.1724

Similar proteinsi

Entry informationi

Entry nameiQ8ZVF2_PYRAE
AccessioniPrimary (citable) accession number: Q8ZVF2
Entry historyiIntegrated into UniProtKB/TrEMBL: March 1, 2002
Last sequence update: March 1, 2002
Last modified: May 23, 2018
This is version 110 of the entry and version 1 of the sequence. See complete history.
Entry statusiUnreviewed (UniProtKB/TrEMBL)

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteomeImported

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