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Protein

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

Gene

sucD

Organism
Picrophilus torridus (strain ATCC 700027 / DSM 9790 / JCM 10055 / NBRC 100828)
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 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 sitei42Coenzyme AUniRule annotation1
Binding sitei157Substrate; shared with subunit betaUniRule annotation1
Active sitei245Tele-phosphohistidine intermediateUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

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

Enzyme and pathway databases

BioCyciPTOR263820:G1G0U-1074-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:PTO1002Imported
OrganismiPicrophilus torridus (strain ATCC 700027 / DSM 9790 / JCM 10055 / NBRC 100828)Imported
Taxonomic identifieri263820 [NCBI]
Taxonomic lineageiArchaeaEuryarchaeotaThermoplasmataThermoplasmatalesPicrophilaceaePicrophilus
Proteomesi
  • UP000000438 Componenti: Chromosome

Interactioni

Subunit structurei

Heterotetramer of two alpha and two beta subunits.UniRule annotation

Protein-protein interaction databases

STRINGi263820.PTO1002

Structurei

3D structure databases

ProteinModelPortaliQ6L0B5
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini3 – 98CoA_bindingInterPro annotationAdd BLAST96

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni16 – 19Coenzyme A bindingUniRule annotation4
Regioni94 – 96Coenzyme A bindingUniRule annotation3

Sequence similaritiesi

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

Phylogenomic databases

eggNOGiarCOG01339 Archaea
COG0074 LUCA
HOGENOMiHOG000239685
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.

Q6L0B5-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MVLINRNTRV IIQGITGHQG SFHSGEMLKF GTNIVAGVSP GKGGSKINNI
60 70 80 90 100
PVYDTIDEVM DLKPDATMIS VPAPFVKDAA LEAIDHGIKF IYILTEHVPV
110 120 130 140 150
QDTMEIVNQA KRKNIFMIGP NGPGITVVGE SKIGIMPNNI FRKGRVAVAS
160 170 180 190 200
RSGTLTYEIV NAITQAGLGE STVIGLGGDP IVGTTFTEVV RIFNEDPETD
210 220 230 240 250
MIVMVGEIGG SEEERAASYV KEHVKKKVVG YITGRSAPPG KRMGHAGAII
260 270 280
EKGAGTAESK IRAFESAGIK VAEYPYQIPD LLKQ
Length:284
Mass (Da):30,358
Last modified:July 5, 2004 - v1
Checksum:i5E5A672BA9FF01E7
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE017261 Genomic DNA Translation: AAT43587.1
RefSeqiWP_011177803.1, NC_005877.1

Genome annotation databases

EnsemblBacteriaiAAT43587; AAT43587; PTO1002
GeneIDi2844315
KEGGipto:PTO1002
PATRICifig|263820.9.peg.1041

Similar proteinsi

Entry informationi

Entry nameiQ6L0B5_PICTO
AccessioniPrimary (citable) accession number: Q6L0B5
Entry historyiIntegrated into UniProtKB/TrEMBL: July 5, 2004
Last sequence update: July 5, 2004
Last modified: July 18, 2018
This is version 105 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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