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Protein

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

Gene

sucD

Organism
Rhizobium loti (strain MAFF303099) (Mesorhizobium loti)
Status
Unreviewed-Annotation score: Annotation score: 3 out of 5-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), 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 sitei163Substrate; shared with subunit betaUniRule annotation1
Active sitei251Tele-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

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:mlr1326Imported
OrganismiRhizobium loti (strain MAFF303099) (Mesorhizobium loti)Imported
Taxonomic identifieri266835 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaRhizobialesPhyllobacteriaceaeMesorhizobium
Proteomesi
  • UP000000552 Componenti: Chromosome

Interactioni

Subunit structurei

Heterotetramer of two alpha and two beta subunits.UniRule annotation

Protein-protein interaction databases

STRINGi266835.mlr1326.

Structurei

3D structure databases

ProteinModelPortaliQ98KT8.
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

eggNOGiENOG4105CH8. Bacteria.
COG0074. LUCA.
HOGENOMiHOG000239685.
KOiK08692.
OMAiSQEYGTN.
OrthoDBiPOG091H04FK.

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.
IPR003781. CoA-bd.
IPR005810. CoA_lig_alpha.
IPR005811. CoA_ligase.
IPR016040. NAD(P)-bd_dom.
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
PS00399. SUCCINYL_COA_LIG_2. 1 hit.

Sequencei

Sequence statusi: Complete.

Q98KT8-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAILLNRSTR VIVQGFTGKI GSFHAEDMKR YGTKLVGGVT PGKGGQTHLG
60 70 80 90 100
LPVFNTVKGA VRETRAEASI VFVPPPFAAD SIMEAADAGI KLCVCITDGI
110 120 130 140 150
PSQDMMQVKR YMRRYRFEDR MRLIGPNCAG MITPGQALMG IMPGSIYLPG
160 170 180 190 200
RVGIVGRSGT LGYEAASQMK ALGIGVSTSV GIGGDPINGS SFKDILKLFE
210 220 230 240 250
QDDETDAVVM IGEIGGPQEA EAAIWARDNM RKPLIAYIAG LSAPKGRRMG
260 270 280 290
HAGAIISAFG ESAQEKVEIL KEAGVIIVPT PSSFGEVVAD TLARMKKAA
Length:299
Mass (Da):31,601
Last modified:October 1, 2001 - v1
Checksum:i78194A84A92079FF
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000012 Genomic DNA. Translation: BAB48726.1.
RefSeqiWP_010910079.1. NC_002678.2.

Genome annotation databases

EnsemblBacteriaiBAB48726; BAB48726; BAB48726.
GeneIDi1225603.
KEGGimlo:mlr1326.
PATRICi22476318. VBIMesLot2464_1071.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000012 Genomic DNA. Translation: BAB48726.1.
RefSeqiWP_010910079.1. NC_002678.2.

3D structure databases

ProteinModelPortaliQ98KT8.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi266835.mlr1326.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiBAB48726; BAB48726; BAB48726.
GeneIDi1225603.
KEGGimlo:mlr1326.
PATRICi22476318. VBIMesLot2464_1071.

Phylogenomic databases

eggNOGiENOG4105CH8. Bacteria.
COG0074. LUCA.
HOGENOMiHOG000239685.
KOiK08692.
OMAiSQEYGTN.
OrthoDBiPOG091H04FK.

Enzyme and pathway databases

UniPathwayiUPA00223; UER00999.

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.
IPR003781. CoA-bd.
IPR005810. CoA_lig_alpha.
IPR005811. CoA_ligase.
IPR016040. NAD(P)-bd_dom.
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
PS00399. SUCCINYL_COA_LIG_2. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiQ98KT8_RHILO
AccessioniPrimary (citable) accession number: Q98KT8
Entry historyiIntegrated into UniProtKB/TrEMBL: October 1, 2001
Last sequence update: October 1, 2001
Last modified: May 10, 2017
This is version 107 of the entry and version 1 of the sequence. See complete history.
Entry statusiUnreviewed (UniProtKB/TrEMBL)

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteomeImported

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 one 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.