ID A0A2P2E6B8_9PROT Unreviewed; 400 AA.
AC A0A2P2E6B8;
DT 23-MAY-2018, integrated into UniProtKB/TrEMBL.
DT 23-MAY-2018, sequence version 1.
DT 27-MAR-2024, entry version 22.
DE RecName: Full=Succinate--CoA ligase [ADP-forming] subunit beta {ECO:0000256|HAMAP-Rule:MF_00558};
DE EC=6.2.1.5 {ECO:0000256|HAMAP-Rule:MF_00558};
DE AltName: Full=Succinyl-CoA synthetase subunit beta {ECO:0000256|HAMAP-Rule:MF_00558};
DE Short=SCS-beta {ECO:0000256|HAMAP-Rule:MF_00558};
GN Name=sucC {ECO:0000256|HAMAP-Rule:MF_00558,
GN ECO:0000313|EMBL:GBF56621.1};
GN ORFNames=PbB2_00278 {ECO:0000313|EMBL:GBF56621.1};
OS Candidatus Phycosocius bacilliformis.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Caulobacterales;
OC Caulobacterales incertae sedis; Phycosocius.
OX NCBI_TaxID=1445552 {ECO:0000313|EMBL:GBF56621.1, ECO:0000313|Proteomes:UP000245086};
RN [1] {ECO:0000313|EMBL:GBF56621.1, ECO:0000313|Proteomes:UP000245086}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=BOTRYCO-2 {ECO:0000313|EMBL:GBF56621.1,
RC ECO:0000313|Proteomes:UP000245086};
RA Tanabe Y., Yamaguchi H., Watanabe M.M.;
RT "Draft Genome Sequence of "Candidatus Phycosocius bacilliformis," an
RT Alphaproteobacterial Ectosymbiont of the Hydrocarbon-Producing Green Alga
RT Botryococcus braunii.";
RL Genome Announc. 6:e00396-18(2018).
CC -!- FUNCTION: Succinyl-CoA synthetase functions in the citric acid cycle
CC (TCA), coupling the hydrolysis of succinyl-CoA to the synthesis of
CC either ATP or GTP and thus represents the only step of substrate-level
CC phosphorylation in the TCA. The beta subunit provides nucleotide
CC specificity of the enzyme and binds the substrate succinate, while the
CC binding sites for coenzyme A and phosphate are found in the alpha
CC subunit. {ECO:0000256|HAMAP-Rule:MF_00558}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + CoA + succinate = ADP + phosphate + succinyl-CoA;
CC Xref=Rhea:RHEA:17661, ChEBI:CHEBI:30031, ChEBI:CHEBI:30616,
CC ChEBI:CHEBI:43474, ChEBI:CHEBI:57287, ChEBI:CHEBI:57292,
CC ChEBI:CHEBI:456216; EC=6.2.1.5; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_00558};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=CoA + GTP + succinate = GDP + phosphate + succinyl-CoA;
CC Xref=Rhea:RHEA:22120, ChEBI:CHEBI:30031, ChEBI:CHEBI:37565,
CC ChEBI:CHEBI:43474, ChEBI:CHEBI:57287, ChEBI:CHEBI:57292,
CC ChEBI:CHEBI:58189; Evidence={ECO:0000256|HAMAP-Rule:MF_00558};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00558};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000256|HAMAP-Rule:MF_00558};
CC -!- PATHWAY: Carbohydrate metabolism; tricarboxylic acid cycle; succinate
CC from succinyl-CoA (ligase route): step 1/1. {ECO:0000256|HAMAP-
CC Rule:MF_00558}.
CC -!- SUBUNIT: Heterotetramer of two alpha and two beta subunits.
CC {ECO:0000256|HAMAP-Rule:MF_00558}.
CC -!- SIMILARITY: Belongs to the succinate/malate CoA ligase beta subunit
CC family. {ECO:0000256|HAMAP-Rule:MF_00558}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00558}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:GBF56621.1}.
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DR EMBL; BFBR01000001; GBF56621.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2P2E6B8; -.
DR OrthoDB; 9802602at2; -.
DR UniPathway; UPA00223; UER00999.
DR Proteomes; UP000245086; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProt.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0004775; F:succinate-CoA ligase (ADP-forming) activity; IEA:UniProtKB-UniRule.
DR GO; GO:0004776; F:succinate-CoA ligase (GDP-forming) activity; IEA:RHEA.
DR GO; GO:0006099; P:tricarboxylic acid cycle; IEA:UniProtKB-UniRule.
DR Gene3D; 3.30.1490.20; ATP-grasp fold, A domain; 1.
DR Gene3D; 3.30.470.20; ATP-grasp fold, B domain; 1.
DR Gene3D; 3.40.50.261; Succinyl-CoA synthetase domains; 1.
DR HAMAP; MF_00558; Succ_CoA_beta; 1.
DR InterPro; IPR011761; ATP-grasp.
DR InterPro; IPR013650; ATP-grasp_succ-CoA_synth-type.
DR InterPro; IPR013815; ATP_grasp_subdomain_1.
DR InterPro; IPR017866; Succ-CoA_synthase_bsu_CS.
DR InterPro; IPR005811; SUCC_ACL_C.
DR InterPro; IPR005809; Succ_CoA_ligase-like_bsu.
DR InterPro; IPR016102; Succinyl-CoA_synth-like.
DR NCBIfam; TIGR01016; sucCoAbeta; 1.
DR PANTHER; PTHR11815:SF10; SUCCINATE--COA LIGASE [ADP-FORMING] SUBUNIT BETA, MITOCHONDRIAL; 1.
DR PANTHER; PTHR11815; SUCCINYL-COA SYNTHETASE BETA CHAIN; 1.
DR Pfam; PF08442; ATP-grasp_2; 1.
DR Pfam; PF00549; Ligase_CoA; 1.
DR PIRSF; PIRSF001554; SucCS_beta; 1.
DR SUPFAM; SSF56059; Glutathione synthetase ATP-binding domain-like; 1.
DR SUPFAM; SSF52210; Succinyl-CoA synthetase domains; 1.
DR PROSITE; PS50975; ATP_GRASP; 1.
DR PROSITE; PS01217; SUCCINYL_COA_LIG_3; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|HAMAP-Rule:MF_00558, ECO:0000256|PROSITE-
KW ProRule:PRU00409};
KW Ligase {ECO:0000256|ARBA:ARBA00022598, ECO:0000256|HAMAP-Rule:MF_00558};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|HAMAP-Rule:MF_00558};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_00558};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_00558}; Reference proteome {ECO:0000313|Proteomes:UP000245086};
KW Tricarboxylic acid cycle {ECO:0000256|ARBA:ARBA00022532, ECO:0000256|HAMAP-
KW Rule:MF_00558}.
FT DOMAIN 9..255
FT /note="ATP-grasp"
FT /evidence="ECO:0000259|PROSITE:PS50975"
FT BINDING 46
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00558"
FT BINDING 53..55
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00558"
FT BINDING 112
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00558"
FT BINDING 117
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00558"
FT BINDING 209
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00558"
FT BINDING 224
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00558"
FT BINDING 275
FT /ligand="substrate"
FT /ligand_note="ligand shared with subunit alpha"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00558"
FT BINDING 332..334
FT /ligand="substrate"
FT /ligand_note="ligand shared with subunit alpha"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00558"
SQ SEQUENCE 400 AA; 42052 MW; 8E6A70492917B668 CRC64;
MNVHEHQAKE VLAQYGLPVP PGIAAFSVDE AKAAAQKLGG SMWVVKSQIH AGGRGKGKFK
ELPPEAKGGV RLAFNLDEVA AHAKDMLGNT LVTVQTGPVG KQVQRLYIAG GADIDRELYL
SVLVDRGTGR VAFVASEAGG MDIETVAHDT PEKISTIVID PATGVTPANS AAVAKALNLN
SDQADACHDL CVKLYTAFTK GDMEMCEINP LIVEKGTGKL VCLDAKMSFD SNAEFRHPEW
AAMRDLSEED DKEIEASKYD LAYIALDGTI GCMVNGAGLA MATMDIIKLY GEEPANFLDV
GGGATREKVT AAFKIITADP AVKGILVNIF GGIMRCDVIA EGVVAAVTDV GLKVPLVVRL
EGTNVELGKK ILRDSGLAVV PADDLADAAQ KIVAAVRKAA
//
