ID   SUCC_ECOSM              Reviewed;         388 AA.
AC   B1LLG1;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   29-APR-2008, sequence version 1.
DT   27-MAR-2024, entry version 90.
DE   RecName: Full=Succinate--CoA ligase [ADP-forming] subunit beta {ECO:0000255|HAMAP-Rule:MF_00558};
DE            EC=6.2.1.5 {ECO:0000255|HAMAP-Rule:MF_00558};
DE   AltName: Full=Succinyl-CoA synthetase subunit beta {ECO:0000255|HAMAP-Rule:MF_00558};
DE            Short=SCS-beta {ECO:0000255|HAMAP-Rule:MF_00558};
GN   Name=sucC {ECO:0000255|HAMAP-Rule:MF_00558};
GN   OrderedLocusNames=EcSMS35_0740;
OS   Escherichia coli (strain SMS-3-5 / SECEC).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=439855;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SMS-3-5 / SECEC;
RX   PubMed=18708504; DOI=10.1128/jb.00661-08;
RA   Fricke W.F., Wright M.S., Lindell A.H., Harkins D.M., Baker-Austin C.,
RA   Ravel J., Stepanauskas R.;
RT   "Insights into the environmental resistance gene pool from the genome
RT   sequence of the multidrug-resistant environmental isolate Escherichia coli
RT   SMS-3-5.";
RL   J. Bacteriol. 190:6779-6794(2008).
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:0000255|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:0000255|HAMAP-
CC         Rule:MF_00558};
CC       PhysiologicalDirection=right-to-left; Xref=Rhea:RHEA:17663;
CC         Evidence={ECO:0000255|HAMAP-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:0000255|HAMAP-Rule:MF_00558};
CC       PhysiologicalDirection=right-to-left; Xref=Rhea:RHEA:22122;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00558};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00558};
CC       Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00558};
CC   -!- PATHWAY: Carbohydrate metabolism; tricarboxylic acid cycle; succinate
CC       from succinyl-CoA (ligase route): step 1/1. {ECO:0000255|HAMAP-
CC       Rule:MF_00558}.
CC   -!- SUBUNIT: Heterotetramer of two alpha and two beta subunits.
CC       {ECO:0000255|HAMAP-Rule:MF_00558}.
CC   -!- SIMILARITY: Belongs to the succinate/malate CoA ligase beta subunit
CC       family. {ECO:0000255|HAMAP-Rule:MF_00558}.
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DR   EMBL; CP000970; ACB19410.1; -; Genomic_DNA.
DR   RefSeq; WP_001048602.1; NC_010498.1.
DR   AlphaFoldDB; B1LLG1; -.
DR   SMR; B1LLG1; -.
DR   GeneID; 75205559; -.
DR   KEGG; ecm:EcSMS35_0740; -.
DR   HOGENOM; CLU_037430_4_0_6; -.
DR   UniPathway; UPA00223; UER00999.
DR   Proteomes; UP000007011; Chromosome.
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; Ligase; Magnesium; Metal-binding; Nucleotide-binding;
KW   Tricarboxylic acid cycle.
FT   CHAIN           1..388
FT                   /note="Succinate--CoA ligase [ADP-forming] subunit beta"
FT                   /id="PRO_1000129188"
FT   DOMAIN          9..244
FT                   /note="ATP-grasp"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00558"
FT   BINDING         46
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00558"
FT   BINDING         53..55
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00558"
FT   BINDING         99
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00558"
FT   BINDING         102
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00558"
FT   BINDING         107
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00558"
FT   BINDING         199
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00558"
FT   BINDING         213
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00558"
FT   BINDING         264
FT                   /ligand="substrate"
FT                   /ligand_note="ligand shared with subunit alpha"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00558"
FT   BINDING         321..323
FT                   /ligand="substrate"
FT                   /ligand_note="ligand shared with subunit alpha"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00558"
SQ   SEQUENCE   388 AA;  41393 MW;  09C429EC97A823CF CRC64;
     MNLHEYQAKQ LFARYGLPAP VGYACTTPRE AEEAASKIGA GPWVVKCQVH AGGRGKAGGV
     KVVNSKEDIR AFAENWLGKR LVTYQTDANG QPVNQILVEA ATDIAKELYL GAVVDRSSRR
     VVFMASTEGG VEIEKVAEET PHLIHKVALD PLTGPMPYQG RELAFKLGLE GKLVQQFTKI
     FMGLATIFLE RDLALIEINP LVITKQGDLI CLDGKLGADG NALFRQPDLR EMRDQSQEDP
     REAQAAQWEL NYVALDGNIG CMVNGAGLAM GTMDIVKLHG GEPANFLDVG GGATKERVTE
     AFKIILSDDK VKAVLVNIFG GIVRCDLIAD GIIGAVAEVG VNVPVVVRLE GNNAELGAKK
     LADSGLNIIA AKGLTDAAQQ VVAAVEGK
//