SUCC_PELUB
ID SUCC_PELUB Reviewed; 386 AA.
AC Q4FP29;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 30-AUG-2005, sequence version 1.
DT 03-AUG-2022, entry version 106.
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}; OrderedLocusNames=SAR11_0239;
OS Pelagibacter ubique (strain HTCC1062).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Pelagibacterales;
OC Pelagibacteraceae; Candidatus Pelagibacter.
OX NCBI_TaxID=335992;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HTCC1062;
RX PubMed=16109880; DOI=10.1126/science.1114057;
RA Giovannoni S.J., Tripp H.J., Givan S., Podar M., Vergin K.L., Baptista D.,
RA Bibbs L., Eads J., Richardson T.H., Noordewier M., Rappe M.S., Short J.M.,
RA Carrington J.C., Mathur E.J.;
RT "Genome streamlining in a cosmopolitan oceanic bacterium.";
RL Science 309:1242-1245(2005).
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 -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-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; CP000084; AAZ21060.1; -; Genomic_DNA.
DR RefSeq; WP_011281562.1; NC_007205.1.
DR AlphaFoldDB; Q4FP29; -.
DR SMR; Q4FP29; -.
DR STRING; 335992.SAR11_0239; -.
DR EnsemblBacteria; AAZ21060; AAZ21060; SAR11_0239.
DR GeneID; 66294736; -.
DR KEGG; pub:SAR11_0239; -.
DR eggNOG; COG0045; Bacteria.
DR HOGENOM; CLU_037430_0_2_5; -.
DR OMA; ITACDEV; -.
DR OrthoDB; 316012at2; -.
DR UniPathway; UPA00223; UER00999.
DR Proteomes; UP000002528; 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:0006099; P:tricarboxylic acid cycle; IEA:UniProtKB-UniRule.
DR Gene3D; 3.30.1490.20; -; 1.
DR Gene3D; 3.40.50.261; -; 1.
DR HAMAP; MF_00558; Succ_CoA_beta; 1.
DR InterPro; IPR013650; ATP-grasp_succ-CoA_synth-type.
DR InterPro; IPR013815; ATP_grasp_subdomain_1.
DR InterPro; IPR005811; CoA_ligase.
DR InterPro; IPR017866; Succ-CoA_synthase_bsu_CS.
DR InterPro; IPR005809; Succ_CoA_synthase_bsu.
DR InterPro; IPR016102; Succinyl-CoA_synth-like.
DR PANTHER; PTHR11815; PTHR11815; 1.
DR Pfam; PF08442; ATP-grasp_2; 1.
DR Pfam; PF00549; Ligase_CoA; 1.
DR PIRSF; PIRSF001554; SucCS_beta; 1.
DR SUPFAM; SSF52210; SSF52210; 1.
DR TIGRFAMs; TIGR01016; sucCoAbeta; 1.
DR PROSITE; PS01217; SUCCINYL_COA_LIG_3; 1.
PE 3: Inferred from homology;
KW ATP-binding; Ligase; Magnesium; Metal-binding; Nucleotide-binding;
KW Reference proteome; Tricarboxylic acid cycle.
FT CHAIN 1..386
FT /note="Succinate--CoA ligase [ADP-forming] subunit beta"
FT /id="PRO_1000082155"
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 386 AA; 41884 MW; 379DDF8A0BDCEF77 CRC64;
MNIHEHQAKQ ILKKYGAVVP EGVFAFTVDE LIEKAKSLKT EKFVLKAQIH AGGRGKAGGV
KILNTIDELS VAAKELLGKT LVTHQTGPAG REVKRLYVEE SSNIDKEFYL SCLVDRASSK
IVFISSDQGG MDIEEVAEKT PEKIITTKID ITDEISDADC EKIIAIYALA DDAKKQAIAL
IKSVYKMFLG TDANMVEVNP LILTKEKKII CLDAKVNFDS NALFRHPEII ELRDLNEEDP
TEIDASKHDL AYIKLDGSIG CMVNGAGLAM ATMDIIKLYG EEPANFLDVG GGASKEKVSA
ALKIILSDKN VKGILINIFG GIMRCDVLAQ GVVDAAKEIN ISVPLVVRLA GTNFKEGKEI
LDNSGLKLIS AENLDDAAQK IVEAIK
