ID A0A1B8YAJ2_XENTR Unreviewed; 431 AA.
AC A0A1B8YAJ2;
DT 02-NOV-2016, integrated into UniProtKB/TrEMBL.
DT 02-NOV-2016, sequence version 1.
DT 27-MAR-2024, entry version 38.
DE RecName: Full=Succinate--CoA ligase [GDP-forming] subunit beta, mitochondrial {ECO:0000256|HAMAP-Rule:MF_03221};
DE EC=6.2.1.4 {ECO:0000256|HAMAP-Rule:MF_03221};
DE AltName: Full=GTP-specific succinyl-CoA synthetase subunit beta {ECO:0000256|HAMAP-Rule:MF_03221};
DE Short=G-SCS {ECO:0000256|HAMAP-Rule:MF_03221};
DE Short=GTPSCS {ECO:0000256|HAMAP-Rule:MF_03221};
DE AltName: Full=Succinyl-CoA synthetase beta-G chain {ECO:0000256|HAMAP-Rule:MF_03221};
DE Short=SCS-betaG {ECO:0000256|HAMAP-Rule:MF_03221};
GN Name=suclg2 {ECO:0000313|Ensembl:ENSXETP00000087381,
GN ECO:0000313|RefSeq:XP_012816430.1,
GN ECO:0000313|Xenbase:XB-GENE-956242};
GN Synonyms=gbeta {ECO:0000313|RefSeq:XP_012816430.1}, SUCLG2
GN {ECO:0000256|HAMAP-Rule:MF_03221};
GN ORFNames=XENTR_v90026627mg {ECO:0000313|EMBL:OCA19943.1};
OS Xenopus tropicalis (Western clawed frog) (Silurana tropicalis).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Amphibia;
OC Batrachia; Anura; Pipoidea; Pipidae; Xenopodinae; Xenopus; Silurana.
OX NCBI_TaxID=8364 {ECO:0000313|EMBL:OCA19943.1};
RN [1] {ECO:0000313|EMBL:OCA19943.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=Nigerian {ECO:0000313|EMBL:OCA19943.1};
RG US DOE Joint Genome Institute (JGI-PGF);
RA Ottilar R., Schmutz J., Salamov A., Cheng J.F., Lucas S., Pitluck S.,
RA Gundlach H., Guo Y., Haberer G., Nasrallah J., Mayer K.F.X.,
RA van de Peer Y., Weigel D., Grigoriev I.V.;
RL Submitted (NOV-2009) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:OCA19943.1, ECO:0000313|Ensembl:ENSXETP00000087381}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Nigerian {ECO:0000313|EMBL:OCA19943.1,
RC ECO:0000313|Ensembl:ENSXETP00000087381};
RX PubMed=20431018; DOI=10.1126/science.1183670;
RA Hellsten U., Harland R.M., Gilchrist M.J., Hendrix D., Jurka J.,
RA Kapitonov V., Ovcharenko I., Putnam N.H., Shu S., Taher L., Blitz I.L.,
RA Blumberg B., Dichmann D.S., Dubchak I., Amaya E., Detter J.C., Fletcher R.,
RA Gerhard D.S., Goodstein D., Graves T., Grigoriev I.V., Grimwood J.,
RA Kawashima T., Lindquist E., Lucas S.M., Mead P.E., Mitros T., Ogino H.,
RA Ohta Y., Poliakov A.V., Pollet N., Robert J., Salamov A., Sater A.K.,
RA Schmutz J., Terry A., Vize P.D., Warren W.C., Wells D., Wills A.,
RA Wilson R.K., Zimmerman L.B., Zorn A.M., Grainger R., Grammer T.,
RA Khokha M.K., Richardson P.M., Rokhsar D.S.;
RT "The genome of the Western clawed frog Xenopus tropicalis.";
RL Science 328:633-636(2010).
RN [3] {ECO:0000313|EMBL:OCA19943.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=Nigerian {ECO:0000313|EMBL:OCA19943.1};
RA Sessions A., Jenkins J., Mitros T., Lyons J.T., Dichmann D.S., Robert J.,
RA Harland R.M., Rokhsar D.S.;
RT "WGS assembly of Xenopus tropicalis.";
RL Submitted (MAY-2016) to the EMBL/GenBank/DDBJ databases.
RN [4] {ECO:0000313|Ensembl:ENSXETP00000087381}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (MAY-2020) to UniProtKB.
RN [5] {ECO:0000313|RefSeq:XP_012816430.1}
RP IDENTIFICATION.
RC STRAIN=Nigerian {ECO:0000313|RefSeq:XP_012816430.1};
RC TISSUE=Liver and blood {ECO:0000313|RefSeq:XP_012816430.1};
RG RefSeq;
RL Submitted (NOV-2023) to UniProtKB.
CC -!- FUNCTION: GTP-specific succinyl-CoA synthetase functions in the citric
CC acid cycle (TCA), coupling the hydrolysis of succinyl-CoA to the
CC synthesis of 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_03221}.
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; EC=6.2.1.4; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_03221};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_03221};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000256|HAMAP-Rule:MF_03221};
CC -!- PATHWAY: Carbohydrate metabolism; tricarboxylic acid cycle; succinate
CC from succinyl-CoA (ligase route): step 1/1.
CC {ECO:0000256|ARBA:ARBA00005064, ECO:0000256|HAMAP-Rule:MF_03221}.
CC -!- SUBUNIT: Heterodimer of an alpha and a beta subunit. The beta subunit
CC determines specificity for GTP. {ECO:0000256|HAMAP-Rule:MF_03221}.
CC -!- SUBCELLULAR LOCATION: Mitochondrion {ECO:0000256|HAMAP-Rule:MF_03221}.
CC -!- SIMILARITY: Belongs to the succinate/malate CoA ligase beta subunit
CC family. GTP-specific subunit beta subfamily. {ECO:0000256|HAMAP-
CC Rule:MF_03221}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; KV460360; OCA19943.1; -; Genomic_DNA.
DR RefSeq; XP_012816430.1; XM_012960976.3.
DR STRING; 8364.ENSXETP00000017828; -.
DR DNASU; 496495; -.
DR Ensembl; ENSXETT00000076844; ENSXETP00000087381; ENSXETG00000002522.
DR GeneID; 496495; -.
DR AGR; Xenbase:XB-GENE-956242; -.
DR CTD; 8801; -.
DR Xenbase; XB-GENE-956242; suclg2.
DR eggNOG; KOG1447; Eukaryota.
DR OMA; RCADEIQ; -.
DR OrthoDB; 1384037at2759; -.
DR Reactome; R-XTR-71403; Citric acid cycle (TCA cycle).
DR UniPathway; UPA00223; UER00999.
DR Proteomes; UP000008143; Chromosome 4.
DR Bgee; ENSXETG00000002522; Expressed in mesonephros and 14 other cell types or tissues.
DR GO; GO:0005739; C:mitochondrion; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:InterPro.
DR GO; GO:0005525; F:GTP 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:UniProtKB-EC.
DR GO; GO:0006104; P:succinyl-CoA metabolic process; IEA:InterPro.
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 HAMAP; MF_03221; Succ_CoA_betaG_euk; 1.
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; IPR034722; Succ_CoA_betaG_euk.
DR InterPro; IPR005809; Succ_CoA_ligase-like_bsu.
DR InterPro; IPR016102; Succinyl-CoA_synth-like.
DR NCBIfam; TIGR01016; sucCoAbeta; 1.
DR PANTHER; PTHR11815:SF21; SUCCINATE--COA LIGASE [GDP-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; PS01217; SUCCINYL_COA_LIG_3; 1.
PE 3: Inferred from homology;
KW GTP-binding {ECO:0000256|ARBA:ARBA00023134, ECO:0000256|HAMAP-
KW Rule:MF_03221};
KW Ligase {ECO:0000256|ARBA:ARBA00022598, ECO:0000256|HAMAP-Rule:MF_03221};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|HAMAP-Rule:MF_03221};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_03221};
KW Mitochondrion {ECO:0000256|ARBA:ARBA00023128, ECO:0000256|HAMAP-
KW Rule:MF_03221};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_03221}; Reference proteome {ECO:0000313|Proteomes:UP000008143};
KW Tricarboxylic acid cycle {ECO:0000256|HAMAP-Rule:MF_03221}.
FT DOMAIN 38..244
FT /note="ATP-grasp fold succinyl-CoA synthetase-type"
FT /evidence="ECO:0000259|Pfam:PF08442"
FT DOMAIN 306..425
FT /note="ATP-citrate synthase/succinyl-CoA ligase C-terminal"
FT /evidence="ECO:0000259|Pfam:PF00549"
FT BINDING 56
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03221"
FT BINDING 89..91
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03221"
FT BINDING 145
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03221"
FT BINDING 242
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03221"
FT BINDING 256
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03221"
FT BINDING 307
FT /ligand="substrate"
FT /ligand_note="ligand shared with subunit alpha"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03221"
FT BINDING 364..366
FT /ligand="substrate"
FT /ligand_note="ligand shared with subunit alpha"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03221"
FT SITE 78
FT /note="Important for substrate specificity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03221"
FT SITE 146
FT /note="Important for substrate specificity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03221"
SQ SEQUENCE 431 AA; 46553 MW; 0E3ED85ABF26DA45 CRC64;
MAASIAARAG NVLGSFTAKS ALLRTAQGVQ VSSRRWLNLQ EYQSKKLMAD HGVTVQRFFV
ADNANDALDA AKRLKAREIV LKAQILAGGR GKGTFDSGLK GGVHLTKDPN KVEELTKQMI
GYNLTTKQTV AGGVKVHKVM VAEALDISRE TYLAILMDRA CNGPVLVGSP QGGMDIEEVA
EKTPELIFKE EIDIFEGIKD SQALRMADNL GFKGPLQQQA AEQIKRLYHL FLKVDATQVE
VNPFGETPEG QVVCFDAKIN FDDNAEFRQK EIFAMDDTSE TDPIENEANS YDLKYIGMDG
NIACFVNGAG LAMATCDIID LHGGKPANFL DLGGGVKESQ VYQAFKLLTA DPKVEAILVN
IFGGIVNCAI IANGITKACR ELELKVPLVV RLEGTNVHEA KRILAESGLP ITSANDLDDA
ARKAVASIAK N
//
