ID H3AZX5_LATCH Unreviewed; 384 AA.
AC H3AZX5;
DT 18-APR-2012, integrated into UniProtKB/TrEMBL.
DT 18-APR-2012, sequence version 1.
DT 27-MAR-2024, entry version 53.
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:0000256|HAMAP-Rule:MF_03221,
GN ECO:0000313|Ensembl:ENSLACP00000015196.1};
OS Latimeria chalumnae (Coelacanth).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Coelacanthiformes; Coelacanthidae; Latimeria.
OX NCBI_TaxID=7897 {ECO:0000313|Ensembl:ENSLACP00000015196.1, ECO:0000313|Proteomes:UP000008672};
RN [1] {ECO:0000313|Proteomes:UP000008672}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Wild caught {ECO:0000313|Proteomes:UP000008672};
RA Di Palma F., Alfoldi J., Johnson J., Berlin A., Gnerre S., Jaffe D.,
RA MacCallum I., Young S., Walker B.J., Lander E., Lindblad-Toh K.;
RT "The draft genome of Latimeria chalumnae.";
RL Submitted (AUG-2011) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|Ensembl:ENSLACP00000015196.1}
RP IDENTIFICATION.
RG Ensembl;
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}.
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DR EMBL; AFYH01126146; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR EMBL; AFYH01126147; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR EMBL; AFYH01126148; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR EMBL; AFYH01126149; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR EMBL; AFYH01126150; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR EMBL; AFYH01126151; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR EMBL; AFYH01126152; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR EMBL; AFYH01126153; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR EMBL; AFYH01126154; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR EMBL; AFYH01126155; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR AlphaFoldDB; H3AZX5; -.
DR STRING; 7897.ENSLACP00000015196; -.
DR Ensembl; ENSLACT00000015302.1; ENSLACP00000015196.1; ENSLACG00000013378.1.
DR eggNOG; KOG1447; Eukaryota.
DR GeneTree; ENSGT00390000010170; -.
DR HOGENOM; CLU_037430_0_1_1; -.
DR InParanoid; H3AZX5; -.
DR OMA; RCADEIQ; -.
DR TreeFam; TF300624; -.
DR UniPathway; UPA00223; UER00999.
DR Proteomes; UP000008672; Unassembled WGS sequence.
DR Bgee; ENSLACG00000013378; Expressed in chordate pharynx and 6 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:UP000008672};
KW Tricarboxylic acid cycle {ECO:0000256|HAMAP-Rule:MF_03221}.
FT DOMAIN 1..197
FT /note="ATP-grasp fold succinyl-CoA synthetase-type"
FT /evidence="ECO:0000259|Pfam:PF08442"
FT DOMAIN 259..378
FT /note="ATP-citrate synthase/succinyl-CoA ligase C-terminal"
FT /evidence="ECO:0000259|Pfam:PF00549"
FT BINDING 9
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03221"
FT BINDING 42..44
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03221"
FT BINDING 98
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03221"
FT BINDING 195
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03221"
FT BINDING 209
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03221"
FT BINDING 260
FT /ligand="substrate"
FT /ligand_note="ligand shared with subunit alpha"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03221"
FT BINDING 317..319
FT /ligand="substrate"
FT /ligand_note="ligand shared with subunit alpha"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03221"
FT SITE 31
FT /note="Important for substrate specificity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03221"
FT SITE 99
FT /note="Important for substrate specificity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03221"
SQ SEQUENCE 384 AA; 41167 MW; 599CFCB46C991E82 CRC64;
MAEHGVTVQR FFVADTANDA LEAAKNLKAK EIVLKAQILA GGRGKGVFNS GLKGGVHLSR
DPNAVGQLAK QMLGYSLITK QTPKDGVKVN KVMVAEALDI ARETYFAILM DRVCNGPVLV
GSPQGGVDIE EVAATNPDLI FKEIIDIYEG VKEDQALRMA ANLGFKGPLQ QQAADQIKKL
YNLFMKVDAT QVEVNPFGET PEGQVVCFDA KINFDDNAEF RQKEVFAMDD VSESDPLETE
AAKYDLKYIG MDGNIACFVN GAGLAMATCD IIDLHGGKPA NFLDLGGGVK EVQVYQAFKL
LTADPKVEAI LVNIFGGIVN CAIVANGITK ACRELELKVP LVVRLEGTNV QEAKHILSKS
GLPITAASDL EDAAKKVVAS VARK
//
