ID U6EEK8_9EURY Unreviewed; 286 AA.
AC U6EEK8;
DT 22-JAN-2014, integrated into UniProtKB/TrEMBL.
DT 22-JAN-2014, sequence version 1.
DT 27-MAR-2024, entry version 57.
DE RecName: Full=Succinate--CoA ligase [ADP-forming] subunit alpha {ECO:0000256|HAMAP-Rule:MF_01988};
DE EC=6.2.1.5 {ECO:0000256|HAMAP-Rule:MF_01988};
DE AltName: Full=Succinyl-CoA synthetase subunit alpha {ECO:0000256|HAMAP-Rule:MF_01988};
DE Short=SCS-alpha {ECO:0000256|HAMAP-Rule:MF_01988};
GN Name=sucD {ECO:0000256|HAMAP-Rule:MF_01988,
GN ECO:0000313|EMBL:CDG65454.1};
GN ORFNames=MBMB1_1356 {ECO:0000313|EMBL:CDG65454.1};
OS Methanobacterium sp. MB1.
OC Archaea; Euryarchaeota; Methanomada group; Methanobacteria;
OC Methanobacteriales; Methanobacteriaceae; Methanobacterium.
OX NCBI_TaxID=1379702 {ECO:0000313|EMBL:CDG65454.1, ECO:0000313|Proteomes:UP000017867};
RN [1] {ECO:0000313|EMBL:CDG65454.1, ECO:0000313|Proteomes:UP000017867}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MB1 {ECO:0000313|Proteomes:UP000017867};
RA Maus I., Wibberg D., Stantscheff R., Cibis K., Eikmeyer F.G., Puehler A.,
RA Koenig H., Schlueter A.;
RT "Methanobacterium sp. Mb1.";
RL Submitted (JUL-2013) to the EMBL/GenBank/DDBJ databases.
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 alpha subunit of the enzyme binds the
CC substrates coenzyme A and phosphate, while succinate binding and
CC nucleotide specificity is provided by the beta subunit.
CC {ECO:0000256|HAMAP-Rule:MF_01988, ECO:0000256|RuleBase:RU000699}.
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_01988, ECO:0000256|RuleBase:RU000699};
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_01988};
CC -!- PATHWAY: Carbohydrate metabolism; tricarboxylic acid cycle; succinate
CC from succinyl-CoA (ligase route): step 1/1. {ECO:0000256|HAMAP-
CC Rule:MF_01988, ECO:0000256|RuleBase:RU000699}.
CC -!- SUBUNIT: Heterotetramer of two alpha and two beta subunits.
CC {ECO:0000256|HAMAP-Rule:MF_01988, ECO:0000256|RuleBase:RU000699}.
CC -!- SIMILARITY: Belongs to the succinate/malate CoA ligase alpha subunit
CC family. {ECO:0000256|HAMAP-Rule:MF_01988,
CC ECO:0000256|RuleBase:RU000677}.
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DR EMBL; HG425166; CDG65454.1; -; Genomic_DNA.
DR AlphaFoldDB; U6EEK8; -.
DR STRING; 1379702.MBMB1_1356; -.
DR KEGG; meth:MBMB1_1356; -.
DR PATRIC; fig|1379702.4.peg.1349; -.
DR HOGENOM; CLU_052104_0_0_2; -.
DR BioCyc; MSP1379702:MBMB1_RS06565-MONOMER; -.
DR UniPathway; UPA00223; UER00999.
DR Proteomes; UP000017867; Chromosome.
DR GO; GO:0043758; F:acetate-CoA ligase (ADP-forming) activity; IEA:UniProtKB-EC.
DR GO; GO:0000166; F:nucleotide binding; IEA:UniProtKB-KW.
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; 3.40.50.720; NAD(P)-binding Rossmann-like Domain; 1.
DR Gene3D; 3.40.50.261; Succinyl-CoA synthetase domains; 1.
DR HAMAP; MF_01988; Succ_CoA_alpha; 1.
DR InterPro; IPR017440; Cit_synth/succinyl-CoA_lig_AS.
DR InterPro; IPR033847; Citrt_syn/SCS-alpha_CS.
DR InterPro; IPR003781; CoA-bd.
DR InterPro; IPR005810; CoA_lig_alpha.
DR InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR InterPro; IPR005811; SUCC_ACL_C.
DR InterPro; IPR016102; Succinyl-CoA_synth-like.
DR NCBIfam; TIGR01019; sucCoAalpha; 1.
DR PANTHER; PTHR11117:SF2; SUCCINATE--COA LIGASE [ADP_GDP-FORMING] SUBUNIT ALPHA, MITOCHONDRIAL; 1.
DR PANTHER; PTHR11117; SUCCINYL-COA LIGASE SUBUNIT ALPHA; 1.
DR Pfam; PF02629; CoA_binding; 1.
DR Pfam; PF00549; Ligase_CoA; 1.
DR PIRSF; PIRSF001553; SucCS_alpha; 1.
DR PRINTS; PR01798; SCOASYNTHASE.
DR SMART; SM00881; CoA_binding; 1.
DR SUPFAM; SSF51735; NAD(P)-binding Rossmann-fold domains; 1.
DR SUPFAM; SSF52210; Succinyl-CoA synthetase domains; 1.
DR PROSITE; PS01216; SUCCINYL_COA_LIG_1; 1.
DR PROSITE; PS00399; SUCCINYL_COA_LIG_2; 1.
PE 3: Inferred from homology;
KW Ligase {ECO:0000256|HAMAP-Rule:MF_01988, ECO:0000256|RuleBase:RU000677};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_01988}; Reference proteome {ECO:0000313|Proteomes:UP000017867};
KW Tricarboxylic acid cycle {ECO:0000256|ARBA:ARBA00022532, ECO:0000256|HAMAP-
KW Rule:MF_01988}.
FT DOMAIN 3..98
FT /note="CoA-binding"
FT /evidence="ECO:0000259|SMART:SM00881"
FT ACT_SITE 245
FT /note="Tele-phosphohistidine intermediate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01988,
FT ECO:0000256|PIRSR:PIRSR001553-1"
FT BINDING 16..19
FT /ligand="CoA"
FT /ligand_id="ChEBI:CHEBI:57287"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01988"
FT BINDING 42
FT /ligand="CoA"
FT /ligand_id="ChEBI:CHEBI:57287"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01988"
FT BINDING 94..96
FT /ligand="CoA"
FT /ligand_id="ChEBI:CHEBI:57287"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01988"
FT BINDING 157
FT /ligand="substrate"
FT /ligand_note="ligand shared with subunit beta"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01988"
SQ SEQUENCE 286 AA; 30204 MW; 46128E3C4A455656 CRC64;
MIFLDEDTRC VVQGITGKQG SFHTKRMLNY HTNIVAGTSP GKGGQEFEGI PVYNSIAEVK
EEVDVNASII FIPAPFAKDA AFEAISHLEL AVIITEHIPV HDSMEIINYA LKNDCKIIGP
NTPGIITPGV GKLGIMPTHI FNPGDIGIVS RSGTLTYEVA SQITNAGLGQ STCLGIGGDP
VVGLDFAEVL QKFEEDPQTK AMVMIGEIGG NAEEKAAEYI AENITKPVVA YIAGRTAPPG
KRMGHAGAII EGEAGTAETK IKALKSAGVE VAQQPSQIAD IIKEII
//
