HAMAP rule MF_00558
General rule information
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| PURL | https://purl.expasy.org/hamap/rule/MF_00558 |
| Accession | MF_00558 |
| Dates | 23-MAY-2002 (Created)
3-SEP-2024 (Last updated, Version 38) |
| Name | Succ_CoA_beta |
| Scope(s) |
Bacteria Archaea |
| Template(s) | P0A836 (SUCC_ECOLI); P25126 (SUCC_THETH); P80886 (SUCC_BACSU); P53590 (SUCB2_PIG); [ Recover all ] |
| Triggered by |
case c? <OC:Bacteria> or <OC:Archaea>
HAMAP; MF_00558 (Get profile general information and statistics) end case
|
Propagated annotation
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Identifier, protein and gene names
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| Identifier | SUCC |
| Protein name | RecName: Full=Succinate--CoA ligase [ADP-forming] subunit beta; EC=6.2.1.5; AltName: Full=Succinyl-CoA synthetase subunit beta; Short=SCS-beta; |
| Gene name | Name=sucC; |
Comments
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| FUNCTION | Succinyl-CoA synthetase functions in the citric acid cycle (TCA), coupling the hydrolysis of succinyl-CoA to the synthesis of either ATP or GTP and thus represents the only step of substrate-level phosphorylation in the TCA. The beta subunit provides nucleotide specificity of the enzyme and binds the substrate succinate, while the binding sites for coenzyme A and phosphate are found in the alpha subunit. |
| CATALYTIC ACTIVITY | Reaction=succinate + ATP + CoA = succinyl-CoA + ADP + phosphate; Xref=Rhea:RHEA:17661, ChEBI:CHEBI:30031, ChEBI:CHEBI:30616, ChEBI:CHEBI:43474, ChEBI:CHEBI:57287, ChEBI:CHEBI:57292, ChEBI:CHEBI:456216; EC=6.2.1.5; PhysiologicalDirection=right-to-left; Xref=Rhea:RHEA:17663; |
| CATALYTIC ACTIVITY | Reaction=GTP + succinate + CoA = succinyl-CoA + GDP + phosphate; Xref=Rhea:RHEA:22120, ChEBI:CHEBI:30031, ChEBI:CHEBI:37565, ChEBI:CHEBI:43474, ChEBI:CHEBI:57287, ChEBI:CHEBI:57292, ChEBI:CHEBI:58189; PhysiologicalDirection=right-to-left; Xref=Rhea:RHEA:22122; |
| case <FTGroup:1> | |
| COFACTOR | Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Note=Binds 1 Mg(2+) ion per subunit.; |
| end case | |
| PATHWAY | Carbohydrate metabolism; tricarboxylic acid cycle; succinate from succinyl-CoA (ligase route): step 1/1. |
| SUBUNIT | Heterotetramer of two alpha and two beta subunits. |
| SIMILARITY | Belongs to the succinate/malate CoA ligase beta subunit family. |
Keywords
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| ATP-binding | |
| Ligase | |
| case <FTGroup:1> | |
| Magnesium | |
| Metal-binding | |
| end case | |
| Nucleotide-binding | |
| Tricarboxylic acid cycle | |
Gene Ontology
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| GO:0005524; Molecular function:ATP binding | |
| case <FTGroup:1> | |
| GO:0000287; Molecular function:magnesium ion binding | |
| end case | |
| GO:0004775; Molecular function:succinate-CoA ligase (ADP-forming) activity | |
| GO:0006099; Biological process:tricarboxylic acid cycle | |
Cross-references
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| PROSITE | PS01217; SUCCINYL_COA_LIG_3; 1; |
| PROSITE | PS50975; ATP_GRASP; 1; |
| Pfam | PF08442; ATP-grasp_2; 1; |
| Pfam | PF00549; Ligase_CoA; 1; |
| NCBIfam | TIGR01016; SucCoAbeta; 1; |
| PIRSF | PIRSF001554; SucCS_beta; 1; |
Features
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| From: SUCC_ECOLI (P0A836) | ||||||||||||
| Key | From | To | Description | Tag | Condition | FTGroup | ||||||
| case <Feature:PS50975> | ||||||||||||
| DOMAIN | 9 | 244 | /note="ATP-grasp" | |||||||||
| end case | ||||||||||||
| BINDING | 53 | 55 | /ligand="ATP" /ligand_id="ChEBI:CHEBI:30616" |
G-R-G | ||||||||
| BINDING | 321 | 323 | /ligand="substrate" /ligand_note="ligand shared with subunit alpha" |
G-I-[VAMTL] | ||||||||
| BINDING | 199 | 199 | /ligand="Mg(2+)" /ligand_id="ChEBI:CHEBI:18420" |
N | 1 | |||||||
| BINDING | 213 | 213 | /ligand="Mg(2+)" /ligand_id="ChEBI:CHEBI:18420" |
D | 1 | |||||||
| BINDING | 46 | 46 | /ligand="ATP" /ligand_id="ChEBI:CHEBI:30616" |
K | ||||||||
| BINDING | 99 | 99 | /ligand="ATP" /ligand_id="ChEBI:CHEBI:30616" |
E | ||||||||
| BINDING | 102 | 102 | /ligand="ATP" /ligand_id="ChEBI:CHEBI:30616" |
|||||||||
| BINDING | 107 | 107 | /ligand="ATP" /ligand_id="ChEBI:CHEBI:30616" |
E | ||||||||
| BINDING | 264 | 264 | /ligand="substrate" /ligand_note="ligand shared with subunit alpha" |
N | ||||||||
Additional information
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| Size range | 364-399 amino acids |
| Related rules |
MF_03220 MF_03221 |
| Fusion | Nter: None Cter: None |
| Comments | It is not possible to automatically make a distinction between a bona-fide sucC and mtkA (not shown in alignment). |