B2R8A1 · B2R8A1_HUMAN

  • Protein
    Succinate--CoA ligase [ADP/GDP-forming] subunit alpha, mitochondrial
  • Gene
    SUCLG1
  • Status
    UniProtKB unreviewed (TrEMBL)
  • Amino acids
  • Protein existence
    Evidence at transcript level
  • Annotation score
    3/5

Function

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 alpha subunit of the enzyme binds the substrates coenzyme A and phosphate, while succinate binding and specificity for either ATP or GTP is provided by different beta subunits.

Catalytic activity

Pathway

Carbohydrate metabolism; tricarboxylic acid cycle; succinate from succinyl-CoA (ligase route): step 1/1.

Features

Showing features for binding site, active site.

TypeIDPosition(s)Description
Binding site51-54CoA (UniProtKB | ChEBI)
Binding site77CoA (UniProtKB | ChEBI)
Binding site130-132CoA (UniProtKB | ChEBI)
Binding site194substrate; ligand shared with subunit beta
Active site286Tele-phosphohistidine intermediate

GO annotations

AspectTerm
Cellular Componentmitochondrion
Cellular Componentsuccinate-CoA ligase complex (ADP-forming)
Molecular Functionnucleotide binding
Molecular Functionsuccinate-CoA ligase (ADP-forming) activity
Molecular Functionsuccinate-CoA ligase (GDP-forming) activity
Biological Processtricarboxylic acid cycle

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    Succinate--CoA ligase [ADP/GDP-forming] subunit alpha, mitochondrial
  • EC number
  • Alternative names
    • Succinyl-CoA synthetase subunit alpha
      (SCS-alpha
      )

Gene names

    • Name
      SUCLG1

Organism names

  • Taxonomic identifier
  • Organism
  • Taxonomic lineage
    Eukaryota > Metazoa > Chordata > Craniata > Vertebrata > Euteleostomi > Mammalia > Eutheria > Euarchontoglires > Primates > Haplorrhini > Catarrhini > Hominidae > Homo

Accessions

  • Primary accession
    B2R8A1

Subcellular Location

Keywords

PTM/Processing

Proteomic databases

Interaction

Subunit

Heterodimer of an alpha and a beta subunit. Different beta subunits determine nucleotide specificity. Together with the ATP-specific beta subunit SUCLA2, forms an ADP-forming succinyl-CoA synthetase (A-SCS). Together with the GTP-specific beta subunit SUCLG2 forms a GDP-forming succinyl-CoA synthetase (G-SCS).

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain38-134CoA-binding

Sequence similarities

Belongs to the succinate/malate CoA ligase alpha subunit family.

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    333
  • Mass (Da)
    35,081
  • Last updated
    2008-07-01 v1
  • Checksum
    7E7167FAD3462982
MVSGSSGLAAARLLSRSFLLPQNGIRHCSYTASRQHLYVDKNTKIICQGFTGKQGTFHSQQALEYGTKLVGGTTPGKGGQTHLGLPVFNTVKEAKEQTGATASVIYVPPPFAAAAINEAIEAEIPLVVCITEGIPQQDMVRVKHKLLRQEKTRLIGPNCPGVINPGECKIGIMPGHIHKKGRIGIVSRSGTLTYEAVHQTTQVGLGQSLCVGIGGDPFNGTDFIDCLEIFLNDSATEGIILIGEIGGNAEENAAEFLKQHNSGPNSKPVVSFIAGLTAPPGRRMGHAGAIIAGGKGGAKEKISALQSAGVVVSMSPAQLGTTFYKEFEKRKML

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
AK313290
EMBL· GenBank· DDBJ
BAG36098.1
EMBL· GenBank· DDBJ
mRNA

Similar Proteins

Disclaimer

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