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Overview

Uniprot IDA0A8I6AHY6
Protein NameSuccinate--CoA ligase [GDP-forming] subunit beta, mitochondrial
Gene NameSuclg2
OrganismRattus norvegicus

Kla Sites from experimental identification

Position Flanking peptide
103 ILAGGRGKGVFDSGL

Function

GTP-specific succinyl-CoA synthetase functions in the citric acid cycle (TCA), coupling the hydrolysis of succinyl-CoA to the synthesis of 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. Also able to act as a GTP-specific itaconyl- and malyl-CoA synthetase

Protein Sequence

10 MALGFLVKMA 20 SAVAIAAQAG 30 KLLRERSLRP 40 RLLAVRSQAG 50 HLTPRRWLNL 60 QEYQSKKLMS 70 EHGVRVQRFF 80 VASTAKEAQE 90 AAKRLNAKEI 100 VLKAQILAGG 110 RGKGVFDSGL 120 KGGVHLTKDP 130 KVVGQLAQQM 140 IGYNLATKQT 150 PKEGVKVNKV 160 MVAEALDISR 170 ETYLAILMDR 180 SHNGPVLVGS 190 PQGGVDIEEV 200 AASSPELIFK 210 EQIDIFEGIK 220 DSQAQRMAEN 230 LGFLGSLKNQ 240 AADQIKKLYH 250 LFLKIDATQV 260 EVNPFGETPE 270 GQVVCFDAKI 280 NFDDNAEFRQ 290 KDIFAMDDKS 300 ENEPIENEAA 310 RYDLKYIGLD 320 GNIACFVNGA 330 GLAMATCDII 340 FLNGGKPANF 350 LDLGGGVKES 360 QVYQAFKLLT 370 SDPKVEAILV 380 NIFGGIVNCA 390 IIANGITKAC 400 QELELKVPLV 410 VRLEGTNVQE 420 AQNILKSSGL 430 PITSAVDLED 440 AAKKAVASVA KK

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005759 mitochondrial matrix
Cellular Component GO:0032991 protein-containing complex
Cellular Component GO:0045244 succinate-CoA ligase complex (GDP-forming)
Molecular Function GO:0005524 ATP binding
Molecular Function GO:0019003 GDP binding
Molecular Function GO:0005525 GTP binding
Molecular Function GO:0000287 magnesium ion binding
Molecular Function GO:0044877 protein-containing complex binding
Molecular Function GO:0004775 succinate-CoA ligase (ADP-forming) activity
Molecular Function GO:0004776 succinate-CoA ligase (GDP-forming) activity
Biological Process GO:0006105 succinate metabolic process
Biological Process GO:0006104 succinyl-CoA metabolic process
Biological Process GO:0006099 tricarboxylic acid cycle

Reference

[1] Chen Y, Sun W, Sun Z, Zhao H, Wu T et al.. Effect of electroacupuncture on hippocampal protein lactylation in a rat model of vascular dementia.. Front Neurol 16:1629474. 2025. PMID: 40963935.