KpATCC43816 Protein target profile

O-succinylbenzoate-CoA ligase

Accession: VK055_4857

Gene: AIK83384.1 menE 3D evidence: AlphaFold DB model + ColabFold model Metabolism 1 reaction UniProt A0A0H3GT05
Length 458
Pocket druggability (P2Rank · AlphaFold DB model) 0.952
Metabolic reactions 1
Chokepoint Yes
Direct ligand evidence 0 62 total records
Functional annotation 0 EC 3 GO
Target summary

Strong target candidate with converging metabolic, structural and chemical evidence.

Automated synthesis of the evidence currently loaded. Review the underlying records before prioritizing this protein.

Terms and data sources used on this page

PDB: experimentally determined structures from the Protein Data Bank. These are the strongest structural evidence, but may cover only part of the protein.

AlphaFold DB model: a precomputed predicted structure downloaded from AlphaFold Database/UniProt, not an experiment performed here.

ColabFold model: a predicted structure generated for this workspace; interpret it with coverage and confidence.

pLDDT: confidence score for predicted structures. High values support local geometry; low values mean the region should not drive pocket interpretation.

FPocket / P2Rank: software tools that predict possible ligand-binding pockets on a 3D structure. They are useful screening signals, not experimental validation.

Druggability: a pocket-based estimate of whether a small molecule could bind productively. It does not mean a drug already exists.

PDB ligand: a compound observed in an experimental structure. Direct same-protein records are stronger than homolog-transferred records.

ChEMBL: a public database of measured compound bioactivity. Direct entries are stronger than entries transferred from similar proteins.

ZINC: a purchasable-compound database. Here it marks proposed candidates from chemical similarity, not measured binders.

LigQ / LigQ_2: an internal Target pipeline step that gathers PDB, ChEMBL, and ZINC ligand evidence for each protein.

Off-target: sequence similarity to proteins we prefer not to hit, such as human proteins or beneficial gut microbiome proteins.

DEG: Database of Essential Genes. A match suggests the protein resembles genes known to be essential in other organisms.

Roary / CoreCruncher: pan-genome tools used to decide whether a gene is core across analyzed strains or accessory/strain-specific.

EC / GO: functional annotations: EC describes enzyme reactions; GO describes biological process, molecular function, or cellular component.

KEGG pathway: a curated metabolic route label used here to group reactions imported from the metabolic model.

Chokepoint: a metabolic reaction that is the only producer or consumer of a metabolite in the imported model.

Prioritization evidence

Selectivity, essentiality, structural confidence, conservation, and predicted binding-site evidence.

Off-target risk

Human off-target
Hit
Human identity (%)
30.469 Lower values reduce human off-target concern.
Human E-value
2.57e-07
Gut microbiome similarity
2.1% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
Y
DEG identity (%)
74.115 Higher values support similarity to known essential genes.
DEG E-value
0.0 Smaller values mean stronger essential-gene similarity.

Structure confidence

ColabFold pLDDT
92.72 0-100 confidence; >70 supports local structural interpretation.

Binding-site evidence

AlphaFold DB / UniProt model

P2Rank's binding-site probability is the primary druggability signal shown across the app; FPocket's druggability score is shown alongside it for comparison. Both estimate small-molecule pocket quality after applying the curated structure priority — neither is experimental binding evidence. The 3D viewer may show a different loaded structure, so visible pockets can differ.

Druggability (P2Rank) 0.952
Structure A0A0H3GT05
Pocket Pocket 1
Druggability (FPocket) 0.121
Structure A0A0H3GT05
Pocket Pocket 19
ColabFold model
P2Rank 0.924 · Pocket 1
FPocket 0.245 · Pocket 14
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 98 / 4744 genomes with a hit
Prevalence 2.1%

Metabolic context

Reactions catalyzed, pathway membership, and centrality in the genome-scale metabolic network.

Explore metabolic network

Attractive metabolic target: catalyzes a producing & consuming chokepoint reaction in Ubiquinone and other terpenoid-quinone biosynthesis, no isoenzyme backup detected, more central than 94.4% of genes in this genome.

Relative network centrality 94.4% more central than 94.4% of genes in this genome
Chokepoint Chokepoint gene
Catalyzed reaction

1 reaction mapped to this gene in the metabolic model. Open the full network to see each one, with substrates/products and the reaction-reaction map.

Imported from KpATCC43816.sbml · 2026-07-09

Sequence

Primary amino-acid sequence viewer.

MTFNDWPWRHWRQRRGEALALRLNNQPLTWRELCARVDALASGFAAQGVMEGQGVALRAYNQPETLLAWLALLQCGARVLPLNPQLPAVLLQELLPALTVQHQLVLNGDTLPGNLPALTLQAAEGACAVCWHGDRLVSMTLTSGSTGLPKAAVHSANAHLASAAGVLALMPFAAGDDWLLSLPLFHVSGQGIVWRWLLAGARLTVRDKQPLAQMLHGCTHASLVPTQLWRLLNDDAAVSLKAVLLGGASIPVELTERARKQGIRSFCGYGLTEFASTVCAKEADGAADVGEALPGREVKIVAGEIWLRASTMAAGYWRDGQLLSLTNNEGWFATRDRGALHNGRLTVVGRMDNLFFSGGEGIQPEEVERVILAHPQVQQVFIVPLDDAEYGQRPVAVVECDDGCELSALAAWSAERLARFQQPVRWLRLPETLKNGGIKISRRALCEWVRQQTHATVS

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

3 GO

Subcellular localization

Localization
Cytoplasmic

Gene Ontology (GO)

3
  • GO:0008756 Catalysis of the reaction: 2-succinylbenzoate + ATP + CoA = 2-succinylbenzoyl-CoA + AMP + diphosphate.
  • GO:0009234 The chemical reactions and pathways resulting in the formation of any of the menaquinones. Structurally, menaquinones consist of a methylated naphthoquinone ring structure and side chains composed of a variable number of unsaturated isoprenoid residues. Menaquinones that have vitamin K activity and are known as vitamin K2.
  • GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

15 records
Show feature table
Start End DB Term Name
366 429 Pfam PF13193 AMP-binding enzyme C-terminal domain
366 429 InterPro IPR025110 AMP-binding enzyme, C-terminal domain
351 454 Gene3D G3DSA:3.30.300.30 -
351 454 InterPro IPR045851 AMP-binding enzyme, C-terminal domain superfamily
12 455 PANTHER PTHR43767 LONG-CHAIN-FATTY-ACID--COA LIGASE
135 449 CDD cd17630 OSB_MenE-like
8 452 SUPERFAMILY SSF56801 Acetyl-CoA synthetase-like
10 355 Pfam PF00501 AMP-binding enzyme
10 355 InterPro IPR000873 AMP-dependent synthetase/ligase domain
8 350 Gene3D G3DSA:3.40.50.12780 -
8 350 InterPro IPR042099 ANL, N-terminal domain
139 150 ProSitePatterns PS00455 Putative AMP-binding domain signature.
139 150 InterPro IPR020845 AMP-binding, conserved site
29 445 NCBIfam TIGR01923 o-succinylbenzoate--CoA ligase
29 445 InterPro IPR010192 2-succinylbenzoate--CoA ligase

3D structure

Selected loaded structure. Experimental PDB entries may cover only a portion of the sequence; AlphaFold DB and ColabFold models typically cover the full protein but remain computational predictions.

Download VMD script Full viewer

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Pocket score High Medium Low
How colors and pocket overlays are used
Uniform protein color marks the displayed model as a single molecular object.
Experimental PDB structures may be colored by chain to distinguish subunits or copies present in the file.
Pocket colors and alpha spheres are evidence overlays for predicted binding cavities; they are not alternative protein chains.
'Alpha spheres' is FPocket's own cavity-shape geometry, imported when available and aligned with the loaded structure.
'Pocket atoms'/'Predicted site atoms' show the pocket's residue atoms instead: P2Rank reports residues rather than alpha spheres, and FPocket falls back to this when alpha-sphere geometry is unavailable or doesn't align.
'No pocket geometry' means neither alpha spheres nor residue-position data could be found for that pocket; the layer just highlights the same residues as 'Nearby residues'.
Pocket details Inspect a specific pocket, or open the full viewer

Binding pockets · P2Rank

Druggability (P2Rank): high ≥ 0.5 · medium 0.2–0.49 · low < 0.2

Pocket 1 P2Rank #1
0.952
Show in viewer
Surrounding area
Pocket 2 P2Rank #2
0.134
Show in viewer
Surrounding area
Pocket 3 P2Rank #3
0.073
Show in viewer
Surrounding area
Pocket 4 P2Rank #4
0.055
Show in viewer
Surrounding area
Pocket 5 P2Rank #5
0.053
Show in viewer
Surrounding area
All structural evidence 0 experimental · 2 predicted

Structural evidence

0 + 2

Experimental PDB entries plus predicted AlphaFold DB or ColabFold models. Click Switch to display a different loaded structure in the viewer.

Entry Method Resolution Chain Coverage Links Status
AlphaFold DB AF_A0A0H3GT05
AlphaFold DB full sequence Viewing
ColabFold VK055_4857
ColabFold full sequence Loaded

Ligand evidence

Ligands grouped by evidence source. PDB ligands keep the source crystal visible, and loaded crystals can be opened directly in the structure viewer.

62 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 12 records from similar proteins
Structural ligands 12 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
00A PDB via homolog 485.8 Da · LogP 0.66 · TPSA 192.1 Open detail RCSB PDB
01A PDB via homolog Detail RCSB PDB
174 PDB via homolog Detail RCSB PDB
34Z PDB via homolog Detail RCSB PDB
3BZ PDB via homolog Detail RCSB PDB

Structural evidence inferred from similar proteins. The source crystal indicates where the ligand was observed; the UniProt column identifies the homologous protein carrying that ligand.

Show only:
Ligand Source crystal UniProt (homolog) MW · LogP · TPSA Lipinski PAINS SMILES
00A RCSB PDB Q8GN86 485.8 Da LogP 0.66 TPSA 192.1 1 viol. ✓ Clean c1cc(ccc1C(=O)O[P@@](=O)(O)OC[C@@H]2[C@H]([C@H]…
01A RCSB PDB Q8GN86 920.1 Da LogP 0.67 TPSA 363.6 3 viol. ✓ Clean CC(C)(CO[P@@](=O)(O)O[P@@](=O)(O)OC[C@@H]1[C@H]…
174 RCSB PDB Q8GN86 156.6 Da LogP 2.04 TPSA 37.3 ✓ Ro5 ✓ Clean c1cc(ccc1C(=O)O)Cl
34Z RCSB PDB Q8GN86 191.0 Da LogP 2.69 TPSA 37.3 ✓ Ro5 ✓ Clean c1cc(c(cc1C(=O)O)Cl)Cl
3BZ RCSB PDB Q8GN86 156.6 Da LogP 2.04 TPSA 37.3 ✓ Ro5 ✓ Clean c1cc(cc(c1)Cl)C(=O)O
4YB RCSB PDB P37353 550.5 Da LogP -1.23 TPSA 246.1 2 viol. ✓ Clean c1ccc(c(c1)C(=O)CCC(=O)NS(=O)(=O)OC[C@@H]2[C@H]…
ANP RCSB PDB Q5SKN9 506.2 Da LogP -2.06 TPSA 281.9 3 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…
JSA RCSB PDB P9WQ37 530.6 Da LogP 1.12 TPSA 194.9 2 viol. ✓ Clean CCCCCCCCCCC[C@H](NS(=O)(=O)OC[C@@H]1[C@H]([C@H]…
KOY RCSB PDB P37353 519.5 Da LogP 1.62 TPSA 182.9 2 viol. ✓ Clean c1ccc(c(c1)C(=O)CCc2cccc(c2)OC[C@@H]3[C@H]([C@H…
MLI RCSB PDB P9WQ37 102.0 Da LogP -3.12 TPSA 80.3 ✓ Ro5 ✓ Clean C(C(=O)[O-])C(=O)[O-]
OSB RCSB PDB P23971 222.2 Da LogP 1.43 TPSA 91.7 ✓ Ro5 ✓ Clean c1ccc(c(c1)C(=O)CCC(=O)O)C(=O)O
S0N RCSB PDB P23971 954.7 Da LogP -1.12 TPSA 430.0 3 viol. ✓ Clean CC(C)(CO[P@@](=O)(O)O[P@](=O)(O)OC[C@@H]1[C@H](…

PDB and ChEMBL records on this protein are shown in full. ChEMBL records from similar proteins are capped at the top 100 per protein (by pchembl) and ZINC at the top 50 (Tanimoto ≥ 0.5). ADME columns are descriptor-based screening flags, not experimental toxicity results.

Cross-references

External database identifiers for this protein, its structures, ligands, and metabolic reactions.