KpATCC43816 Protein target profile

aminodeoxychorismate synthase, component I

Accession: VK055_0122

Gene: pabB AIK78750.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism 3 reactions UniProt A0A0H3GZZ4
Length 451
Pocket druggability (P2Rank · AlphaFold DB model) 0.942
Metabolic reactions 3
Chokepoint No
Direct ligand evidence 0 56 total records
Functional annotation 1 EC 6 GO
Target summary

Promising target candidate with multiple supporting evidence streams.

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
No hit
Gut microbiome similarity
2.6% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

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

Structure confidence

ColabFold pLDDT
94.58 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) 0.942
Structure A0A0H3GZZ4
Pocket Pocket 1
Druggability (FPocket) 0.82
Structure A0A0H3GZZ4
Pocket Pocket 1
ColabFold model
P2Rank 0.949 · Pocket 1
FPocket 0.705 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 121 / 4744 genomes with a hit
Prevalence 2.6%

Metabolic context

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

Explore metabolic network

Metabolic context: more central than 90.2% of genes in this genome, no human homolog detected.

Relative network centrality 90.2% more central than 90.2% of genes in this genome
Chokepoint Not a chokepoint
Catalyzed reactions

3 reactions 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.

MLSPAIITLPWRPDAAEHYFAPLSALPWAMLLHSGFADHPHNRFDILVAAPRATLLTRGEQTWVDDGETVVVSAEDPLQLLQQQLDRQPFTPQPHDDLPFLGGALGLFGYDLGRRFERLPSHAQADIALADMAVGIYDWALIVDHQRQQISLLSYDDPQRRFQWLLAQSSPAMKPFALTSAWQSNMSRQQYGEKFRQVQAYLHSGDCYQVNLAQRFQASYVGDEWLAFRQLNAVNRAPFSAFIRLDEGAILSLSPERFIQLRQGEIQTRPIKGTLPRLDSPLADAQQAEKLANSPKDRAENLMIVDLMRNDIGRVAVPGSVRVPELFVVEPFPAVHHLVSTITARLPMTLHASDLLRAAFPGGSITGAPKVRAMEIIDELEPQRRNAWCGSIGYLSYCGNMDTSITIRTLTAWQGQLYCSAGGGIVADSEEAAEYQETFDKVNRILQQLEN

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 6 GO

Subcellular localization

Localization
Cytoplasmic

Enzyme Commission (EC)

1

Gene Ontology (GO)

6
  • GO:0009058 A cellular process consisting of the biochemical pathways by which a living organism synthesizes chemical substances. This typically represents the energy-requiring part of metabolism in which simpler substances are transformed into more complex ones.
  • GO:0009396 The chemical reactions and pathways resulting in the formation of folic acid and its derivatives.
  • GO:0046820 Catalysis of the reaction: L-glutamine + chorismate = 4-amino-4-deoxychorismate + L-glutamate. It is composed of two enzymatic activities (which may be present on one or two polypeptides); the first is a glutaminase which yields ammonia from glutamine, releasing glutamate. The ammonia is used by the second activity which catalyzes the amination of chorismate to form 4-amino-4-deoxychorismate.
  • GO:0046656 The chemical reactions and pathways resulting in the formation of folic acid, pteroylglutamic acid.
  • GO:0000162 The chemical reactions and pathways resulting in the formation of L-tryptophan, the chiral amino acid 2-amino-3-(1H-indol-3-yl)propanoic acid; L-tryptophan is synthesized from chorismate via anthranilate.
  • GO:0046654 The chemical reactions and pathways resulting in the formation of tetrahydrofolate, 5,6,7,8-tetrahydrofolic acid, a folate derivative bearing additional hydrogens on the pterin group.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

22 records
Show feature table
Start End DB Term Name
1 451 FunFam G3DSA:3.60.120.10:FF:000004 Aminodeoxychorismate synthase, component I
20 150 Pfam PF04715 Anthranilate synthase component I, N terminal region
20 150 InterPro IPR006805 Anthranilate synthase component I, N-terminal
105 445 NCBIfam TIGR00553 aminodeoxychorismate synthase component I
105 445 InterPro IPR005802 Aminodeoxychorismate synthase, component I
4 449 SUPERFAMILY SSF56322 ADC synthase
4 449 InterPro IPR005801 ADC synthase
30 448 PANTHER PTHR11236 AMINOBENZOATE/ANTHRANILATE SYNTHASE
30 448 InterPro IPR019999 Anthranilate synthase component I-like
398 412 PRINTS PR00095 Anthranilate synthase component I signature
398 412 InterPro IPR019999 Anthranilate synthase component I-like
289 302 PRINTS PR00095 Anthranilate synthase component I signature
289 302 InterPro IPR019999 Anthranilate synthase component I-like
383 397 PRINTS PR00095 Anthranilate synthase component I signature
383 397 InterPro IPR019999 Anthranilate synthase component I-like
303 316 PRINTS PR00095 Anthranilate synthase component I signature
303 316 InterPro IPR019999 Anthranilate synthase component I-like
432 451 Coils Coil Coil
188 441 Pfam PF00425 chorismate binding enzyme
188 441 InterPro IPR015890 Chorismate-utilising enzyme, C-terminal
1 451 Gene3D G3DSA:3.60.120.10 Anthranilate synthase
1 451 InterPro IPR005801 ADC synthase

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

Loading 3D structure...

Drag to rotate — click the view, then scroll to zoom.

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
0.942
Likely same site as FPocket 29 2.4 Å 33 shared residues 94% of smaller site
Show in viewer
Surrounding area
Pocket 2 P2Rank #2
0.452
Show in viewer
Surrounding area
Pocket 3 P2Rank #3
0.355
Likely same site as FPocket 1 2.0 Å 16 shared residues 100% of smaller site
Show in viewer
Surrounding area
Pocket 4 P2Rank #4
0.113
Show in viewer
Surrounding area
Pocket 5 P2Rank #5
0.013
Show in viewer
Surrounding area

Binding pockets · FPocket

Druggability (FPocket): high ≥ 0.7 · medium 0.4–0.69 · low < 0.4

Pocket 1 FPocket #1
0.82 Unusual size
Likely same site as P2Rank 3 2.0 Å 16 shared residues 100% of smaller site
Show in viewer
Surrounding area
Pocket 2 FPocket #29
0.423 Unusual size
Likely same site as P2Rank 1 2.4 Å 33 shared residues 94% of smaller site
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_A0A0H3GZZ4
AlphaFold DB full sequence Viewing
ColabFold VK055_0122
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.

56 records
Chemistry signal

Structural and bioactivity evidence are both available for this target.

Direct evidence 0 same-protein records
Transferred evidence 6 records from similar proteins
Structural ligands 5 0 loaded crystals
Measured bioactivity 1 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
0GA PDB via homolog 238.2 Da · LogP 1.46 · TPSA 104.1 Open detail RCSB PDB
15P PDB via homolog Detail RCSB PDB
BEZ PDB via homolog Detail RCSB PDB
CPS PDB via homolog Detail RCSB PDB
PYR 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
0GA RCSB PDB P9WFX2 238.2 Da LogP 1.46 TPSA 104.1 ✓ Ro5 ✓ Clean C/C=C(/C(=O)O)\Oc1cccc(c1O)C(=O)O
15P RCSB PDB B2FR92 1529.8 Da LogP 0.17 TPSA 334.1 2 viol. ✓ Clean COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO…
BEZ RCSB PDB A0QX93 122.1 Da LogP 1.38 TPSA 37.3 ✓ Ro5 ✓ Clean c1ccc(cc1)C(=O)O
CPS RCSB PDB B2FR92 614.9 Da LogP 2.88 TPSA 147.0 1 viol. ✓ Clean C[C@H](CCC(=O)NCCC[N+](C)(C)CCCS(=O)(=O)[O-])[C…
PYR RCSB PDB A0QX93 88.1 Da LogP -0.34 TPSA 54.4 ✓ Ro5 ✓ Clean CC(=O)C(=O)O

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.