KpATCC43816 Protein target profile

anthranilate synthase component II

Accession: VK055_1194

Gene: trpD AIK79817.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism 1 reaction UniProt A0A0H3GLX6
Length 531
Pocket druggability (P2Rank · AlphaFold DB model) 0.97
Metabolic reactions 1
Chokepoint Yes
Direct ligand evidence 0 67 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
No hit
Gut microbiome similarity
1.4% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
N
DEG identity (%)
56.995 Higher values support similarity to known essential genes.

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) 0.97
Structure A0A0H3GLX6
Pocket Pocket 1
Druggability (FPocket) 0.783
Structure A0A0H3GLX6
Pocket Pocket 23
ColabFold model
P2Rank 0.964 · Pocket 1
FPocket 0.567 · Pocket 6
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 67 / 4744 genomes with a hit
Prevalence 1.4%

Cross-references

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

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 Phenylalanine, tyrosine and tryptophan biosynthesis, no isoenzyme backup detected, more central than 94.3% of genes in this genome, no human homolog detected.

Relative network centrality 94.3% more central than 94.3% 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.

MADILLLDNIDSFTYNLADQLRANGHNVVIYRNSVPAQALIERLGTMDNPVLMLSPGPGTPSEAGCMPELLTRMRGKLPIIGICLGHQAIVEAYGGYVGQAGEILHGKASSIEHDGQAMFAGLANPLPVARYHSLVGSNIPAGLTINANFNGMVMAVRHDADRVCGFQFHPESILTTQGARLLEQTLAWALQKLEHTNTLQPILEKLYQAETLSQQESHQLFSAVVRGEVKPEQLAAALVSMKVRGEQPQEIAGAATALLENAAPFPRPDYLFADIVGTGGDGSNSINISTASAFVAAACGLKVAKHGNRSVSSKSGSSDLLAAFGINLDMNADKSRAALDELGVCFLFAPKYHTGFRHAMPVRQQLKTRTLFNVLGPLINPAHPPLALIGVYSPELVLPIAETLRVLGYQRAAVVHSGGMDEVSLHAPTVVAELHNGEIKSYQLTADDFGLTPYHQAQLAGGTPEENRDILTRLLQGKGEAAHEAAVAANVAMLMRLHGHEDLKANAQQVLDVLHSGAAYDRVTALAARG

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

3 GO

Subcellular localization

Localization
Cytoplasmic

Gene Ontology (GO)

3
  • GO:0004048 Catalysis of the reaction: N-(5-phospho-beta-D-ribosyl)anthranilate + diphosphate = 5-phospho-alpha-D-ribose 1-diphosphate + anthranilate.
  • GO:0016757 Catalysis of the transfer of a glycosyl group from one compound (donor) to another (acceptor).
  • 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.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

42 records
Show feature table
Start End DB Term Name
197 524 PANTHER PTHR43285 ANTHRANILATE PHOSPHORIBOSYLTRANSFERASE
197 524 InterPro IPR005940 Anthranilate phosphoribosyl transferase
192 275 FunFam G3DSA:1.20.970.10:FF:000003 Anthranilate phosphoribosyltransferase
204 528 NCBIfam TIGR01245 anthranilate phosphoribosyltransferase
204 528 InterPro IPR005940 Anthranilate phosphoribosyl transferase
273 521 Pfam PF00591 Glycosyl transferase family, a/b domain
273 521 InterPro IPR000312 Glycosyl transferase, family 3
52 61 PRINTS PR00096 Glutamine amidotransferase superfamily signature
166 179 PRINTS PR00096 Glutamine amidotransferase superfamily signature
79 90 PRINTS PR00096 Glutamine amidotransferase superfamily signature
269 530 FunFam G3DSA:3.40.1030.10:FF:000002 Anthranilate phosphoribosyltransferase
4 186 NCBIfam TIGR00566 glutamine amidotransferase of anthranilate synthase or aminodeoxychorismate synthase
4 186 InterPro IPR006221 Anthranilate synthase/para-aminobenzoate synthase like domain
192 275 Gene3D G3DSA:1.20.970.10 Transferase, Pyrimidine Nucleoside Phosphorylase; Chain C
4 187 CDD cd01743 GATase1_Anthranilate_Synthase
4 187 InterPro IPR006221 Anthranilate synthase/para-aminobenzoate synthase like domain
79 95 PRINTS PR00099 Carbamoyl-phosphate synthase protein GATase domain signature
49 63 PRINTS PR00099 Carbamoyl-phosphate synthase protein GATase domain signature
3 196 ProSiteProfiles PS51273 Glutamine amidotransferase type 1 domain profile.
202 262 Pfam PF02885 Glycosyl transferase family, helical bundle domain
202 262 InterPro IPR017459 Glycosyl transferase family 3, N-terminal domain
2 191 Gene3D G3DSA:3.40.50.880 -
2 191 InterPro IPR029062 Class I glutamine amidotransferase-like
6 186 Pfam PF00117 Glutamine amidotransferase class-I
6 186 InterPro IPR017926 Glutamine amidotransferase
2 191 FunFam G3DSA:3.40.50.880:FF:000021 Anthranilate phosphoribosyltransferase
3 191 SUPERFAMILY SSF52317 Class I glutamine amidotransferase-like
3 191 InterPro IPR029062 Class I glutamine amidotransferase-like
269 527 SUPERFAMILY SSF52418 Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain
269 527 InterPro IPR035902 Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain superfamily
276 530 Gene3D G3DSA:3.40.1030.10 Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain
276 530 InterPro IPR035902 Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain superfamily
200 266 SUPERFAMILY SSF47648 Nucleoside phosphorylase/phosphoribosyltransferase N-terminal domain
200 266 InterPro IPR036320 Glycosyl transferase family 3, N-terminal domain superfamily
124 136 PRINTS PR00097 Anthranilate synthase component II signature
4 18 PRINTS PR00097 Anthranilate synthase component II signature
79 90 PRINTS PR00097 Anthranilate synthase component II signature
104 112 PRINTS PR00097 Anthranilate synthase component II signature
166 179 PRINTS PR00097 Anthranilate synthase component II signature
52 61 PRINTS PR00097 Anthranilate synthase component II signature
202 530 Hamap MF_00211 Anthranilate phosphoribosyltransferase [trpD].
202 530 InterPro IPR005940 Anthranilate phosphoribosyl transferase

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.

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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
0.97
Likely same site as FPocket 23 2.1 Å 39 shared residues 100% of smaller site
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Surrounding area
Pocket 2 P2Rank #2
0.183
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Surrounding area
Pocket 3 P2Rank #3
0.009
Show in viewer
Surrounding area
Pocket 4 P2Rank #4
0.006
Show in viewer
Surrounding area

Binding pockets · FPocket

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

Pocket 1 FPocket #23
0.783 Unusual size
Likely same site as P2Rank 1 2.1 Å 39 shared residues 100% of smaller site
Show in viewer
Surrounding area
Residue sets
UniProt: Binding site:278-278
UniProt: Binding site:281-282
UniProt: Binding site:286-286
UniProt: Binding site:288-291
UniProt: Binding site:290-290
UniProt: Binding site:306-314
UniProt: Binding site:309-309
UniProt: Binding site:318-318
UniProt: Binding site:364-364
UniProt: Binding site:422-422
UniProt: Binding site:423-423
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_A0A0H3GLX6
AlphaFold DB full sequence Viewing
ColabFold VK055_1194
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.

67 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 17 records from similar proteins
Structural ligands 17 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
17C PDB via homolog 257.2 Da · LogP 2.83 · TPSA 86.6 Open detail RCSB PDB
4M0 PDB via homolog Detail RCSB PDB
59L PDB via homolog Detail RCSB PDB
61L PDB via homolog Detail RCSB PDB
62L 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
17C RCSB PDB P9WFX5 257.2 Da LogP 2.83 TPSA 86.6 ✓ Ro5 ✓ Clean c1ccc(c(c1)C(=O)O)Nc2ccccc2C(=O)O
4M0 RCSB PDB P9WFX5 151.2 Da LogP 1.28 TPSA 63.3 ✓ Ro5 ✓ Clean Cc1ccc(c(c1)N)C(=O)O
59L RCSB PDB A5U4M0 316.3 Da LogP 3.04 TPSA 129.8 ✓ Ro5 ✓ Clean Cc1cccc(c1Nc2cc(ccc2C(=O)O)[N+](=O)[O-])C(=O)O
61L RCSB PDB A5U4M0 287.4 Da LogP 4.47 TPSA 49.3 ✓ Ro5 ✓ Clean Cc1ccc(c(c1)Nc2c(cccc2SC)C)C(=O)O
62L RCSB PDB A5U4M0 319.4 Da LogP 3.15 TPSA 83.5 ✓ Ro5 ✓ Clean Cc1ccc(c(c1)Nc2c(cccc2S(=O)(=O)C)C)C(=O)O
644 RCSB PDB P9WFX5 392.4 Da LogP 4.27 TPSA 136.0 ✓ Ro5 ✓ Clean c1ccc(c(c1)C(=O)O)Nc2cccc(c2C(=O)O)Nc3ccccc3C(=…
7P1 RCSB PDB A5U4M0 395.3 Da LogP 2.77 TPSA 153.4 ✓ Ro5 Alert c1ccc(c(c1)C(=O)O)Nc2ccc(cc2C(=O)O)OCCCP(=O)(O)O
7P2 RCSB PDB A5U4M0 409.3 Da LogP 3.16 TPSA 153.4 ✓ Ro5 Alert c1ccc(c(c1)C(=O)O)Nc2ccc(cc2C(=O)O)OCCCCP(=O)(O…
7P3 RCSB PDB P9WFX5 423.4 Da LogP 3.55 TPSA 153.4 ✓ Ro5 Alert c1ccc(c(c1)C(=O)O)Nc2ccc(cc2C(=O)O)OCCCCCP(=O)(…
BE2 RCSB PDB P9WFX5 137.1 Da LogP 0.97 TPSA 63.3 ✓ Ro5 ✓ Clean c1ccc(c(c1)C(=O)O)N
BEN RCSB PDB P9WFX5 120.2 Da LogP 0.97 TPSA 49.9 ✓ Ro5 ✓ Clean [H]/N=C(\c1ccccc1)/N
CXS RCSB PDB Q8PD71 221.3 Da LogP 1.19 TPSA 66.4 ✓ Ro5 ✓ Clean C1CCC(CC1)NCCCS(=O)(=O)O
FA0 RCSB PDB P9WFX5 155.1 Da LogP 1.11 TPSA 63.3 ✓ Ro5 ✓ Clean c1cc(c(cc1F)N)C(=O)O
MLT RCSB PDB P9WFX5 134.1 Da LogP -1.09 TPSA 94.8 ✓ Ro5 ✓ Clean C([C@H](C(=O)O)O)C(=O)O
POP RCSB PDB P9WFX5 176.0 Da LogP -2.08 TPSA 129.9 ✓ Ro5 ✓ Clean O[P@@](=O)([O-])O[P@@](=O)(O)[O-]
PRP RCSB PDB A5U4M0 390.1 Da LogP -2.23 TPSA 229.7 1 viol. ✓ Clean C([C@@H]1[C@H]([C@H]([C@H](O1)O[P@@](=O)(O)OP(=…
TA7 RCSB PDB A5U4M0 246.2 Da LogP 2.40 TPSA 43.4 ✓ Ro5 ✓ Clean COc1ccc(cc1)C(=O)CC(=O)C(F)(F)F

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.