Promising target candidate with multiple supporting evidence streams.
Automated synthesis of the evidence currently loaded. Review the underlying records before prioritizing this protein.
Main supporting evidence
Risks to review
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
- 1.5% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.
Essentiality
- Essential (DEG)
- N
- DEG identity (%)
- 0.0 Higher values support similarity to known essential genes.
Structure confidence
- ColabFold pLDDT
- 92.54 0-100 confidence; >70 supports local structural interpretation.
Binding-site evidence
AlphaFold DB / UniProt modelP2Rank'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.
Sequence
Primary amino-acid sequence viewer.
MNYSLRQLKVFVTVARARSFSRAGEMIGLSQSAVSHSVKELEHQTGVRLLDRTTREVVLTEAGQQLAGRLERLLDELTITLRDAGRVGQQLSGTVKVAASQTISAHLIPQCIAHSNRRYPDIDFVLHDRPQQWVLESIRQGEVDFGIVIDPGPAADLQCEVVLAEPFLLLCREDHPFASLTEVPWQALQDERLILQDYASGSRPLIDAALSRLAIRANIVQEIGHPATLFPMVESGIGISVLPALALPLPQGSHLTVKRLTPVMERQLMLACRKNRSLSTAAQALWEIVREEGENLTAARVEDPLYQR
Functional annotations
Enzyme classification and Gene Ontology terms linked to this protein.
Subcellular localization
- Localization
- Cytoplasmic
Gene Ontology (GO)
4- GO:0006355 Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
- GO:0003700 A transcription regulator activity that modulates transcription of gene sets via selective and non-covalent binding to a specific double-stranded genomic DNA sequence (sometimes referred to as a motif) within a cis-regulatory region. Regulatory regions include promoters (proximal and distal) and enhancers. Genes are transcriptional units, and include bacterial operons.
- GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
- GO:0003677 Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
Sequence domains and features
Domain and signature matches imported from InterPro and related databases.
Show feature table
| Start | End | DB | Term | Name |
|---|---|---|---|---|
| 20 | 31 | PRINTS | PR00039 | LysR bacterial regulatory protein HTH signature |
| 20 | 31 | InterPro | IPR000847 | Transcription regulator HTH, LysR |
| 31 | 41 | PRINTS | PR00039 | LysR bacterial regulatory protein HTH signature |
| 31 | 41 | InterPro | IPR000847 | Transcription regulator HTH, LysR |
| 41 | 52 | PRINTS | PR00039 | LysR bacterial regulatory protein HTH signature |
| 41 | 52 | InterPro | IPR000847 | Transcription regulator HTH, LysR |
| 1 | 293 | PANTHER | PTHR30419 | HTH-TYPE TRANSCRIPTIONAL REGULATOR YBHD |
| 1 | 96 | FunFam | G3DSA:1.10.10.10:FF:000001 | LysR family transcriptional regulator |
| 94 | 289 | CDD | cd08440 | PBP2_LTTR_like_4 |
| 1 | 60 | ProSiteProfiles | PS50931 | LysR-type HTH domain profile. |
| 1 | 60 | InterPro | IPR000847 | Transcription regulator HTH, LysR |
| 5 | 64 | Pfam | PF00126 | Bacterial regulatory helix-turn-helix protein, lysR family |
| 5 | 64 | InterPro | IPR000847 | Transcription regulator HTH, LysR |
| 3 | 113 | SUPERFAMILY | SSF46785 | Winged helix DNA-binding domain |
| 3 | 113 | InterPro | IPR036390 | Winged helix DNA-binding domain superfamily |
| 89 | 296 | SUPERFAMILY | SSF53850 | Periplasmic binding protein-like II |
| 95 | 300 | Gene3D | G3DSA:3.40.190.290 | - |
| 1 | 83 | Gene3D | G3DSA:1.10.10.10 | - |
| 1 | 83 | InterPro | IPR036388 | Winged helix-like DNA-binding domain superfamily |
| 89 | 292 | Pfam | PF03466 | LysR substrate binding domain |
| 89 | 292 | InterPro | IPR005119 | LysR, substrate-binding |
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.
How colors and pocket overlays are used
Pocket details Inspect a specific pocket, or open the full viewer
- Method
- -
- Score
- -
- Visible layer
- -
- Residues
- -
- Pocket properties
- -
Selecting a pocket opens its details and centers the viewer without clearing other active layers. Use Focus this pocket when you want to hide the rest; use Surface for the wider residue environment.
Binding pockets · P2Rank
Druggability (P2Rank): high ≥ 0.5 · medium 0.2–0.49 · low < 0.2
Binding pockets · FPocket
Druggability (FPocket): high ≥ 0.7 · medium 0.4–0.69 · low < 0.4
Binding pockets · P2Rank
Druggability (P2Rank): high ≥ 0.5 · medium 0.2–0.49 · low < 0.2
Binding pockets · FPocket
Druggability (FPocket): high ≥ 0.7 · medium 0.4–0.69 · low < 0.4
All structural evidence
Structural evidence
0 + 2Experimental 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_A0A0H3H176
|
AlphaFold DB | — | — | full sequence | — | Viewing |
|
ColabFold
KP13_03560
|
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.
Structural ligand evidence is available for this target.
Highest-confidence structural evidence: ligands co-crystallized with this exact protein. If the source PDB is loaded in Target, use Open crystal to inspect it in the structure viewer.
No PDB structure with a co-crystallized ligand found for this exact protein.
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.
| Ligand | Source crystal | UniProt (homolog) | MW · LogP · TPSA | Lipinski | PAINS | SMILES |
|---|---|---|---|---|---|---|
| 1PS RCSB PDB | Q8NP91 | 201.2 Da LogP -0.09 TPSA 61.1 | ✓ Ro5 | ✓ Clean |
c1cc[n+](cc1)CCCS(=O)(=O)[O-]
|
|
| AKG RCSB PDB | P73862 | 146.1 Da LogP -0.50 TPSA 91.7 | ✓ Ro5 | ✓ Clean |
C(CC(=O)O)C(=O)C(=O)O
|
|
| FOR RCSB PDB | Q8NP91 | 30.0 Da LogP -0.18 TPSA 17.1 | ✓ Ro5 | ✓ Clean |
C=O
|
|
| PEO RCSB PDB | Q8NP91 | 34.0 Da LogP 0.02 TPSA 40.5 | ✓ Ro5 | ✓ Clean |
OO
|
|
| RUB RCSB PDB | Q9F1R2 | 310.1 Da LogP -2.50 TPSA 191.0 | 1 viol. | ✓ Clean |
C([C@H]([C@H](C(=O)COP(=O)(O)O)O)O)OP(=O)(O)O
|
|
| SKM RCSB PDB | Q8Y9N7 | 174.2 Da LogP -1.52 TPSA 98.0 | ✓ Ro5 | ✓ Clean |
C1[C@H]([C@@H]([C@@H](C=C1C(=O)O)O)O)O
|
Experimental bioactivity from ChEMBL measured directly on this protein. Score = pchembl (−log Ki/IC₅₀; higher = more potent).
No ChEMBL bioactivity data found for this exact protein.
Bioactivity inferred from similar proteins in ChEMBL. Score = pchembl (−log Ki/IC₅₀; higher = more potent).
No ChEMBL hits found through similar proteins.
Proposed virtual-screening candidates from ZINC. Score = Tanimoto similarity to a known binder (0–1; higher = more similar).
| Ligand | Tanimoto | MW · LogP · TPSA | Lipinski | PAINS | SMILES |
|---|---|---|---|---|---|
| ZINC3870277 ZINC | 1.000 | 310.1 Da LogP -2.50 TPSA 191.0 | 1 viol. | ✓ Clean |
O=C(COP(=O)(O)O)[C@H](O)[C@H](O)COP(=O)(O)O
|
| ZINC12502210 ZINC | 0.793 | 340.1 Da LogP -3.14 TPSA 211.3 | 1 viol. | ✓ Clean |
O=C(COP(=O)(O)O)[C@H](O)[C@H](O)[C@@H](O)COP(=O…
|
| ZINC12502212 ZINC | 0.793 | 340.1 Da LogP -3.14 TPSA 211.3 | 1 viol. | ✓ Clean |
O=C(COP(=O)(O)O)[C@H](O)[C@H](O)[C@H](O)COP(=O)…
|
| ZINC12502214 ZINC | 0.793 | 340.1 Da LogP -3.14 TPSA 211.3 | 1 viol. | ✓ Clean |
O=C(COP(=O)(O)O)[C@H](O)[C@@H](O)[C@@H](O)COP(=…
|
| ZINC12502216 ZINC | 0.793 | 340.1 Da LogP -3.14 TPSA 211.3 | 1 viol. | ✓ Clean |
O=C(COP(=O)(O)O)[C@H](O)[C@@H](O)[C@H](O)COP(=O…
|
| ZINC4523251 ZINC | 0.793 | 340.1 Da LogP -3.14 TPSA 211.3 | 1 viol. | ✓ Clean |
O=C(COP(=O)(O)O)[C@@H](O)[C@@H](O)[C@@H](O)COP(…
|
| ZINC4523255 ZINC | 0.793 | 340.1 Da LogP -3.14 TPSA 211.3 | 1 viol. | ✓ Clean |
O=C(COP(=O)(O)O)[C@@H](O)[C@@H](O)[C@H](O)COP(=…
|
| ZINC4523257 ZINC | 0.793 | 340.1 Da LogP -3.14 TPSA 211.3 | 1 viol. | ✓ Clean |
O=C(COP(=O)(O)O)[C@@H](O)[C@H](O)[C@@H](O)COP(=…
|
| ZINC4523259 ZINC | 0.793 | 340.1 Da LogP -3.14 TPSA 211.3 | 1 viol. | ✓ Clean |
O=C(COP(=O)(O)O)[C@@H](O)[C@H](O)[C@H](O)COP(=O…
|
| ZINC1529626 ZINC | 0.724 | 230.1 Da LogP -2.62 TPSA 144.5 | ✓ Ro5 | ✓ Clean |
O=C(CO)[C@H](O)[C@@H](O)COP(=O)(O)O
|
| ZINC1532567 ZINC | 0.724 | 230.1 Da LogP -2.62 TPSA 144.5 | ✓ Ro5 | ✓ Clean |
O=C(CO)[C@H](O)[C@H](O)COP(=O)(O)O
|
| ZINC1532851 ZINC | 0.724 | 230.1 Da LogP -2.62 TPSA 144.5 | ✓ Ro5 | ✓ Clean |
O=C(CO)[C@@H](O)[C@@H](O)COP(=O)(O)O
|
| ZINC30320708 ZINC | 0.724 | 230.1 Da LogP -2.62 TPSA 144.5 | ✓ Ro5 | ✓ Clean |
O=C(CO)[C@@H](O)[C@H](O)COP(=O)(O)O
|
| ZINC31259596 ZINC | 0.724 | 230.1 Da LogP -2.62 TPSA 144.5 | ✓ Ro5 | ✓ Clean |
O=C(COP(=O)(O)O)[C@@H](O)[C@H](O)CO
|
| ZINC31259600 ZINC | 0.724 | 230.1 Da LogP -2.62 TPSA 144.5 | ✓ Ro5 | ✓ Clean |
O=C(COP(=O)(O)O)[C@@H](O)[C@@H](O)CO
|
| ZINC3869804 ZINC | 0.724 | 230.1 Da LogP -2.62 TPSA 144.5 | ✓ Ro5 | ✓ Clean |
O=C(COP(=O)(O)O)[C@H](O)[C@@H](O)CO
|
| ZINC3869805 ZINC | 0.724 | 230.1 Da LogP -2.62 TPSA 144.5 | ✓ Ro5 | ✓ Clean |
O=C(COP(=O)(O)O)[C@H](O)[C@H](O)CO
|
| ZINC1560408815 ZINC | 0.656 | 339.1 Da LogP -1.87 TPSA 214.1 | 1 viol. | ✓ Clean |
[O]/C(COP(=O)(O)O)=C(/O)[C@H](O)[C@H](O)COP(=O)…
|
| ZINC5830339 ZINC | 0.645 | 231.1 Da LogP -2.68 TPSA 156.5 | 1 viol. | ✓ Clean |
O=C(NO)[C@H](O)[C@H](O)COP(=O)(O)O
|
| ZINC4521819 ZINC | 0.643 | 202.3 Da LogP 0.25 TPSA 58.3 | ✓ Ro5 | ✓ Clean |
O=S(=O)(O)CCC[n+]1ccccc1
|
| ZINC18140538 ZINC | 0.625 | 260.1 Da LogP -3.26 TPSA 164.8 | 1 viol. | ✓ Clean |
O=C(COP(=O)(O)O)[C@@H](O)[C@H](O)[C@H](O)CO
|
| ZINC100029384 ZINC | 0.594 | 244.1 Da LogP -2.23 TPSA 144.5 | ✓ Ro5 | ✓ Clean |
C[C@H](O)[C@@H](O)[C@@H](O)C(=O)COP(=O)(O)O
|
| ZINC4831627 ZINC | 0.593 | 370.5 Da LogP -0.21 TPSA 76.0 | ✓ Ro5 | ✓ Clean |
O=S(=O)(CC[n+]1ccccc1)CCS(=O)(=O)CC[n+]1ccccc1
|
| ZINC100065511 ZINC | 0.576 | 260.1 Da LogP -3.26 TPSA 164.8 | 1 viol. | ✓ Clean |
O=C(CO)[C@H](O)[C@H](O)[C@@H](O)COP(=O)(O)O
|
| ZINC100085043 ZINC | 0.576 | 260.1 Da LogP -3.26 TPSA 164.8 | 1 viol. | ✓ Clean |
O=C(CO)[C@H](O)[C@H](O)[C@H](O)COP(=O)(O)O
|
| ZINC104869937 ZINC | 0.576 | 260.1 Da LogP -3.26 TPSA 164.8 | 1 viol. | ✓ Clean |
O=C(CO)[C@H](O)[C@@H](O)[C@@H](O)COP(=O)(O)O
|
| ZINC13537943 ZINC | 0.576 | 260.1 Da LogP -3.26 TPSA 164.8 | 1 viol. | ✓ Clean |
O=C(CO)[C@H](O)[C@@H](O)[C@H](O)COP(=O)(O)O
|
| ZINC85994845 ZINC | 0.576 | 260.1 Da LogP -3.26 TPSA 164.8 | 1 viol. | ✓ Clean |
O=C(CO)[C@@H](O)[C@H](O)[C@H](O)COP(=O)(O)O
|
| ZINC22112620 ZINC | 0.567 | 216.3 Da LogP 0.64 TPSA 58.3 | ✓ Ro5 | ✓ Clean |
O=S(=O)(O)CCCC[n+]1ccccc1
|
| ZINC5132038 ZINC | 0.559 | 290.2 Da LogP -3.90 TPSA 185.0 | 1 viol. | ✓ Clean |
O=C(CO)[C@@H](O)[C@H](O)[C@H](O)[C@H](O)COP(=O)…
|
| ZINC12501558 ZINC | 0.545 | 276.1 Da LogP -3.38 TPSA 185.0 | 1 viol. | ✓ Clean |
O=C(O)[C@H](O)[C@H](O)[C@H](O)[C@@H](O)COP(=O)(…
|
| ZINC12501560 ZINC | 0.545 | 276.1 Da LogP -3.38 TPSA 185.0 | 1 viol. | ✓ Clean |
O=C(O)[C@H](O)[C@H](O)[C@H](O)[C@H](O)COP(=O)(O…
|
| ZINC12501562 ZINC | 0.545 | 276.1 Da LogP -3.38 TPSA 185.0 | 1 viol. | ✓ Clean |
O=C(O)[C@H](O)[C@H](O)[C@@H](O)[C@@H](O)COP(=O)…
|
| ZINC12501564 ZINC | 0.545 | 276.1 Da LogP -3.38 TPSA 185.0 | 1 viol. | ✓ Clean |
O=C(O)[C@H](O)[C@H](O)[C@@H](O)[C@H](O)COP(=O)(…
|
| ZINC1532623 ZINC | 0.545 | 276.1 Da LogP -3.38 TPSA 185.0 | 1 viol. | ✓ Clean |
O=C(O)[C@H](O)[C@@H](O)[C@H](O)[C@H](O)COP(=O)(…
|
| ZINC2047359 ZINC | 0.545 | 276.1 Da LogP -3.38 TPSA 185.0 | 1 viol. | ✓ Clean |
O=C(O)[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)COP(=O…
|
| ZINC2545091 ZINC | 0.545 | 276.1 Da LogP -3.38 TPSA 185.0 | 1 viol. | ✓ Clean |
O=C(O)[C@@H](O)[C@H](O)[C@@H](O)[C@@H](O)COP(=O…
|
| ZINC34481004 ZINC | 0.545 | 202.2 Da LogP -1.04 TPSA 87.0 | ✓ Ro5 | ✓ Clean |
CCOC(=O)C1=C[C@@H](O)[C@@H](O)[C@H](O)C1
|
| ZINC3869602 ZINC | 0.545 | 276.1 Da LogP -3.38 TPSA 185.0 | 1 viol. | ✓ Clean |
O=C(O)[C@@H](O)[C@@H](O)[C@@H](O)[C@@H](O)COP(=…
|
| ZINC3869603 ZINC | 0.545 | 276.1 Da LogP -3.38 TPSA 185.0 | 1 viol. | ✓ Clean |
O=C(O)[C@@H](O)[C@@H](O)[C@@H](O)[C@H](O)COP(=O…
|
| ZINC3869604 ZINC | 0.545 | 276.1 Da LogP -3.38 TPSA 185.0 | 1 viol. | ✓ Clean |
O=C(O)[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)COP(=O)…
|
| ZINC1634282 ZINC | 0.542 | 214.3 Da LogP 1.74 TPSA 7.8 | ✓ Ro5 | ✓ Clean |
c1cc[n+](CCCC[n+]2ccccc2)cc1
|
| ZINC390794 ZINC | 0.542 | 200.3 Da LogP 1.35 TPSA 7.8 | ✓ Ro5 | ✓ Clean |
c1cc[n+](CCC[n+]2ccccc2)cc1
|
| ZINC5975509 ZINC | 0.533 | 202.1 Da LogP -2.19 TPSA 127.5 | ✓ Ro5 | ✓ Clean |
O=P(O)(O)OC[C@H](O)[C@H](O)CO
|
| ZINC3870237 ZINC | 0.529 | 254.1 Da LogP -1.40 TPSA 144.5 | ✓ Ro5 | ✓ Clean |
O=C(O)C1=C[C@@H](OP(=O)(O)O)[C@@H](O)[C@H](O)C1
|
| ZINC1668279 ZINC | 0.520 | 228.3 Da LogP 2.13 TPSA 7.8 | ✓ Ro5 | ✓ Clean |
c1cc[n+](CCCCC[n+]2ccccc2)cc1
|
| ZINC1669613 ZINC | 0.520 | 298.5 Da LogP 4.08 TPSA 7.8 | ✓ Ro5 | ✓ Clean |
c1cc[n+](CCCCCCCCCC[n+]2ccccc2)cc1
|
| ZINC5583130 ZINC | 0.520 | 242.4 Da LogP 2.52 TPSA 7.8 | ✓ Ro5 | ✓ Clean |
c1cc[n+](CCCCCC[n+]2ccccc2)cc1
|
| ZINC1532601 ZINC | 0.500 | 200.1 Da LogP -1.98 TPSA 124.3 | ✓ Ro5 | ✓ Clean |
O=C[C@@H](O)[C@H](O)COP(=O)(O)O
|
| ZINC2516111 ZINC | 0.500 | 262.2 Da LogP -3.47 TPSA 167.9 | 1 viol. | ✓ Clean |
O=P(O)(O)OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)CO
|
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.