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
- 1.7% 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
- 90.2 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.
MRKKLLAMLAVSAFALGSASAFADLGEDMDTLAENLQVVQKTSDAGELKAALNKMRTAAVDAQKETPPKLEGKAADSAEMKDYRHGLDILIGQIDGALKLANEGKVKEAQAAAEEFKTTRNTYHKKYR
Functional annotations
Enzyme classification and Gene Ontology terms linked to this protein.
Subcellular localization
- Localization
- Periplasmic
Gene Ontology (GO)
5- GO:0022900 A process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors.
- GO:0042597 The region between the inner (cytoplasmic) and outer membrane (Gram-negative Bacteria) or cytoplasmic membrane and cell wall (Fungi and Gram-positive Bacteria).
- GO:0005506 Binding to an iron (Fe) ion.
- GO:0009055 A molecular function representing the directed movement of electrons from one molecular entity to another, typically mediated by electron carriers or acceptors, resulting in the transfer of energy and/or the reduction-oxidation (redox) transformation of chemical species. This activity is fundamental to various biological processes, including cellular respiration and photosynthesis, as well as numerous enzymatic reactions involved in metabolic pathways.
- GO:0020037 Binding to a heme, a compound composed of iron complexed in a porphyrin (tetrapyrrole) ring.
Sequence domains and features
Domain and signature matches imported from InterPro and related databases.
Show feature table
| Start | End | DB | Term | Name |
|---|---|---|---|---|
| 23 | 128 | SUPERFAMILY | SSF47175 | Cytochromes |
| 23 | 128 | InterPro | IPR010980 | Cytochrome c/b562 |
| 5 | 16 | Phobius | SIGNAL_PEPTIDE_H_REGION | Hydrophobic region of a signal peptide. |
| 1 | 23 | Phobius | SIGNAL_PEPTIDE | Signal peptide region |
| 45 | 65 | Coils | Coil | Coil |
| 24 | 128 | Pfam | PF07361 | Cytochrome b562 |
| 24 | 128 | InterPro | IPR009155 | Cytochrome b562 |
| 24 | 128 | Phobius | NON_CYTOPLASMIC_DOMAIN | Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region. |
| 18 | 128 | Gene3D | G3DSA:1.20.120.10 | Cytochrome c/b562 |
| 1 | 23 | SignalP_GRAM_POSITIVE | SignalP-TM | SignalP-TM |
| 1 | 23 | SignalP_GRAM_NEGATIVE | SignalP-noTM | SignalP-noTM |
| 1 | 128 | PIRSF | PIRSF000029 | Cytochrome_b562 |
| 1 | 128 | InterPro | IPR009155 | Cytochrome b562 |
| 17 | 23 | Phobius | SIGNAL_PEPTIDE_C_REGION | C-terminal region of a signal peptide. |
| 1 | 21 | SignalP_EUK | SignalP-noTM | SignalP-noTM |
| 1 | 4 | Phobius | SIGNAL_PEPTIDE_N_REGION | N-terminal region of a signal peptide. |
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
Residue sets
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_A0A0H3GQS6
|
AlphaFold DB | — | — | full sequence | — | Viewing |
|
ColabFold
KP13_01264
|
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 |
|---|---|---|---|---|---|---|
| CLR RCSB PDB | P0ABE7 | 386.7 Da LogP 7.39 TPSA 20.2 | 1 viol. | ✓ Clean |
CC(C)CCC[C@@H](C)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3…
|
|
| FM9 RCSB PDB | P0ABE7 | 371.4 Da LogP 3.84 TPSA 71.0 | ✓ Ro5 | ✓ Clean |
CC(C)Nc1cc(ncn1)c2csc(n2)N(C)C(=O)c3ccc(cc3)F
|
|
| HAE RCSB PDB | P0ABE7 | 75.1 Da LogP -0.49 TPSA 49.3 | ✓ Ro5 | ✓ Clean |
CC(=O)NO
|
|
| HQI RCSB PDB | P0ABE7 | 202.2 Da LogP 1.90 TPSA 62.2 | ✓ Ro5 | ✓ Clean |
CC(=O)Nc1ccc(c2c1cccn2)O
|
|
| KNW RCSB PDB | P0ABE7 | 585.0 Da LogP 5.65 TPSA 125.4 | 2 viol. | ✓ Clean |
c1cc(c2c(c1)N(C[C@H](O2)C(=O)O)CCCC(=O)O)NC(=O)…
|
|
| KO5 RCSB PDB | P0ABE7 | 564.6 Da LogP 5.30 TPSA 125.4 | 2 viol. | ✓ Clean |
Cc1ccc(cc1CCCCOc2ccc(cc2)C(=O)Nc3cccc4c3O[C@@H]…
|
|
| OLA RCSB PDB | P0ABE7 | 282.5 Da LogP 6.11 TPSA 37.3 | 1 viol. | ✓ Clean |
CCCCCCCC\C=C/CCCCCCCC(=O)O
|
|
| OLB RCSB PDB | P0ABE7 | 356.5 Da LogP 4.92 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCCCC/C=C\CCCCCCCC(=O)OC[C@H](CO)O
|
|
| OLC RCSB PDB | P0ABE7 | 356.5 Da LogP 4.92 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](CO)O
|
|
| PXX RCSB PDB | P0ABE7 | 237.3 Da LogP 2.74 TPSA 54.9 | ✓ Ro5 | ✓ Clean |
CC(=O)Nc1cc2cccnc2c3c1cccn3
|
|
| TLA RCSB PDB | P0ABE7 | 150.1 Da LogP -2.12 TPSA 115.1 | ✓ Ro5 | ✓ Clean |
[C@@H]([C@H](C(=O)O)O)(C(=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 |
|---|---|---|---|---|---|
| ZINC12501520 ZINC | 1.000 | 458.5 Da LogP -0.88 TPSA 123.5 | 1 viol. | ✓ Clean |
OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO
|
| ZINC1501016272 ZINC | 1.000 | 328.5 Da LogP 4.14 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCCC/C=C\CCCCCCC(=O)OC[C@H](O)CO
|
| ZINC1501016273 ZINC | 1.000 | 328.5 Da LogP 4.14 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCCC/C=C\CCCCCCC(=O)OC[C@@H](O)CO
|
| ZINC1501016315 ZINC | 1.000 | 314.5 Da LogP 3.75 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCC/C=C\CCCCCCC(=O)OC[C@@H](O)CO
|
| ZINC1501016316 ZINC | 1.000 | 314.5 Da LogP 3.75 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCC/C=C\CCCCCCC(=O)OC[C@H](O)CO
|
| ZINC2038077522 ZINC | 1.000 | 356.5 Da LogP 4.92 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCCCCC=CCCCCCCCC(=O)OC[C@@H](O)CO
|
| ZINC2038077523 ZINC | 1.000 | 356.5 Da LogP 4.92 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCCCCC=CCCCCCCCC(=O)OC[C@H](O)CO
|
| ZINC221534416 ZINC | 1.000 | 328.5 Da LogP 4.14 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCCCC/C=C\CCCCCC(=O)OC[C@@H](O)CO
|
| ZINC31776951 ZINC | 1.000 | 202.2 Da LogP 1.90 TPSA 62.2 | ✓ Ro5 | ✓ Clean |
CC(=O)Nc1ccc(O)c2ncccc12
|
| ZINC32840893 ZINC | 1.000 | 328.5 Da LogP 4.14 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCC/C=C\CCCCCCCC(=O)OC[C@@H](O)CO
|
| ZINC32840894 ZINC | 1.000 | 328.5 Da LogP 4.14 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCC/C=C/CCCCCCCC(=O)OC[C@@H](O)CO
|
| ZINC32840895 ZINC | 1.000 | 328.5 Da LogP 4.14 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCC/C=C\CCCCCCCC(=O)OC[C@H](O)CO
|
| ZINC32840896 ZINC | 1.000 | 328.5 Da LogP 4.14 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCC/C=C/CCCCCCCC(=O)OC[C@H](O)CO
|
| ZINC32840901 ZINC | 1.000 | 356.5 Da LogP 4.92 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCCCC/C=C\CCCCCCCC(=O)OC[C@@H](O)CO
|
| ZINC32840902 ZINC | 1.000 | 356.5 Da LogP 4.92 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCCCC/C=C/CCCCCCCC(=O)OC[C@@H](O)CO
|
| ZINC32840903 ZINC | 1.000 | 356.5 Da LogP 4.92 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCCCC/C=C\CCCCCCCC(=O)OC[C@H](O)CO
|
| ZINC32840904 ZINC | 1.000 | 356.5 Da LogP 4.92 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCCCC/C=C/CCCCCCCC(=O)OC[C@H](O)CO
|
| ZINC3874716 ZINC | 1.000 | 414.5 Da LogP -0.90 TPSA 114.3 | ✓ Ro5 | ✓ Clean |
OCCOCCOCCOCCOCCOCCOCCOCCOCCO
|
| ZINC4283769 ZINC | 1.000 | 238.3 Da LogP -0.96 TPSA 77.4 | ✓ Ro5 | ✓ Clean |
OCCOCCOCCOCCOCCO
|
| ZINC4521548 ZINC | 1.000 | 282.3 Da LogP -0.95 TPSA 86.6 | ✓ Ro5 | ✓ Clean |
OCCOCCOCCOCCOCCOCCO
|
| ZINC45245958 ZINC | 1.000 | 371.4 Da LogP 3.84 TPSA 71.0 | ✓ Ro5 | ✓ Clean |
CC(C)Nc1cc(-c2csc(N(C)C(=O)c3ccc(F)cc3)n2)ncn1
|
| ZINC5178829 ZINC | 1.000 | 326.4 Da LogP -0.93 TPSA 95.8 | ✓ Ro5 | ✓ Clean |
OCCOCCOCCOCCOCCOCCOCCO
|
| ZINC5178830 ZINC | 1.000 | 370.4 Da LogP -0.91 TPSA 105.1 | ✓ Ro5 | ✓ Clean |
OCCOCCOCCOCCOCCOCCOCCOCCO
|
| ZINC64633397 ZINC | 1.000 | 226.4 Da LogP 4.55 TPSA 37.3 | ✓ Ro5 | ✓ Clean |
CCCCCC/C=C\CCCCCC(=O)O
|
| ZINC725433050 ZINC | 1.000 | 342.5 Da LogP 4.53 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCCCC/C=C\CCCCCCC(=O)OC[C@@H](O)CO
|
| ZINC725433052 ZINC | 1.000 | 342.5 Da LogP 4.53 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCCCC/C=C\CCCCCCC(=O)OC[C@H](O)CO
|
| ZINC98208566 ZINC | 1.000 | 328.5 Da LogP 4.14 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCCCC/C=C\CCCCCC(=O)OC[C@H](O)CO
|
| ZINC32840885 ZINC | 0.943 | 300.4 Da LogP 3.36 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCC/C=C\CCCCCCCC(=O)OC[C@@H](O)CO
|
| ZINC2053467566 ZINC | 0.919 | 354.5 Da LogP 4.70 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCC=CCC=CCCCCCCCC(=O)OC[C@@H](O)CO
|
| ZINC2053467567 ZINC | 0.919 | 354.5 Da LogP 4.70 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCCC=CCC=CCCCCCCCC(=O)OC[C@H](O)CO
|
| ZINC29045599 ZINC | 0.919 | 354.5 Da LogP 4.70 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCC/C=C/C/C=C\CCCCCCCC(=O)OC[C@H](O)CO
|
| ZINC4557100 ZINC | 0.919 | 354.5 Da LogP 4.70 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCC/C=C\C/C=C\CCCCCCCC(=O)OC[C@H](O)CO
|
| ZINC4557101 ZINC | 0.919 | 354.5 Da LogP 4.70 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCC/C=C\C/C=C\CCCCCCCC(=O)OC[C@@H](O)CO
|
| ZINC5819989 ZINC | 0.919 | 354.5 Da LogP 4.70 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCC/C=C/C/C=C/CCCCCCCC(=O)OC[C@H](O)CO
|
| ZINC5819990 ZINC | 0.919 | 354.5 Da LogP 4.70 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCC/C=C/C/C=C/CCCCCCCC(=O)OC[C@@H](O)CO
|
| ZINC85425978 ZINC | 0.919 | 354.5 Da LogP 4.70 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCC/C=C\C/C=C/CCCCCCCC(=O)OC[C@H](O)CO
|
| ZINC1531062 ZINC | 0.917 | 226.4 Da LogP 4.55 TPSA 37.3 | ✓ Ro5 | ✓ Clean |
CCCC/C=C/CCCCCCCC(=O)O
|
| ZINC2504617 ZINC | 0.917 | 240.4 Da LogP 4.94 TPSA 37.3 | ✓ Ro5 | ✓ Clean |
CCCC/C=C/CCCCCCCCC(=O)O
|
| ZINC32786138 ZINC | 0.917 | 226.4 Da LogP 4.55 TPSA 37.3 | ✓ Ro5 | ✓ Clean |
CCCCCCCC/C=C/CCCC(=O)O
|
| ZINC4529321 ZINC | 0.917 | 226.4 Da LogP 4.55 TPSA 37.3 | ✓ Ro5 | ✓ Clean |
CCCC/C=C\CCCCCCCC(=O)O
|
| ZINC5260769 ZINC | 0.917 | 240.4 Da LogP 4.94 TPSA 37.3 | ✓ Ro5 | ✓ Clean |
CCCC/C=C\CCCCCCCCC(=O)O
|
| ZINC29045446 ZINC | 0.892 | 352.5 Da LogP 4.47 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CCCCC/C=C\C/C=C\C/C=C\CCCCC(=O)OC[C@@H](O)CO
|
| ZINC13532428 ZINC | 0.829 | 372.5 Da LogP 3.89 TPSA 87.0 | ✓ Ro5 | ✓ Clean |
CCCCCC[C@@H](O)C/C=C\CCCCCCCC(=O)OC[C@@H](O)CO
|
| ZINC13532431 ZINC | 0.829 | 372.5 Da LogP 3.89 TPSA 87.0 | ✓ Ro5 | ✓ Clean |
CCCCCC[C@@H](O)C/C=C/CCCCCCCC(=O)OC[C@@H](O)CO
|
| ZINC13532435 ZINC | 0.829 | 372.5 Da LogP 3.89 TPSA 87.0 | ✓ Ro5 | ✓ Clean |
CCCCCC[C@H](O)C/C=C\CCCCCCCC(=O)OC[C@@H](O)CO
|
| ZINC13546141 ZINC | 0.829 | 372.5 Da LogP 3.89 TPSA 87.0 | ✓ Ro5 | ✓ Clean |
CCCCCC[C@@H](O)C/C=C/CCCCCCCC(=O)OC[C@H](O)CO
|
| ZINC2296552808 ZINC | 0.829 | 372.5 Da LogP 3.89 TPSA 87.0 | ✓ Ro5 | ✓ Clean |
CCCCCC[C@H](O)CC=CCCCCCCCC(=O)OC[C@H](O)CO
|
| ZINC33832849 ZINC | 0.829 | 372.5 Da LogP 3.89 TPSA 87.0 | ✓ Ro5 | ✓ Clean |
CCCCCC[C@H](O)C/C=C\CCCCCCCC(=O)OC[C@H](O)CO
|
| ZINC35052109 ZINC | 0.829 | 372.5 Da LogP 3.89 TPSA 87.0 | ✓ Ro5 | ✓ Clean |
CCCCCC[C@H](O)C/C=C/CCCCCCCC(=O)OC[C@H](O)CO
|
| ZINC4411074 ZINC | 0.829 | 372.5 Da LogP 3.89 TPSA 87.0 | ✓ Ro5 | ✓ Clean |
CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[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.