Target candidate with partial support; inspect missing evidence before prioritizing.
Automated synthesis of the evidence currently loaded. Review the underlying records before prioritizing this protein.
Main supporting evidence
Risks to review
Evidence coverage
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 (%)
- 36.875 Lower values reduce human off-target concern.
- Human E-value
- 1.45e-18
- Gut microbiome similarity
- 3.0% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.
Essentiality
- Essential (DEG)
- Y
- DEG identity (%)
- 86.08 Higher values support similarity to known essential genes.
- DEG E-value
- 0.0 Smaller values mean stronger essential-gene similarity.
Structure confidence
- ColabFold pLDDT
- 86.39 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.
MPGKLLRSVLIGLLVGGLLLALMPSLRQWQLAPTTQNDTADDSPASYNAAVRRAAPAVVNVYNRALNSTSHNQLTLGSGVIMDQRGYILTNKHVINDADQIIVALQDGRVFEALLVGSDSLTDLAVLKINATGGLPVIPINPKRTPHIGDVVLAIGNPYNLGQTITQGIISATGRIGLNPTGRQNFLQTDASINHGNSGGALVNSLGELMGINTLSFDKSNDGETPEGIGFAIPFQLATKIMDKLIRDGRVIRGYIGISGREIAPLHAQGGGIDQIQGIVVNDVAPDGPAAQAGIRANDVIISVNDKPAVSALETMDQVAEIRPGSEIPVVIMRDDKKITLHIAVQEYPATN
Functional annotations
Enzyme classification and Gene Ontology terms linked to this protein.
Subcellular localization
- Localization
- Unknown
Enzyme Commission (EC)
1Gene Ontology (GO)
6- GO:0004252 Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
- GO:0006508 The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
- GO:0005515 Binding to a protein.
- 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:0005886 The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
- GO:0006515 The chemical reactions and pathways resulting in the breakdown of misfolded or attenuated proteins.
Sequence domains and features
Domain and signature matches imported from InterPro and related databases.
Show feature table
| Start | End | DB | Term | Name |
|---|---|---|---|---|
| 28 | 138 | Gene3D | G3DSA:2.40.10.10 | - |
| 28 | 138 | InterPro | IPR043504 | Peptidase S1, PA clan, chymotrypsin-like fold |
| 86 | 98 | PRINTS | PR00834 | HtrA/DegQ protease family signature |
| 86 | 98 | InterPro | IPR001940 | Peptidase S1C |
| 107 | 127 | PRINTS | PR00834 | HtrA/DegQ protease family signature |
| 107 | 127 | InterPro | IPR001940 | Peptidase S1C |
| 148 | 172 | PRINTS | PR00834 | HtrA/DegQ protease family signature |
| 148 | 172 | InterPro | IPR001940 | Peptidase S1C |
| 294 | 306 | PRINTS | PR00834 | HtrA/DegQ protease family signature |
| 294 | 306 | InterPro | IPR001940 | Peptidase S1C |
| 205 | 222 | PRINTS | PR00834 | HtrA/DegQ protease family signature |
| 205 | 222 | InterPro | IPR001940 | Peptidase S1C |
| 183 | 200 | PRINTS | PR00834 | HtrA/DegQ protease family signature |
| 183 | 200 | InterPro | IPR001940 | Peptidase S1C |
| 41 | 347 | PANTHER | PTHR22939 | SERINE PROTEASE FAMILY S1C HTRA-RELATED |
| 139 | 253 | FunFam | G3DSA:2.40.10.10:FF:000001 | Periplasmic serine protease DegS |
| 1 | 31 | SignalP_GRAM_POSITIVE | SignalP-TM | SignalP-TM |
| 245 | 337 | ProSiteProfiles | PS50106 | PDZ domain profile. |
| 245 | 337 | InterPro | IPR001478 | PDZ domain |
| 237 | 343 | SUPERFAMILY | SSF50156 | PDZ domain-like |
| 237 | 343 | InterPro | IPR036034 | PDZ superfamily |
| 254 | 344 | Pfam | PF13180 | PDZ domain |
| 254 | 344 | InterPro | IPR001478 | PDZ domain |
| 1 | 27 | Phobius | SIGNAL_PEPTIDE | Signal peptide region |
| 28 | 352 | Phobius | NON_CYTOPLASMIC_DOMAIN | Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region. |
| 254 | 341 | CDD | cd00987 | PDZ_serine_protease |
| 23 | 27 | Phobius | SIGNAL_PEPTIDE_C_REGION | C-terminal region of a signal peptide. |
| 254 | 336 | SMART | SM00228 | pdz_new |
| 254 | 336 | InterPro | IPR001478 | PDZ domain |
| 4 | 349 | NCBIfam | TIGR02038 | outer membrane-stress sensor serine endopeptidase DegS |
| 4 | 349 | InterPro | IPR011783 | Peptidase S1C, DegS |
| 5 | 24 | TMHMM | TMhelix | Region of a membrane-bound protein predicted to be embedded in the membrane. |
| 44 | 251 | SUPERFAMILY | SSF50494 | Trypsin-like serine proteases |
| 44 | 251 | InterPro | IPR009003 | Peptidase S1, PA clan |
| 255 | 351 | Gene3D | G3DSA:2.30.42.10 | - |
| 255 | 351 | InterPro | IPR036034 | PDZ superfamily |
| 28 | 138 | FunFam | G3DSA:2.40.10.10:FF:000009 | Serine endoprotease DegS, periplasmic |
| 185 | 347 | Pfam | PF02163 | Peptidase family M50 |
| 185 | 347 | InterPro | IPR008915 | Peptidase M50 |
| 9 | 22 | Phobius | SIGNAL_PEPTIDE_H_REGION | Hydrophobic region of a signal peptide. |
| 1 | 8 | Phobius | SIGNAL_PEPTIDE_N_REGION | N-terminal region of a signal peptide. |
| 139 | 254 | Gene3D | G3DSA:2.40.10.10 | - |
| 139 | 254 | InterPro | IPR043504 | Peptidase S1, PA clan, chymotrypsin-like fold |
| 77 | 212 | Pfam | PF13365 | Trypsin-like peptidase domain |
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
Residue sets
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_A0A0H3GY66
|
AlphaFold DB | — | — | full sequence | — | Viewing |
|
ColabFold
VK055_3843
|
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 |
|---|---|---|---|---|---|---|
| CXS RCSB PDB | A0A5P8YL96 | 221.3 Da LogP 1.19 TPSA 66.4 | ✓ Ro5 | ✓ Clean |
C1CCC(CC1)NCCCS(=O)(=O)O
|
|
| DFP RCSB PDB | P0C0V0 | 166.2 Da LogP 2.23 TPSA 35.5 | ✓ Ro5 | ✓ Clean |
CC(C)OP(=O)OC(C)C
|
|
| PMS RCSB PDB | O06291 | 172.2 Da LogP 1.07 TPSA 54.4 | ✓ Ro5 | ✓ Clean |
c1ccc(cc1)CS(=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 |
|---|---|---|---|---|---|
| ZINC2004372 ZINC | 1.000 | 221.3 Da LogP 1.19 TPSA 66.4 | ✓ Ro5 | ✓ Clean |
O=S(=O)(O)CCCNC1CCCCC1
|
| ZINC38364153 ZINC | 0.926 | 235.3 Da LogP 1.58 TPSA 66.4 | ✓ Ro5 | ✓ Clean |
O=S(=O)(O)CCCCNC1CCCCC1
|
| ZINC1710230 ZINC | 0.786 | 207.3 Da LogP 0.80 TPSA 66.4 | ✓ Ro5 | ✓ Clean |
O=S(=O)(O)CCNC1CCCCC1
|
| ZINC1764974 ZINC | 0.750 | 266.3 Da LogP 0.46 TPSA 108.7 | ✓ Ro5 | ✓ Clean |
O=S(=O)(O)Cc1ccc(CS(=O)(=O)O)cc1
|
| ZINC389634 ZINC | 0.714 | 246.3 Da LogP 2.80 TPSA 34.1 | ✓ Ro5 | ✓ Clean |
O=S(=O)(Cc1ccccc1)Cc1ccccc1
|
| ZINC5188799 ZINC | 0.630 | 280.5 Da LogP 4.39 TPSA 24.1 | ✓ Ro5 | ✓ Clean |
C(CCCNC1CCCCC1)CCNC1CCCCC1
|
| ZINC34080186 ZINC | 0.609 | 266.3 Da LogP 0.46 TPSA 108.7 | ✓ Ro5 | ✓ Clean |
O=S(=O)(O)Cc1ccccc1CS(=O)(=O)O
|
| ZINC32210235 ZINC | 0.600 | 251.1 Da LogP 1.84 TPSA 54.4 | ✓ Ro5 | ✓ Clean |
O=S(=O)(O)Cc1ccc(Br)cc1
|
| ZINC1679108 ZINC | 0.583 | 324.4 Da LogP 2.17 TPSA 68.3 | ✓ Ro5 | ✓ Clean |
O=S(=O)(Cc1ccccc1)CS(=O)(=O)Cc1ccccc1
|
| ZINC163130 ZINC | 0.560 | 232.3 Da LogP 2.66 TPSA 34.1 | ✓ Ro5 | ✓ Clean |
O=S(=O)(Cc1ccccc1)c1ccccc1
|
| ZINC196676626 ZINC | 0.560 | 340.4 Da LogP 1.14 TPSA 92.3 | ✓ Ro5 | ✓ Clean |
O=S(=O)(Cc1ccccc1)NNS(=O)(=O)Cc1ccccc1
|
| ZINC399776 ZINC | 0.560 | 336.4 Da LogP 2.69 TPSA 68.3 | ✓ Ro5 | ✓ Clean |
O=S(=O)(/C=C/S(=O)(=O)Cc1ccccc1)Cc1ccccc1
|
| ZINC145170179 ZINC | 0.556 | 250.3 Da LogP 0.48 TPSA 88.5 | ✓ Ro5 | ✓ Clean |
CS(=O)(=O)c1ccc(CS(=O)(=O)O)cc1
|
| ZINC1713408 ZINC | 0.556 | 214.2 Da LogP 0.69 TPSA 71.4 | ✓ Ro5 | ✓ Clean |
O=C(O)CS(=O)(=O)Cc1ccccc1
|
| ZINC255190110 ZINC | 0.556 | 386.5 Da LogP 3.63 TPSA 68.3 | ✓ Ro5 | ✓ Clean |
O=S(=O)(Cc1ccccc1)c1cccc(S(=O)(=O)Cc2ccccc2)c1
|
| ZINC26478554 ZINC | 0.556 | 200.3 Da LogP 0.59 TPSA 54.4 | ✓ Ro5 | ✓ Clean |
O=S(=O)(CCO)Cc1ccccc1
|
| ZINC35058157 ZINC | 0.552 | 261.3 Da LogP 2.38 TPSA 60.2 | ✓ Ro5 | ✓ Clean |
Nc1cccc(CS(=O)(=O)Cc2ccccc2)c1
|
| ZINC14093286 ZINC | 0.538 | 368.5 Da LogP 1.23 TPSA 92.3 | ✓ Ro5 | ✓ Clean |
O=S(=O)(Cc1ccccc1)NCCNS(=O)(=O)Cc1ccccc1
|
| ZINC1163467 ZINC | 0.536 | 436.6 Da LogP 4.79 TPSA 68.3 | ✓ Ro5 | ✓ Clean |
O=S(=O)(Cc1ccccc1)c1cccc2c(S(=O)(=O)Cc3ccccc3)c…
|
| ZINC2509149 ZINC | 0.531 | 211.4 Da LogP 4.27 TPSA 12.0 | ✓ Ro5 | ✓ Clean |
CCCCCCCCNC1CCCCC1
|
| ZINC32929750 ZINC | 0.531 | 289.4 Da LogP 1.90 TPSA 77.2 | ✓ Ro5 | ✓ Clean |
NC(=O)c1cccc(CS(=O)(=O)Cc2ccccc2)c1
|
| ZINC130127586 ZINC | 0.529 | 260.4 Da LogP 1.38 TPSA 58.2 | ✓ Ro5 | ✓ Clean |
O=S(=O)(NCCNC1CCCCCC1)C1CC1
|
| ZINC143515753 ZINC | 0.519 | 200.3 Da LogP 1.64 TPSA 54.4 | ✓ Ro5 | ✓ Clean |
CCc1ccccc1CS(=O)(=O)O
|
| ZINC19367005 ZINC | 0.519 | 224.4 Da LogP 2.83 TPSA 24.1 | ✓ Ro5 | ✓ Clean |
C1CCC(NCCNC2CCCCC2)CC1
|
| ZINC29840 ZINC | 0.519 | 261.3 Da LogP 2.31 TPSA 46.2 | ✓ Ro5 | ✓ Clean |
O=S(=O)(Cc1ccccc1)NCc1ccccc1
|
| ZINC45069273 ZINC | 0.519 | 273.6 Da LogP 2.93 TPSA 34.1 | ✓ Ro5 | ✓ Clean |
O=S(=O)(Cc1ccccc1)C(Cl)(Cl)Cl
|
| ZINC12805654 ZINC | 0.517 | 444.6 Da LogP 2.93 TPSA 92.3 | ✓ Ro5 | ✓ Clean |
O=S(=O)(Cc1ccccc1)NCc1cccc(CNS(=O)(=O)Cc2ccccc2…
|
| ZINC13808031 ZINC | 0.517 | 213.3 Da LogP -0.21 TPSA 98.5 | ✓ Ro5 | ✓ Clean |
NC(N)=NS(=O)(=O)Cc1ccccc1
|
| ZINC1561883 ZINC | 0.517 | 229.3 Da LogP 0.19 TPSA 83.5 | ✓ Ro5 | ✓ Clean |
O=C(O)CNS(=O)(=O)Cc1ccccc1
|
| ZINC1641128 ZINC | 0.517 | 242.3 Da LogP 2.68 TPSA 54.4 | ✓ Ro5 | ✓ Clean |
O=S(=O)(O)CCCCCCc1ccccc1
|
| ZINC17021092 ZINC | 0.517 | 228.3 Da LogP 1.07 TPSA 71.4 | ✓ Ro5 | ✓ Clean |
C[C@H](C(=O)O)S(=O)(=O)Cc1ccccc1
|
| ZINC1704442 ZINC | 0.517 | 228.3 Da LogP 1.07 TPSA 71.4 | ✓ Ro5 | ✓ Clean |
C[C@@H](C(=O)O)S(=O)(=O)Cc1ccccc1
|
| ZINC1764786 ZINC | 0.517 | 217.2 Da LogP 0.98 TPSA 97.5 | ✓ Ro5 | ✓ Clean |
O=[N+]([O-])c1ccc(CS(=O)(=O)O)cc1
|
| ZINC3219150 ZINC | 0.517 | 263.3 Da LogP 2.41 TPSA 57.6 | ✓ Ro5 | ✓ Clean |
O=S(=O)(Cc1ccccc1)N(O)c1ccccc1
|
| ZINC4512996 ZINC | 0.517 | 228.3 Da LogP 1.08 TPSA 71.4 | ✓ Ro5 | ✓ Clean |
O=C(O)CCS(=O)(=O)Cc1ccccc1
|
| ZINC65593788 ZINC | 0.517 | 274.4 Da LogP 3.42 TPSA 34.1 | ✓ Ro5 | ✓ Clean |
Cc1cc(C)cc(CS(=O)(=O)Cc2ccccc2)c1
|
| ZINC78978926 ZINC | 0.516 | 266.7 Da LogP 3.31 TPSA 34.1 | ✓ Ro5 | ✓ Clean |
O=S(=O)(Cc1ccccc1)c1cccc(Cl)c1
|
| ZINC96191894 ZINC | 0.516 | 217.2 Da LogP 0.98 TPSA 97.5 | ✓ Ro5 | ✓ Clean |
O=[N+]([O-])c1cccc(CS(=O)(=O)O)c1
|
| ZINC1641137 ZINC | 0.500 | 222.3 Da LogP 2.23 TPSA 54.4 | ✓ Ro5 | ✓ Clean |
O=S(=O)(O)Cc1cccc2ccccc12
|
| ZINC1672446 ZINC | 0.500 | 228.3 Da LogP 1.49 TPSA 75.3 | ✓ Ro5 | ✓ Clean |
N[C@@H](CCCCNC1CCCCC1)C(=O)O
|
| ZINC1926248 ZINC | 0.500 | 416.5 Da LogP 3.57 TPSA 92.3 | ✓ Ro5 | Alert |
O=S(=O)(Cc1ccccc1)Nc1ccc(NS(=O)(=O)Cc2ccccc2)cc1
|
| ZINC2168583 ZINC | 0.500 | 237.3 Da LogP 0.16 TPSA 86.6 | ✓ Ro5 | ✓ Clean |
O=S(=O)(O)C[C@@H](O)CNC1CCCCC1
|
| ZINC2168584 ZINC | 0.500 | 237.3 Da LogP 0.16 TPSA 86.6 | ✓ Ro5 | ✓ Clean |
O=S(=O)(O)C[C@H](O)CNC1CCCCC1
|
| ZINC236994621 ZINC | 0.500 | 290.4 Da LogP 0.85 TPSA 75.3 | ✓ Ro5 | ✓ Clean |
CCS(=O)(=O)CC(=O)NCCNC1CCCCCC1
|
| ZINC29852 ZINC | 0.500 | 247.3 Da LogP 2.63 TPSA 46.2 | ✓ Ro5 | ✓ Clean |
O=S(=O)(Cc1ccccc1)Nc1ccccc1
|
| ZINC399887 ZINC | 0.500 | 274.3 Da LogP 2.48 TPSA 51.2 | ✓ Ro5 | ✓ Clean |
O=C(CS(=O)(=O)Cc1ccccc1)c1ccccc1
|
| ZINC44655186 ZINC | 0.500 | 213.4 Da LogP 3.12 TPSA 21.3 | ✓ Ro5 | ✓ Clean |
COCCCCNC1CCCCCCC1
|
| ZINC5840523 ZINC | 0.500 | 228.3 Da LogP 1.49 TPSA 75.3 | ✓ Ro5 | ✓ Clean |
N[C@H](CCCCNC1CCCCC1)C(=O)O
|
| ZINC65593700 ZINC | 0.500 | 314.3 Da LogP 3.82 TPSA 34.1 | ✓ Ro5 | ✓ Clean |
O=S(=O)(Cc1ccccc1)Cc1cccc(C(F)(F)F)c1
|
| ZINC728426 ZINC | 0.500 | 351.5 Da LogP 4.22 TPSA 37.4 | ✓ Ro5 | ✓ Clean |
O=S(=O)(Cc1ccccc1)N(Cc1ccccc1)Cc1ccccc1
|
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.