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
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
- No hit
- Gut microbiome similarity
- 2.3% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.
Essentiality
- Essential (DEG)
- Y
- DEG identity (%)
- 90.888 Higher values support similarity to known essential genes.
- DEG E-value
- 0.0 Smaller values mean stronger essential-gene similarity.
Structure confidence
- ColabFold pLDDT
- 89.32 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.
MKNWKTLLLGIAMIANTSFAAPQVVDKVAAVVNNGVVLESDVDGLMQSVKLNAGQAGQQLPDDATLRHQILERLIMDQIVLQMGQKMGVKISDDQLDQAIANIAKQNNMTLDQMRSRLAYEGINYNTYRNQIRKEMLISEVRNNEVRRRITVLPQEVEALAKQIGDQNDASTELNLSHILIPLPENPTSDEVAAAQEQANSIVEQARNGANFGKLAITYSADQQALKGGQMGWGRIQELPGIFAQALSTAKKGDIVGPIRSGVGFHILKVNDLRGGTQNISVTEVHARHILLKPSPIMNDAQAQAKLEQIAAEIKSGKITFAQAAKTYSEDPGSANQGGDLGWATPDIFDPAFRDALMRLNKGQTSGPVHSSFGWHLIELLDSRQVDRTDAAQKDRAYRMLMNRKFSEEAATWMQEQRASAYVKILSN
Functional annotations
Enzyme classification and Gene Ontology terms linked to this protein.
Subcellular localization
- Localization
- Periplasmic
Enzyme Commission (EC)
1Gene Ontology (GO)
7- GO:0003755 Catalysis of the reaction: peptidyl-proline (omega=180) = peptidyl-proline (omega=0).
- GO:0050821 Any process involved in maintaining the structure and integrity of a protein and preventing it from degradation or aggregation.
- GO:0006457 The process of assisting in the covalent and noncovalent assembly of single chain polypeptides or multisubunit complexes into the correct tertiary structure.
- GO:0030288 The region between the inner (cytoplasmic or plasma) membrane and outer membrane of organisms with two membranes such as Gram negative bacteria. These periplasmic spaces are relatively thick and contain a thin peptidoglycan layer (PGL), also referred to as a thin cell wall.
- GO:0051082 Binding to an unfolded protein.
- GO:0042277 Binding to a peptide, an organic compound comprising two or more amino acids linked by peptide bonds.
- GO:0043165 The assembly of an outer membrane of the type formed in Gram-negative bacteria. This membrane is enriched in polysaccharide and protein, and the outer leaflet of the membrane contains specific lipopolysaccharide structures.
Sequence domains and features
Domain and signature matches imported from InterPro and related databases.
Show feature table
| Start | End | DB | Term | Name |
|---|---|---|---|---|
| 21 | 428 | Phobius | NON_CYTOPLASMIC_DOMAIN | Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region. |
| 25 | 142 | Pfam | PF09312 | SurA N-terminal domain |
| 25 | 142 | InterPro | IPR015391 | SurA N-terminal |
| 283 | 384 | SUPERFAMILY | SSF54534 | FKBP-like |
| 382 | 428 | Gene3D | G3DSA:1.10.4030.10 | - |
| 21 | 148 | FunFam | G3DSA:1.10.4030.10:FF:000002 | Chaperone SurA |
| 1 | 20 | SignalP_GRAM_NEGATIVE | SignalP-noTM | SignalP-noTM |
| 280 | 381 | FunFam | G3DSA:3.10.50.40:FF:000007 | Chaperone SurA |
| 280 | 381 | Gene3D | G3DSA:3.10.50.40 | - |
| 280 | 381 | InterPro | IPR046357 | Peptidyl-prolyl cis-trans isomerase domain superfamily |
| 25 | 201 | SUPERFAMILY | SSF109998 | Triger factor/SurA peptide-binding domain-like |
| 25 | 201 | InterPro | IPR027304 | Trigger factor/SurA domain superfamily |
| 178 | 272 | Pfam | PF00639 | PPIC-type PPIASE domain |
| 178 | 272 | InterPro | IPR000297 | Peptidyl-prolyl cis-trans isomerase, PpiC-type |
| 173 | 275 | SUPERFAMILY | SSF54534 | FKBP-like |
| 282 | 382 | ProSiteProfiles | PS50198 | PpiC-type peptidyl-prolyl cis-trans isomerase family profile. |
| 282 | 382 | InterPro | IPR000297 | Peptidyl-prolyl cis-trans isomerase, PpiC-type |
| 1 | 20 | Phobius | SIGNAL_PEPTIDE | Signal peptide region |
| 7 | 15 | Phobius | SIGNAL_PEPTIDE_H_REGION | Hydrophobic region of a signal peptide. |
| 16 | 20 | Phobius | SIGNAL_PEPTIDE_C_REGION | C-terminal region of a signal peptide. |
| 321 | 342 | ProSitePatterns | PS01096 | PpiC-type peptidyl-prolyl cis-trans isomerase signature. |
| 321 | 342 | InterPro | IPR023058 | Peptidyl-prolyl cis-trans isomerase, PpiC-type, conserved site |
| 21 | 148 | Gene3D | G3DSA:1.10.4030.10 | - |
| 1 | 277 | PANTHER | PTHR47637 | CHAPERONE SURA |
| 171 | 272 | ProSiteProfiles | PS50198 | PpiC-type peptidyl-prolyl cis-trans isomerase family profile. |
| 171 | 272 | InterPro | IPR000297 | Peptidyl-prolyl cis-trans isomerase, PpiC-type |
| 1 | 20 | SignalP_GRAM_POSITIVE | SignalP-TM | SignalP-TM |
| 283 | 383 | Pfam | PF13616 | PPIC-type PPIASE domain |
| 163 | 279 | Gene3D | G3DSA:3.10.50.40 | - |
| 163 | 279 | InterPro | IPR046357 | Peptidyl-prolyl cis-trans isomerase domain superfamily |
| 1 | 6 | Phobius | SIGNAL_PEPTIDE_N_REGION | N-terminal region of a signal peptide. |
| 9 | 428 | Hamap | MF_01183 | Chaperone SurA [surA]. |
| 9 | 428 | InterPro | IPR023034 | Peptidyl-prolyl isomerase SurA |
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_A0A0H3GI34
|
AlphaFold DB | — | — | full sequence | — | Viewing |
|
ColabFold
VK055_2524
|
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 |
|---|---|---|---|---|---|---|
| 2NV RCSB PDB | Q81CB1 | 279.4 Da LogP 0.44 TPSA 72.2 | ✓ Ro5 | ✓ Clean |
CCOCCOCCOCCOCCOC[C@@H](C)N
|
|
| D1D RCSB PDB | Q9Y237 | 152.2 Da LogP 0.10 TPSA 40.5 | ✓ Ro5 | ✓ Clean |
C1[C@H]([C@@H](CSS1)O)O
|
|
| ICB RCSB PDB | P56112 | 161.2 Da LogP 1.87 TPSA 53.1 | ✓ Ro5 | ✓ Clean |
c1ccc2c(c1)cc([nH]2)C(=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 |
|---|---|---|---|---|---|
| ZINC142395 ZINC | 0.700 | 221.3 Da LogP 3.40 TPSA 32.9 | ✓ Ro5 | ✓ Clean |
O=C(c1ccccc1)c1cc2ccccc2[nH]1
|
| ZINC141246167 ZINC | 0.667 | 319.3 Da LogP 3.60 TPSA 98.0 | ✓ Ro5 | ✓ Clean |
O=C(O)c1cc2cc(NC(=O)c3cc4ccccc4[nH]3)ccc2[nH]1
|
| ZINC2384034 ZINC | 0.667 | 205.2 Da LogP 1.56 TPSA 90.4 | ✓ Ro5 | ✓ Clean |
O=C(O)c1ccc2cc(C(=O)O)[nH]c2c1
|
| ZINC11866572 ZINC | 0.656 | 372.4 Da LogP 3.25 TPSA 72.2 | ✓ Ro5 | ✓ Clean |
O=C(c1cc2ccccc2[nH]1)N1CCN(C(=O)c2cc3ccccc3[nH]…
|
| ZINC32003100 ZINC | 0.656 | 237.3 Da LogP 3.53 TPSA 53.1 | ✓ Ro5 | ✓ Clean |
O=C(O)c1cc2cc(-c3ccccc3)ccc2[nH]1
|
| ZINC3748671 ZINC | 0.656 | 237.3 Da LogP 3.53 TPSA 53.1 | ✓ Ro5 | ✓ Clean |
O=C(O)c1cc2ccc(-c3ccccc3)cc2[nH]1
|
| ZINC74002845 ZINC | 0.656 | 226.2 Da LogP 2.86 TPSA 68.9 | ✓ Ro5 | ✓ Clean |
O=C(O)c1ccc(-c2cc3ccccc3[nH]2)[nH]1
|
| ZINC384465 ZINC | 0.636 | 236.3 Da LogP 3.42 TPSA 44.9 | ✓ Ro5 | ✓ Clean |
O=C(Nc1ccccc1)c1cc2ccccc2[nH]1
|
| ZINC12919870 ZINC | 0.618 | 214.3 Da LogP 2.40 TPSA 36.1 | ✓ Ro5 | ✓ Clean |
O=C(c1cc2ccccc2[nH]1)N1CCCC1
|
| ZINC2582702 ZINC | 0.613 | 205.2 Da LogP 1.56 TPSA 90.4 | ✓ Ro5 | ✓ Clean |
O=C(O)c1ccc2[nH]c(C(=O)O)cc2c1
|
| ZINC2582710 ZINC | 0.613 | 240.1 Da LogP 2.63 TPSA 53.1 | ✓ Ro5 | ✓ Clean |
O=C(O)c1cc2ccc(Br)cc2[nH]1
|
| ZINC402742 ZINC | 0.613 | 240.1 Da LogP 2.63 TPSA 53.1 | ✓ Ro5 | ✓ Clean |
O=C(O)c1cc2cc(Br)ccc2[nH]1
|
| ZINC20728176 ZINC | 0.611 | 301.3 Da LogP 0.54 TPSA 93.7 | ✓ Ro5 | ✓ Clean |
O=C(O)C(=O)N1CCN(C(=O)c2cc3ccccc3[nH]2)CC1
|
| ZINC23788096 ZINC | 0.611 | 333.4 Da LogP 2.77 TPSA 56.4 | ✓ Ro5 | ✓ Clean |
O=C(c1ccccc1)N1CCN(C(=O)c2cc3ccccc3[nH]2)CC1
|
| ZINC23582 ZINC | 0.606 | 211.2 Da LogP 3.02 TPSA 53.1 | ✓ Ro5 | ✓ Clean |
O=C(O)c1cc2c(ccc3ccccc32)[nH]1
|
| ZINC39341723 ZINC | 0.606 | 203.2 Da LogP 2.07 TPSA 70.2 | ✓ Ro5 | ✓ Clean |
CC(=O)c1ccc2cc(C(=O)O)[nH]c2c1
|
| ZINC19843563 ZINC | 0.600 | 218.2 Da LogP 0.98 TPSA 82.2 | ✓ Ro5 | ✓ Clean |
O=C(O)CNC(=O)c1cc2ccccc2[nH]1
|
| ZINC263620956 ZINC | 0.600 | 287.3 Da LogP 4.69 TPSA 53.1 | ✓ Ro5 | ✓ Clean |
O=C(O)c1cc2c(-c3cccc4ccccc34)cccc2[nH]1
|
| ZINC338381 ZINC | 0.600 | 250.3 Da LogP 3.44 TPSA 36.1 | ✓ Ro5 | ✓ Clean |
CN(C(=O)c1cc2ccccc2[nH]1)c1ccccc1
|
| ZINC35133185 ZINC | 0.600 | 256.3 Da LogP 3.57 TPSA 36.1 | ✓ Ro5 | ✓ Clean |
O=C(c1cc2ccccc2[nH]1)N1CCCCCCC1
|
| ZINC6344517 ZINC | 0.600 | 253.3 Da LogP 3.66 TPSA 62.3 | ✓ Ro5 | ✓ Clean |
O=C(O)c1cc2cc(Oc3ccccc3)ccc2[nH]1
|
| ZINC7911351 ZINC | 0.600 | 228.3 Da LogP 2.79 TPSA 36.1 | ✓ Ro5 | ✓ Clean |
O=C(c1cc2ccccc2[nH]1)N1CCCCC1
|
| ZINC7912494 ZINC | 0.600 | 242.3 Da LogP 3.18 TPSA 36.1 | ✓ Ro5 | ✓ Clean |
O=C(c1cc2ccccc2[nH]1)N1CCCCCC1
|
| ZINC2432858 ZINC | 0.594 | 287.1 Da LogP 2.47 TPSA 53.1 | ✓ Ro5 | ✓ Clean |
O=C(O)c1cc2cc(I)ccc2[nH]1
|
| ZINC2443762 ZINC | 0.594 | 287.1 Da LogP 2.47 TPSA 53.1 | ✓ Ro5 | ✓ Clean |
O=C(O)c1cc2ccc(I)cc2[nH]1
|
| ZINC12390058 ZINC | 0.583 | 271.3 Da LogP 1.47 TPSA 56.4 | ✓ Ro5 | ✓ Clean |
CC(=O)N1CCN(C(=O)c2cc3ccccc3[nH]2)CC1
|
| ZINC16636620 ZINC | 0.583 | 326.4 Da LogP 4.69 TPSA 44.9 | ✓ Ro5 | ✓ Clean |
O=C(NC(c1ccccc1)c1ccccc1)c1cc2ccccc2[nH]1
|
| ZINC509902 ZINC | 0.583 | 229.3 Da LogP 1.21 TPSA 48.1 | ✓ Ro5 | ✓ Clean |
O=C(c1cc2ccccc2[nH]1)N1CCNCC1
|
| ZINC5531695 ZINC | 0.583 | 251.3 Da LogP 3.52 TPSA 42.1 | ✓ Ro5 | ✓ Clean |
O=C(OCc1ccccc1)c1cc2ccccc2[nH]1
|
| ZINC6649233 ZINC | 0.583 | 250.3 Da LogP 3.10 TPSA 44.9 | ✓ Ro5 | ✓ Clean |
O=C(NCc1ccccc1)c1cc2ccccc2[nH]1
|
| ZINC2512141 ZINC | 0.579 | 305.4 Da LogP 3.13 TPSA 39.3 | ✓ Ro5 | ✓ Clean |
O=C(c1cc2ccccc2[nH]1)N1CCN(c2ccccc2)CC1
|
| ZINC3163645 ZINC | 0.576 | 211.2 Da LogP 3.02 TPSA 53.1 | ✓ Ro5 | ✓ Clean |
O=C(O)c1cc2ccc3ccccc3c2[nH]1
|
| ZINC12946715 ZINC | 0.571 | 202.3 Da LogP 2.31 TPSA 44.9 | ✓ Ro5 | ✓ Clean |
CC(C)NC(=O)c1cc2ccccc2[nH]1
|
| ZINC9970537 ZINC | 0.571 | 217.3 Da LogP 3.12 TPSA 42.1 | ✓ Ro5 | ✓ Clean |
CC(C)(C)OC(=O)c1cc2ccccc2[nH]1
|
| ZINC19843564 ZINC | 0.568 | 232.2 Da LogP 1.37 TPSA 82.2 | ✓ Ro5 | ✓ Clean |
O=C(O)CCNC(=O)c1cc2ccccc2[nH]1
|
| ZINC19843565 ZINC | 0.568 | 232.2 Da LogP 1.37 TPSA 82.2 | ✓ Ro5 | ✓ Clean |
C[C@@H](NC(=O)c1cc2ccccc2[nH]1)C(=O)O
|
| ZINC19868744 ZINC | 0.568 | 243.3 Da LogP 1.56 TPSA 39.3 | ✓ Ro5 | ✓ Clean |
CN1CCN(C(=O)c2cc3ccccc3[nH]2)CC1
|
| ZINC23549857 ZINC | 0.568 | 299.4 Da LogP 2.82 TPSA 67.0 | ✓ Ro5 | ✓ Clean |
O=C(CS(=O)(=O)c1ccccc1)c1cc2ccccc2[nH]1
|
| ZINC344370 ZINC | 0.568 | 230.3 Da LogP 1.64 TPSA 45.3 | ✓ Ro5 | ✓ Clean |
O=C(c1cc2ccccc2[nH]1)N1CCOCC1
|
| ZINC36163408 ZINC | 0.568 | 246.3 Da LogP 2.36 TPSA 36.1 | ✓ Ro5 | ✓ Clean |
O=C(c1cc2ccccc2[nH]1)N1CCSCC1
|
| ZINC9420925 ZINC | 0.568 | 232.2 Da LogP 1.37 TPSA 82.2 | ✓ Ro5 | ✓ Clean |
C[C@H](NC(=O)c1cc2ccccc2[nH]1)C(=O)O
|
| ZINC14985707 ZINC | 0.559 | 203.2 Da LogP 2.07 TPSA 70.2 | ✓ Ro5 | ✓ Clean |
CC(=O)c1ccc2[nH]c(C(=O)O)cc2c1
|
| ZINC2582700 ZINC | 0.559 | 217.3 Da LogP 3.16 TPSA 53.1 | ✓ Ro5 | ✓ Clean |
CC(C)(C)c1ccc2[nH]c(C(=O)O)cc2c1
|
| ZINC3748697 ZINC | 0.559 | 217.3 Da LogP 3.16 TPSA 53.1 | ✓ Ro5 | ✓ Clean |
CC(C)(C)c1ccc2cc(C(=O)O)[nH]c2c1
|
| ZINC13956836 ZINC | 0.556 | 204.2 Da LogP 0.89 TPSA 65.1 | ✓ Ro5 | ✓ Clean |
O=C(NCCO)c1cc2ccccc2[nH]1
|
| ZINC14796789 ZINC | 0.556 | 200.2 Da LogP 2.06 TPSA 44.9 | ✓ Ro5 | ✓ Clean |
O=C(NC1CC1)c1cc2ccccc2[nH]1
|
| ZINC15779808 ZINC | 0.556 | 260.3 Da LogP 3.88 TPSA 48.6 | ✓ Ro5 | ✓ Clean |
O=C(c1cc2ccccc2[nH]1)c1c[nH]c2ccccc12
|
| ZINC261232647 ZINC | 0.556 | 219.2 Da LogP 1.65 TPSA 79.4 | ✓ Ro5 | ✓ Clean |
COC(=O)c1ccc2cc(C(=O)O)[nH]c2c1
|
| ZINC38235439 ZINC | 0.556 | 204.2 Da LogP 1.80 TPSA 45.3 | ✓ Ro5 | ✓ Clean |
CON(C)C(=O)c1cc2ccccc2[nH]1
|
| ZINC13681944 ZINC | 0.553 | 294.3 Da LogP 2.72 TPSA 82.2 | ✓ Ro5 | ✓ Clean |
O=C(N[C@H](C(=O)O)c1ccccc1)c1cc2ccccc2[nH]1
|
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.