Overview
Basic information about this protein and its source genome.
- Accession
- VK055_1804
- Gene
- AIK80417.1 pcp2
- Status
- annotated
- Amino acids
- 214
- Structure source
- AlphaFold + ColabFold
Target profile
Computed evidence for target prioritization.
- Human off-target
- hit
- Human identity (%)
- 30.0
- Human E-value
- 3.13e-14
- Gut microbiome off-target
- hit
- Essential (DEG)
- N
- DEG identity (%)
- 0.0
- Localization
- Cytoplasmic
- ColabFold pLDDT
- 96.95
Selected Druggability evidence
AlphaFold / UniProt modelSelected Druggability is the FPocket score chosen for ranking using the curated structure priority. The 3D viewer may show a different loaded structure, so its visible pockets can differ.
Sequence
Primary amino-acid sequence viewer.
Functional Annotations
Enzyme classification and Gene Ontology terms linked to this protein.
Enzyme Commission (EC)
1Gene Ontology (GO)
4- GO:0008234 Catalysis of the hydrolysis of peptide bonds in a polypeptide chain by a mechanism in which the sulfhydryl group of a cysteine residue at the active center acts as a nucleophile.
- GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
- GO:0006508 The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
- GO:0016920 Catalysis of the release of the N-terminal pyroglutamyl group from a peptide or protein.
Sequence Features
Domain/signature hits from InterPro and related databases.
Show feature table
| Start | End | DB | Term | Name |
|---|---|---|---|---|
| 69 | 85 | ProSitePatterns | PS01333 | Pyrrolidone-carboxylate peptidase glutamic acid active site. |
| 69 | 85 | InterPro | IPR033693 | Pyroglutamyl peptidase I, Glu active site |
| 4 | 195 | CDD | cd00501 | Peptidase_C15 |
| 4 | 195 | InterPro | IPR000816 | Peptidase C15, pyroglutamyl peptidase I |
| 4 | 211 | NCBIfam | TIGR00504 | pyroglutamyl-peptidase I |
| 4 | 211 | InterPro | IPR029762 | Pyroglutamyl peptidase I, bacterial-type |
| 1 | 212 | PIRSF | PIRSF015592 | Pyrrolidone-crbxlat_pptds |
| 1 | 212 | InterPro | IPR000816 | Peptidase C15, pyroglutamyl peptidase I |
| 4 | 201 | PANTHER | PTHR23402 | PROTEASE FAMILY C15 PYROGLUTAMYL-PEPTIDASE I-RELATED |
| 4 | 201 | InterPro | IPR016125 | Peptidase C15, pyroglutamyl peptidase I-like |
| 3 | 214 | SUPERFAMILY | SSF53182 | Pyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) |
| 3 | 214 | InterPro | IPR036440 | Peptidase C15, pyroglutamyl peptidase I-like superfamily |
| 130 | 144 | ProSitePatterns | PS01334 | Pyrrolidone-carboxylate peptidase cysteine active site. |
| 130 | 144 | InterPro | IPR033694 | Pyroglutamyl peptidase I, Cys active site |
| 4 | 201 | Pfam | PF01470 | Pyroglutamyl peptidase |
| 4 | 27 | PRINTS | PR00706 | Pyroglutamyl peptidase I (C15) family signature |
| 4 | 27 | InterPro | IPR000816 | Peptidase C15, pyroglutamyl peptidase I |
| 62 | 74 | PRINTS | PR00706 | Pyroglutamyl peptidase I (C15) family signature |
| 62 | 74 | InterPro | IPR000816 | Peptidase C15, pyroglutamyl peptidase I |
| 80 | 100 | PRINTS | PR00706 | Pyroglutamyl peptidase I (C15) family signature |
| 80 | 100 | InterPro | IPR000816 | Peptidase C15, pyroglutamyl peptidase I |
| 161 | 173 | PRINTS | PR00706 | Pyroglutamyl peptidase I (C15) family signature |
| 161 | 173 | InterPro | IPR000816 | Peptidase C15, pyroglutamyl peptidase I |
| 132 | 148 | PRINTS | PR00706 | Pyroglutamyl peptidase I (C15) family signature |
| 132 | 148 | InterPro | IPR000816 | Peptidase C15, pyroglutamyl peptidase I |
| 1 | 214 | FunFam | G3DSA:3.40.630.20:FF:000001 | Pyrrolidone-carboxylate peptidase |
| 2 | 200 | Hamap | MF_00417 | Pyrrolidone-carboxylate peptidase [pcp]. |
| 2 | 200 | InterPro | IPR029762 | Pyroglutamyl peptidase I, bacterial-type |
| 3 | 214 | Gene3D | G3DSA:3.40.630.20 | - |
3D Structure
Selected loaded structure. Experimental PDB entries may cover only a portion of the sequence; predicted models typically cover the full protein.
Loading 3D structure...
Structural evidence
0 + 2Experimental PDB entries and predicted models. Click Switch to display a different structure in the viewer.
| Entry | Method | Resolution | Chain | Coverage | Links | Status |
|---|---|---|---|---|---|---|
|
AlphaFold
AF_A0A0H3GLI0
|
AlphaFold | — | — | full sequence | — | Viewing |
|
ColabFold
VK055_1804
|
ColabFold | — | — | full sequence | — | Loaded |
Pocket details FPocket · P2Rank — toggle visibility and zoom from here, or open full viewer
Pockets (P2RANK)
Showing top-ranked P2Rank candidates by probability. Probability is color-coded per P2Rank calibration: high (≥ 0.5), medium (0.2 – 0.49), low (< 0.2).
| P2RANK | Sticks | Spheres | Surfaces | Score | Probability | Labels | Zoom | Positions |
|---|---|---|---|---|---|---|---|---|
| 1 | 7.77 | 0.412 | ||||||
| 2 | 0.79 | 0.002 |
Pockets (FPOCKET)
Showing top-ranked FPocket candidates by druggability. Druggability is color-coded: high (0.7 or higher), medium (0.4 to 0.69), low (below 0.4).
| FPOCKET | Sticks | Spheres | Surfaces | Druggability | Labels | Zoom | Positions |
|---|---|---|---|---|---|---|---|
| 1 | 0.796 |
Pockets (P2RANK)
Showing top-ranked P2Rank candidates by probability. Probability is color-coded per P2Rank calibration: high (≥ 0.5), medium (0.2 – 0.49), low (< 0.2).
| P2RANK | Sticks | Spheres | Surfaces | Score | Probability | Labels | Zoom | Positions |
|---|---|---|---|---|---|---|---|---|
| 1 | 7.21 | 0.375 |
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.
Highest-confidence structural evidence: ligands co-crystallized with this exact protein. If the source PDB is loaded in TPW, 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 |
|---|---|---|---|---|---|---|
| PCA | Q9RX25 | 129.1 Da LogP -0.65 TPSA 66.4 | ✓ Ro5 | ✓ Clean |
C1CC(=O)N[C@@H]1C(=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 |
|---|---|---|---|---|---|
| ZINC227513 | 0.515 | 204.2 Da LogP 0.90 TPSA 58.2 | ✓ Ro5 | ✓ Clean |
O=C1CC[C@H](C(=O)Nc2ccccc2)N1
|
| ZINC227517 | 0.515 | 204.2 Da LogP 0.90 TPSA 58.2 | ✓ Ro5 | ✓ Clean |
O=C1CC[C@@H](C(=O)Nc2ccccc2)N1
|
| ZINC4899454 | 0.515 | 200.2 Da LogP -1.15 TPSA 95.5 | ✓ Ro5 | ✓ Clean |
C[C@H](NC(=O)[C@@H]1CCC(=O)N1)C(=O)O
|
| ZINC5273553 | 0.515 | 200.2 Da LogP -1.15 TPSA 95.5 | ✓ Ro5 | ✓ Clean |
C[C@@H](NC(=O)[C@@H]1CCC(=O)N1)C(=O)O
|
| ZINC5273554 | 0.515 | 200.2 Da LogP -1.15 TPSA 95.5 | ✓ Ro5 | ✓ Clean |
C[C@H](NC(=O)[C@H]1CCC(=O)N1)C(=O)O
|
| ZINC145828804 | 0.500 | 226.2 Da LogP -1.13 TPSA 92.8 | ✓ Ro5 | ✓ Clean |
O=C1CC[C@@H](C(=O)ON2C(=O)CCC2=O)N1
|
| ZINC1536869 | 0.500 | 244.3 Da LogP -0.75 TPSA 86.7 | ✓ Ro5 | ✓ Clean |
O=C1CC[C@H](C(=O)N2CSC[C@@H]2C(=O)O)N1
|
| ZINC222087811 | 0.500 | 226.3 Da LogP -0.36 TPSA 69.6 | ✓ Ro5 | ✓ Clean |
O=C1CC[C@H](C(=O)N(CCO)C2CCC2)N1
|
| ZINC3781245 | 0.500 | 244.3 Da LogP -0.75 TPSA 86.7 | ✓ Ro5 | ✓ Clean |
O=C1CC[C@@H](C(=O)N2CSC[C@H]2C(=O)O)N1
|
| ZINC408057584 | 0.500 | 222.3 Da LogP 0.57 TPSA 58.2 | ✓ Ro5 | ✓ Clean |
O=C1CC[C@@H](C(=O)NC(C2CC2)C2CC2)N1
|
| ZINC5133409 | 0.500 | 244.3 Da LogP -0.75 TPSA 86.7 | ✓ Ro5 | ✓ Clean |
O=C1CC[C@@H](C(=O)N2CSC[C@@H]2C(=O)O)N1
|
| ZINC5133422 | 0.500 | 244.3 Da LogP -0.75 TPSA 86.7 | ✓ Ro5 | ✓ Clean |
O=C1CC[C@H](C(=O)N2CSC[C@H]2C(=O)O)N1
|
| ZINC69918718 | 0.500 | 236.3 Da LogP 1.20 TPSA 49.4 | ✓ Ro5 | ✓ Clean |
O=C1CC[C@@H](C(=O)N(C2CCCC2)C2CC2)N1
|
| ZINC69918721 | 0.500 | 236.3 Da LogP 1.20 TPSA 49.4 | ✓ Ro5 | ✓ Clean |
O=C1CC[C@H](C(=O)N(C2CCCC2)C2CC2)N1
|
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.