Protein profile
PA4052
transcription antitermination protein NusB
Genome: NC_002516.2
Overview
Basic information about this protein and its source genome.
- Accession
- PA4052
- Gene
- nusB PA4052
- Status
- annotated
- Amino acids
- 159
- Structure source
- AlphaFold
Target profile
Computed evidence for target prioritization.
- Human off-target
- No hit
- Gut microbiome off-target
- hit
- Essential (DEG)
- Y
- Localization
- Unknown
Selected Druggability evidence
Selected 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.
Gene Ontology (GO)
5- GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
- GO:0003723 Binding to an RNA molecule or a portion thereof.
- GO:0006353 The completion of transcription: the RNA polymerase pauses, the RNA-DNA hybrid dissociates, followed by the release of the RNA polymerase from its DNA template.
- GO:0031564 A positive regulation of gene expression mechanism that allows RNA polymerase to continue transcription beyond a termination site, thus allowing expression of downstream genes under specific conditions.
- GO:0006355 Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
Sequence Features
Domain/signature hits from InterPro and related databases.
Show feature table
| Start | End | DB | Term | Name |
|---|---|---|---|---|
| 19 | 150 | SUPERFAMILY | SSF48013 | NusB-like |
| 19 | 150 | InterPro | IPR035926 | NusB-like superfamily |
| 61 | 148 | PANTHER | PTHR11078 | N UTILIZATION SUBSTANCE PROTEIN B-RELATED |
| 61 | 148 | InterPro | IPR011605 | NusB antitermination factor |
| 22 | 146 | Pfam | PF01029 | NusB family |
| 22 | 146 | InterPro | IPR006027 | NusB/RsmB/TIM44 |
| 16 | 153 | Gene3D | G3DSA:1.10.940.10 | - |
| 16 | 153 | InterPro | IPR035926 | NusB-like superfamily |
| 1 | 21 | MobiDBLite | mobidb-lite | consensus disorder prediction |
| 21 | 147 | NCBIfam | TIGR01951 | transcription antitermination factor NusB |
| 21 | 147 | InterPro | IPR011605 | NusB antitermination factor |
| 19 | 150 | Hamap | MF_00073 | Transcription antitermination protein NusB [nusB]. |
| 19 | 150 | InterPro | IPR011605 | NusB antitermination factor |
| 21 | 147 | CDD | cd00619 | Terminator_NusB |
| 16 | 153 | FunFam | G3DSA:1.10.940.10:FF:000001 | Transcription antitermination factor NusB |
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 + 1Experimental PDB entries and predicted models. Click Switch to display a different structure in the viewer.
| Entry | Method | Resolution | Chain | Coverage | Links | Status |
|---|---|---|---|---|---|---|
|
AlphaFold
PA4052
|
AlphaFold | — | — | full sequence | — | Viewing |
Pocket details FPocket · P2Rank — toggle visibility and zoom from here, or open full viewer
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 | 0.903 | ||||||
| 3 | 0.239 |
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 |
|---|---|---|---|---|---|---|
| NHE | P0A780 | 207.3 Da LogP 0.80 TPSA 66.4 | ✓ Ro5 | ✓ Clean |
C1CCC(CC1)NCCS(=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 |
|---|---|---|---|---|---|
| ZINC1710230 | 1.000 | 207.3 Da LogP 0.80 TPSA 66.4 | ✓ Ro5 | ✓ Clean |
O=S(=O)(O)CCNC1CCCCC1
|
| ZINC2004372 | 0.786 | 221.3 Da LogP 1.19 TPSA 66.4 | ✓ Ro5 | ✓ Clean |
O=S(=O)(O)CCCNC1CCCCC1
|
| ZINC38364153 | 0.786 | 235.3 Da LogP 1.58 TPSA 66.4 | ✓ Ro5 | ✓ Clean |
O=S(=O)(O)CCCCNC1CCCCC1
|
| ZINC1532902 | 0.700 | 206.2 Da LogP -0.86 TPSA 132.1 | ✓ Ro5 | ✓ Clean |
O=C(O)CC[C@@](O)(CC(=O)O)C(=O)O
|
| ZINC2018106 | 0.700 | 206.2 Da LogP -0.86 TPSA 132.1 | ✓ Ro5 | ✓ Clean |
O=C(O)CC[C@](O)(CC(=O)O)C(=O)O
|
| ZINC3593496 | 0.652 | 206.2 Da LogP -1.16 TPSA 121.1 | ✓ Ro5 | ✓ Clean |
COC(=O)C[C@@](O)(CC(=O)O)C(=O)O
|
| ZINC3593497 | 0.652 | 206.2 Da LogP -1.16 TPSA 121.1 | ✓ Ro5 | ✓ Clean |
COC(=O)C[C@](O)(CC(=O)O)C(=O)O
|
| ZINC14686440 | 0.625 | 436.4 Da LogP -2.64 TPSA 247.9 | 1 viol. | ✓ Clean |
O=C(O)C[C@](O)(CC(=O)NCCCCNC(=O)C[C@@](O)(CC(=O…
|
| ZINC14686442 | 0.625 | 436.4 Da LogP -2.64 TPSA 247.9 | 1 viol. | ✓ Clean |
O=C(O)C[C@@](O)(CC(=O)NCCCCNC(=O)C[C@](O)(CC(=O…
|
| ZINC14686444 | 0.625 | 436.4 Da LogP -2.64 TPSA 247.9 | 1 viol. | ✓ Clean |
O=C(O)C[C@@](O)(CC(=O)NCCCCNC(=O)C[C@@](O)(CC(=…
|
| ZINC13398039 | 0.577 | 234.2 Da LogP -0.38 TPSA 121.1 | ✓ Ro5 | ✓ Clean |
CC(C)OC(=O)C[C@](O)(CC(=O)O)C(=O)O
|
| ZINC2528012 | 0.577 | 234.2 Da LogP -0.38 TPSA 121.1 | ✓ Ro5 | ✓ Clean |
CC(C)OC(=O)C[C@@](O)(CC(=O)O)C(=O)O
|
| ZINC146315135 | 0.560 | 204.2 Da LogP 0.86 TPSA 94.8 | ✓ Ro5 | ✓ Clean |
CCCCC[C@@](O)(CC(=O)O)C(=O)O
|
| ZINC146315336 | 0.560 | 204.2 Da LogP 0.86 TPSA 94.8 | ✓ Ro5 | ✓ Clean |
CCCCC[C@](O)(CC(=O)O)C(=O)O
|
| ZINC19367005 | 0.560 | 224.4 Da LogP 2.83 TPSA 24.1 | ✓ Ro5 | ✓ Clean |
C1CCC(NCCNC2CCCCC2)CC1
|
| ZINC26468763 | 0.559 | 243.3 Da LogP -1.35 TPSA 100.5 | ✓ Ro5 | ✓ Clean |
O=S(=O)(O)CCN[C@@H]1CCS(=O)(=O)C1
|
| ZINC26468770 | 0.559 | 243.3 Da LogP -1.35 TPSA 100.5 | ✓ Ro5 | ✓ Clean |
O=S(=O)(O)CCN[C@H]1CCS(=O)(=O)C1
|
| ZINC1850353 | 0.556 | 206.1 Da LogP -0.86 TPSA 132.1 | ✓ Ro5 | ✓ Clean |
O=C(O)CC(O)(CC(=O)O)CC(=O)O
|
| ZINC5188799 | 0.556 | 280.5 Da LogP 4.39 TPSA 24.1 | ✓ Ro5 | ✓ Clean |
C(CCCNC1CCCCC1)CCNC1CCCCC1
|
| ZINC2168583 | 0.529 | 237.3 Da LogP 0.16 TPSA 86.6 | ✓ Ro5 | ✓ Clean |
O=S(=O)(O)C[C@@H](O)CNC1CCCCC1
|
| ZINC2168584 | 0.529 | 237.3 Da LogP 0.16 TPSA 86.6 | ✓ Ro5 | ✓ Clean |
O=S(=O)(O)C[C@H](O)CNC1CCCCC1
|
| ZINC13398014 | 0.522 | 220.2 Da LogP -1.07 TPSA 110.1 | ✓ Ro5 | ✓ Clean |
COC(=O)CC(O)(CC(=O)OC)C(=O)O
|
| ZINC3861629 | 0.522 | 206.1 Da LogP -1.16 TPSA 121.1 | ✓ Ro5 | ✓ Clean |
COC(=O)C(O)(CC(=O)O)CC(=O)O
|
| ZINC130127586 | 0.515 | 260.4 Da LogP 1.38 TPSA 58.2 | ✓ Ro5 | ✓ Clean |
O=S(=O)(NCCNC1CCCCCC1)C1CC1
|
| ZINC78421079 | 0.515 | 210.3 Da LogP 1.43 TPSA 41.1 | ✓ Ro5 | ✓ Clean |
O=C(NCCNC1CCCCC1)C1CC1
|
| ZINC100969993 | 0.500 | 359.5 Da LogP 2.70 TPSA 123.9 | ✓ Ro5 | ✓ Clean |
CCCCCCCCCCCCNC(=O)C[C@](O)(CC(=O)O)C(=O)O
|
| ZINC100969996 | 0.500 | 359.5 Da LogP 2.70 TPSA 123.9 | ✓ Ro5 | ✓ Clean |
CCCCCCCCCCCCNC(=O)C[C@@](O)(CC(=O)O)C(=O)O
|
| ZINC122239480 | 0.500 | 238.4 Da LogP 2.22 TPSA 41.1 | ✓ Ro5 | ✓ Clean |
O=C(NCCNC1CCCCCC1)C1CCC1
|
| ZINC165485 | 0.500 | 301.8 Da LogP 3.04 TPSA 46.2 | ✓ Ro5 | ✓ Clean |
O=S(=O)(CCNC1CCCCC1)c1ccc(Cl)cc1
|
| ZINC1711854 | 0.500 | 248.2 Da LogP -0.13 TPSA 149.2 | ✓ Ro5 | ✓ Clean |
O=C(O)CC(CC(=O)O)(CC(=O)O)CC(=O)O
|
| ZINC38889906 | 0.500 | 226.4 Da LogP 3.21 TPSA 38.0 | ✓ Ro5 | ✓ Clean |
NCCNC1CCCCCCCCCCC1
|
| ZINC60934954 | 0.500 | 315.9 Da LogP 3.43 TPSA 46.2 | ✓ Ro5 | ✓ Clean |
O=S(=O)(CCNC1CCCCCC1)c1ccc(Cl)cc1
|
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.