Overview
Basic information about this protein and its source genome.
- Accession
- PA4613
- Gene
- PA4613 katB
- Status
- annotated
- Amino acids
- 513
- Structure source
- AlphaFold
Target profile
Computed evidence for target prioritization.
- Human off-target
- hit
- Human identity (%)
- 65.517
- Human E-value
- 3.01e-06
- Gut microbiome off-target
- hit
- Essential (DEG)
- Y
- Localization
- Periplasmic
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.
Enzyme Commission (EC)
1Gene Ontology (GO)
8- GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
- 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:0004096 Catalysis of the reaction: 2 H2O2 = O2 + 2 H2O.
- GO:0020037 Binding to a heme, a compound composed of iron complexed in a porphyrin (tetrapyrrole) ring.
- GO:0046872 Binding to a metal ion.
- GO:0042744 The chemical reactions and pathways resulting in the breakdown of hydrogen peroxide (H2O2).
- GO:0042542 Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a hydrogen peroxide (H2O2) stimulus.
- GO:0006979 Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of oxidative stress, a state often resulting from exposure to high levels of reactive oxygen species, e.g. superoxide anions, hydrogen peroxide (H2O2), and hydroxyl radicals.
Sequence Features
Domain/signature hits from InterPro and related databases.
Show feature table
| Start | End | DB | Term | Name |
|---|---|---|---|---|
| 1 | 12 | Phobius | SIGNAL_PEPTIDE_N_REGION | N-terminal region of a signal peptide. |
| 1 | 30 | SignalP_GRAM_POSITIVE | SignalP-TM | SignalP-TM |
| 29 | 503 | SUPERFAMILY | SSF56634 | Heme-dependent catalase-like |
| 29 | 503 | InterPro | IPR020835 | Catalase superfamily |
| 30 | 513 | Gene3D | G3DSA:2.40.180.10 | Catalase core domain |
| 70 | 86 | ProSitePatterns | PS00438 | Catalase proximal active site signature. |
| 70 | 86 | InterPro | IPR024708 | Catalase active site |
| 13 | 24 | Phobius | SIGNAL_PEPTIDE_H_REGION | Hydrophobic region of a signal peptide. |
| 34 | 411 | Pfam | PF00199 | Catalase |
| 34 | 411 | InterPro | IPR011614 | Catalase core domain |
| 1 | 30 | SignalP_EUK | SignalP-noTM | SignalP-noTM |
| 31 | 513 | Phobius | NON_CYTOPLASMIC_DOMAIN | Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region. |
| 34 | 414 | SMART | SM01060 | Catalase_2 |
| 34 | 414 | InterPro | IPR011614 | Catalase core domain |
| 32 | 497 | CDD | cd08154 | catalase_clade_1 |
| 1 | 30 | Phobius | SIGNAL_PEPTIDE | Signal peptide region |
| 391 | 407 | MobiDBLite | mobidb-lite | consensus disorder prediction |
| 30 | 503 | FunFam | G3DSA:2.40.180.10:FF:000002 | Catalase |
| 391 | 413 | MobiDBLite | mobidb-lite | consensus disorder prediction |
| 435 | 495 | Pfam | PF06628 | Catalase-related immune-responsive |
| 435 | 495 | InterPro | IPR010582 | Catalase immune-responsive domain |
| 357 | 365 | ProSitePatterns | PS00437 | Catalase proximal heme-ligand signature. |
| 357 | 365 | InterPro | IPR002226 | Catalase haem-binding site |
| 30 | 503 | ProSiteProfiles | PS51402 | catalase family profile. |
| 30 | 503 | InterPro | IPR018028 | Catalase, mono-functional, haem-containing |
| 25 | 30 | Phobius | SIGNAL_PEPTIDE_C_REGION | C-terminal region of a signal peptide. |
| 47 | 70 | PRINTS | PR00067 | Catalase signature |
| 47 | 70 | InterPro | IPR018028 | Catalase, mono-functional, haem-containing |
| 109 | 127 | PRINTS | PR00067 | Catalase signature |
| 109 | 127 | InterPro | IPR018028 | Catalase, mono-functional, haem-containing |
| 344 | 370 | PRINTS | PR00067 | Catalase signature |
| 344 | 370 | InterPro | IPR018028 | Catalase, mono-functional, haem-containing |
| 130 | 147 | PRINTS | PR00067 | Catalase signature |
| 130 | 147 | InterPro | IPR018028 | Catalase, mono-functional, haem-containing |
| 149 | 167 | PRINTS | PR00067 | Catalase signature |
| 149 | 167 | InterPro | IPR018028 | Catalase, mono-functional, haem-containing |
| 312 | 339 | PRINTS | PR00067 | Catalase signature |
| 312 | 339 | InterPro | IPR018028 | Catalase, mono-functional, haem-containing |
| 29 | 496 | PANTHER | PTHR11465 | CATALASE |
| 29 | 496 | InterPro | IPR018028 | Catalase, mono-functional, haem-containing |
| 24 | 503 | PIRSF | PIRSF038928 | Catalase_clade1-3 |
| 24 | 503 | InterPro | IPR024711 | Catalase, mono-functional, haem-containing, clades 1 and 3 |
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
PA4613
|
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 | 0.793 |
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 |
|---|---|---|---|---|---|---|
| 3TR | P00432 | 84.1 Da LogP -0.61 TPSA 67.6 | ✓ Ro5 | ✓ Clean |
c1[nH]nc(n1)N
|
|
| AZI | P00432 | 42.0 Da LogP 0.87 TPSA 58.7 | ✓ Ro5 | Alert |
[N-]=[N+]=[N-]
|
|
| H2S | P21179 | 34.1 Da LogP 0.11 TPSA 0.0 | ✓ Ro5 | ✓ Clean |
S
|
|
| HDD | P21179 | 632.5 Da LogP 3.21 TPSA 101.9 | 1 viol. | ✓ Clean |
Cc1c2n3c(c1CCC(=O)O)C=C4[C@]5(CCC(=O)O5)[C@@](C…
|
|
| HDE | P21179 | 638.5 Da LogP 4.58 TPSA 101.9 | 1 viol. | ✓ Clean |
CCc1c(c2n3c1Cc4c(c(c5n4[Fe]36n7c(c(c(c7C=C8N6C(…
|
|
| NH3 | P00432 | 17.0 Da LogP 0.16 TPSA 35.0 | ✓ Ro5 | ✓ Clean |
N
|
|
| O | P29422 | 18.0 Da LogP -0.82 TPSA 31.5 | ✓ Ro5 | ✓ Clean |
O
|
|
| OXY | P77872 | 32.0 Da LogP 0.07 TPSA 34.1 | ✓ Ro5 | ✓ Clean |
O=O
|
|
| PEO | P21179 | 34.0 Da LogP 0.02 TPSA 40.5 | ✓ Ro5 | ✓ Clean |
OO
|
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).
| Ligand | UniProt (homolog) | pchembl | MW · LogP · TPSA | Lipinski | PAINS | SMILES |
|---|---|---|---|---|---|---|
| CHEMBL89295 | P00432 | — | 65.0 Da LogP -2.13 TPSA 58.7 | ✓ Ro5 | Alert |
[N-]=[N+]=[N-].[Na+]
|
Proposed virtual-screening candidates from ZINC. Score = Tanimoto similarity to a known binder (0–1; higher = more similar).
No virtual-screening candidates for this protein.
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.