Protein profile
KP13_01281
Cellobiose-specific phosphotransferase enzyme IIB component
Genome: KpKP13
Overview
Basic information about this protein and its source genome.
- Accession
- KP13_01281
- Gene
- AHE46653.1 celA
- Status
- annotated
- Amino acids
- 91
- Structure source
- AlphaFold + ColabFold
Target profile
Computed evidence for target prioritization.
- Human off-target
- No hit
- Human identity (%)
- 0.0
- Gut microbiome off-target
- hit
- Essential (DEG)
- Y
- DEG identity (%)
- 43.82
- DEG E-value
- 3.03e-18
- Localization
- Unknown
- ColabFold pLDDT
- 95.24
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.
Gene Ontology (GO)
3- GO:0009401 The uptake and phosphorylation of specific carbohydrates from the extracellular environment; uptake and phosphorylation are coupled, making the PTS a link between the uptake and metabolism of sugars; phosphoenolpyruvate is the original phosphate donor; phosphoenolpyruvate passes the phosphate via a signal transduction pathway, to enzyme 1 (E1), which in turn passes it on to the histidine protein, HPr; the next step in the system involves sugar-specific membrane-bound complex, enzyme 2 (EII), which transports the sugar into the cell; it includes the sugar permease, which catalyzes the transport reactions; EII is usually divided into three different domains, EIIA, EIIB, and EIIC.
- GO:0008982 Catalysis of the PEP-dependent, phosphoryl transfer-driven transport of substances across a membrane. The transport happens by catalysis of the reaction: protein N-phosphohistidine + sugar(out) = protein histidine + sugar phosphate(in). This differs from primary and secondary active transport in that the solute is modified during transport.
- GO:0016301 Catalysis of the transfer of a phosphate group, usually from ATP, to a substrate molecule.
Sequence Features
Domain/signature hits from InterPro and related databases.
Show feature table
| Start | End | DB | Term | Name |
|---|---|---|---|---|
| 1 | 87 | CDD | cd05564 | PTS_IIB_chitobiose_lichenan |
| 1 | 90 | SUPERFAMILY | SSF52794 | PTS system IIB component-like |
| 1 | 90 | InterPro | IPR036095 | PTS system IIB component-like superfamily |
| 1 | 91 | ProSiteProfiles | PS51100 | PTS_EIIB type-3 domain profile. |
| 1 | 91 | InterPro | IPR013012 | Phosphotransferase system, EIIB component, type 3 |
| 1 | 91 | Gene3D | G3DSA:3.40.50.2300 | - |
| 1 | 89 | PANTHER | PTHR34581 | PTS SYSTEM N,N'-DIACETYLCHITOBIOSE-SPECIFIC EIIB COMPONENT |
| 1 | 84 | Pfam | PF02302 | PTS system, Lactose/Cellobiose specific IIB subunit |
| 1 | 84 | InterPro | IPR003501 | Phosphotransferase system, EIIB component, type 2/3 |
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 + 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_A0A0H3GIB1
|
AlphaFold | — | — | full sequence | — | Viewing |
|
ColabFold
KP13_01281
|
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 | 3.87 | 0.151 | ||||||
| 2 | 3.1 | 0.104 |
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 |
|---|---|---|---|---|---|---|---|
| 3 | 0.351 |
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 | 7.42 | 0.389 | ||||||
| 2 | 4.16 | 0.169 |
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 |
|---|---|---|---|---|---|---|
| PO3 | P69795 | 79.0 Da LogP -1.64 TPSA 63.2 | ✓ Ro5 | ✓ Clean |
[O-][P-](=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).
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.