KpATCC43816 Protein target profile

bacterioferritin

Accession: VK055_3753

Gene: bfr AIK82307.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism 2 reactions UniProt A6TEX5
Length 128
Pocket druggability (P2Rank · AlphaFold DB model) 0.235
Metabolic reactions 2
Chokepoint No
Direct ligand evidence 0 63 total records
Functional annotation 0 EC 3 GO
Target summary

Promising target candidate with multiple supporting evidence streams.

Automated synthesis of the evidence currently loaded. Review the underlying records before prioritizing this protein.

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
3.2% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
N
DEG identity (%)
0.0 Higher values support similarity to known essential genes.

Structure confidence

ColabFold pLDDT
96.89 0-100 confidence; >70 supports local structural interpretation.

Binding-site evidence

AlphaFold DB / UniProt model

P2Rank'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.

Druggability (P2Rank) 0.235
Structure A6TEX5
Pocket Pocket 1
Druggability (FPocket) 0.403
Structure A6TEX5
Pocket Pocket 2
ColabFold model
P2Rank 0.237 · Pocket 1
FPocket 0.305 · Pocket 6
Core conservation Accessory gene
Roary core
CoreCruncher accessory
Gut microbiome 154 / 4744 genomes with a hit
Prevalence 3.2%

Metabolic context

Reactions catalyzed, pathway membership, and centrality in the genome-scale metabolic network.

Explore metabolic network

Metabolic context: no human homolog detected.

Relative network centrality 0.0% more central than 0.0% of genes in this genome
Chokepoint Not a chokepoint
Pathways

No specific KEGG pathway assigned - this reaction either has no KEGG mapping, or only matches a generic overview map with no route-level information.

Catalyzed reactions

2 reactions mapped to this gene in the metabolic model. Open the full network to see each one, with substrates/products and the reaction-reaction map.

Imported from KpATCC43816.sbml · 2026-07-09

Sequence

Primary amino-acid sequence viewer.

MFKNWGLMRLNDIEYHESIDEMKHADKYIERILFLEGIPNLQDLGKLGIGEDVEEMLRSDLRLELEGAQNLREAIAYADSVHDYVSRDMMIEILADEEGHIDWLETELDLIGKIGLQNYLQSQIKVSD

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

3 GO

Subcellular localization

Localization
Cytoplasmic

Gene Ontology (GO)

3
  • GO:0006826 The directed movement of iron (Fe) ions into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
  • GO:0008199 Binding to a ferric iron ion, Fe(III).
  • GO:0006879 A homeostatic process involved in the maintenance of a steady state level of iron ions within a cell.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

25 records
Show feature table
Start End DB Term Name
1 128 Gene3D G3DSA:1.20.1260.10 -
1 128 InterPro IPR012347 Ferritin-like
1 127 PIRSF PIRSF002560 Bacterioferritin
1 127 InterPro IPR002024 Bacterioferritin
14 34 PRINTS PR00601 Bacterioferritin signature
14 34 InterPro IPR002024 Bacterioferritin
98 119 PRINTS PR00601 Bacterioferritin signature
98 119 InterPro IPR002024 Bacterioferritin
77 97 PRINTS PR00601 Bacterioferritin signature
77 97 InterPro IPR002024 Bacterioferritin
56 76 PRINTS PR00601 Bacterioferritin signature
56 76 InterPro IPR002024 Bacterioferritin
35 55 PRINTS PR00601 Bacterioferritin signature
35 55 InterPro IPR002024 Bacterioferritin
1 124 CDD cd00907 Bacterioferritin
1 124 InterPro IPR002024 Bacterioferritin
1 125 PANTHER PTHR30295 BACTERIOFERRITIN
1 115 ProSiteProfiles PS50905 Ferritin-like diiron domain profile.
1 115 InterPro IPR009040 Ferritin-like diiron domain
1 112 Pfam PF00210 Ferritin-like domain
1 112 InterPro IPR008331 Ferritin/DPS protein domain
1 125 NCBIfam TIGR00754 bacterioferritin
1 125 InterPro IPR002024 Bacterioferritin
1 124 SUPERFAMILY SSF47240 Ferritin-like
1 124 InterPro IPR009078 Ferritin-like superfamily

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.

Download VMD script Full viewer

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Drag to rotate — click the view, then scroll to zoom.

Pocket score High Medium Low
How colors and pocket overlays are used
Uniform protein color marks the displayed model as a single molecular object.
Experimental PDB structures may be colored by chain to distinguish subunits or copies present in the file.
Pocket colors and alpha spheres are evidence overlays for predicted binding cavities; they are not alternative protein chains.
'Alpha spheres' is FPocket's own cavity-shape geometry, imported when available and aligned with the loaded structure.
'Pocket atoms'/'Predicted site atoms' show the pocket's residue atoms instead: P2Rank reports residues rather than alpha spheres, and FPocket falls back to this when alpha-sphere geometry is unavailable or doesn't align.
'No pocket geometry' means neither alpha spheres nor residue-position data could be found for that pocket; the layer just highlights the same residues as 'Nearby residues'.
Pocket details Inspect a specific pocket, or open the full viewer

Binding pockets · P2Rank

Druggability (P2Rank): high ≥ 0.5 · medium 0.2–0.49 · low < 0.2

Pocket 1 P2Rank #1
0.235
Show in viewer
Surrounding area
Pocket 2 P2Rank #2
0.14
Show in viewer
Surrounding area
Pocket 3 P2Rank #3
0.02
Show in viewer
Surrounding area

Binding pockets · FPocket

Druggability (FPocket): high ≥ 0.7 · medium 0.4–0.69 · low < 0.4

Pocket 1 FPocket #2
0.403
Show in viewer
Surrounding area
Residue sets
UniProt: Binding site:100-100
UniProt: Binding site:16-16
UniProt: Binding site:20-20
UniProt: Binding site:21-21
UniProt: Binding site:22-22 axial binding residue
UniProt: Binding site:24-24
UniProt: Binding site:64-64
UniProt: Binding site:97-97
All structural evidence 0 experimental · 2 predicted

Structural evidence

0 + 2

Experimental 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_A6TEX5
AlphaFold DB full sequence Viewing
ColabFold VK055_3753
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.

63 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 13 records from similar proteins
Structural ligands 13 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
3PY PDB via homolog 104.1 Da · LogP -1.37 · TPSA 74.6 Open detail RCSB PDB
BTB PDB via homolog Detail RCSB PDB
CXS PDB via homolog Detail RCSB PDB
FEC PDB via homolog Detail RCSB PDB
FES PDB via homolog Detail RCSB PDB

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.

Show only:
Ligand Source crystal UniProt (homolog) MW · LogP · TPSA Lipinski PAINS SMILES
3PY RCSB PDB Q93PP9 104.1 Da LogP -1.37 TPSA 74.6 ✓ Ro5 ✓ Clean C(C(=O)C(=O)O)O
BTB RCSB PDB P0ABD3 209.2 Da LogP -3.01 TPSA 104.4 ✓ Ro5 ✓ Clean C(CO)N(CCO)C(CO)(CO)CO
CXS RCSB PDB Q9HWF9 221.3 Da LogP 1.19 TPSA 66.4 ✓ Ro5 ✓ Clean C1CCC(CC1)NCCCS(=O)(=O)O
FEC RCSB PDB Q93PP9 708.5 Da LogP 2.75 TPSA 165.1 1 viol. ✓ Clean Cc1c2cc3[n+]4c(cc5c(c(c6n5[Fe@]47n2c(c1CCC(=O)O…
FES RCSB PDB Q9HY79 175.8 Da LogP 1.29 TPSA 0.0 ✓ Ro5 ✓ Clean S1[Fe]S[Fe]1
KSY RCSB PDB Q9HY79 296.3 Da LogP 2.32 TPSA 78.4 ✓ Ro5 ✓ Clean c1cc(cc(c1)O)CCCNc2cccc3c2C(=O)NC3=O
KT1 RCSB PDB Q9HY79 326.4 Da LogP 2.33 TPSA 87.7 ✓ Ro5 ✓ Clean COc1cc(ccc1CCCNc2cccc3c2C(=O)NC3=O)O
KT4 RCSB PDB Q9HY79 312.3 Da LogP 2.03 TPSA 98.7 ✓ Ro5 ✓ Clean c1cc2c(c(c1)NCCCc3ccc(cc3O)O)C(=O)NC2=O
KT7 RCSB PDB Q9HY79 163.1 Da LogP 0.28 TPSA 66.4 ✓ Ro5 ✓ Clean c1cc2c(cc1O)C(=O)NC2=O
KTG RCSB PDB Q9HY79 296.3 Da LogP 2.32 TPSA 78.4 ✓ Ro5 ✓ Clean c1cc2c(c(c1)NCCCc3ccc(cc3)O)C(=O)NC2=O
KTM RCSB PDB Q9HY79 268.3 Da LogP 1.89 TPSA 78.4 ✓ Ro5 Alert c1ccc(c(c1)CNc2cccc3c2C(=O)NC3=O)O
KTV RCSB PDB Q9HY79 268.3 Da LogP 1.89 TPSA 78.4 ✓ Ro5 ✓ Clean c1cc(cc(c1)O)CNc2cccc3c2C(=O)NC3=O
MLI RCSB PDB P0ABD3 102.0 Da LogP -3.12 TPSA 80.3 ✓ Ro5 ✓ Clean C(C(=O)[O-])C(=O)[O-]

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.