KpKP13 Protein target profile

DNA protection during starvation protein

Accession: KP13_04308

Gene: dps AHE45542.1 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3GQL3
Length 167
Pocket druggability (P2Rank · AlphaFold DB model) 0.002
Direct ligand evidence 0 37 total records
Functional annotation 1 EC 7 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
2.4% 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
94.54 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) 0.002
Structure A0A0H3GQL3
Pocket Pocket 1
Druggability (FPocket) 0.725
Structure A0A0H3GQL3
Pocket Pocket 2
ColabFold model
P2Rank 0.007 · Pocket 1
FPocket 0.822 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 115 / 4744 genomes with a hit
Prevalence 2.4%

Sequence

Primary amino-acid sequence viewer.

MSTAKLVKSKASNLVYTRNDVADSEKKATIELLNRQVIQFIDLSLITKQAHWNMRGANFIAVHEMLDGFRTALTEHLDTMAERAVQLGGVALGTTQVINSKTPLQSYPLDIHHVQDHLKALADRYAVVANDVRKAIDEAKDEDTADIFTAASRDLDKFLWFIEANIE

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 7 GO

Subcellular localization

Localization
Cytoplasmic

Enzyme Commission (EC)

1

Gene Ontology (GO)

7
  • GO:0008199 Binding to a ferric iron ion, Fe(III).
  • GO:0016722 Catalysis of an oxidation-reduction in which the oxidation state of metal ion is altered.
  • GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
  • GO:0009295 The region of a virus, bacterial cell, mitochondrion or chloroplast to which the nucleic acid is confined.
  • GO:0003677 Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
  • GO:0030261 The progressive compaction of dispersed interphase chromatin into threadlike chromosomes prior to mitotic or meiotic nuclear division, or during apoptosis, in eukaryotic cells.
  • 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
30 166 Pfam PF00210 Ferritin-like domain
30 166 InterPro IPR008331 Ferritin/DPS protein domain
10 167 SUPERFAMILY SSF47240 Ferritin-like
10 167 InterPro IPR009078 Ferritin-like superfamily
8 167 PIRSF PIRSF005900 Dps
8 167 InterPro IPR002177 DNA-binding protein Dps
77 91 ProSitePatterns PS00819 Dps protein family signature 2.
77 91 InterPro IPR023188 DNA-binding protein Dps, conserved site
1 167 Hamap MF_01441 DNA protection during starvation protein [dps].
1 167 InterPro IPR023067 DNA protection during starvation protein, gammaproteobacteria
51 67 ProSitePatterns PS00818 Dps protein family signature 1.
51 67 InterPro IPR023188 DNA-binding protein Dps, conserved site
1 166 PANTHER PTHR42932 GENERAL STRESS PROTEIN 20U
1 166 InterPro IPR002177 DNA-binding protein Dps
144 162 PRINTS PR01346 Helicobacter neutrophil-activating protein A family signature
144 162 InterPro IPR002177 DNA-binding protein Dps
51 67 PRINTS PR01346 Helicobacter neutrophil-activating protein A family signature
51 67 InterPro IPR002177 DNA-binding protein Dps
75 91 PRINTS PR01346 Helicobacter neutrophil-activating protein A family signature
75 91 InterPro IPR002177 DNA-binding protein Dps
2 167 FunFam G3DSA:1.20.1260.10:FF:000003 DNA protection during starvation protein
2 167 Gene3D G3DSA:1.20.1260.10 -
2 167 InterPro IPR012347 Ferritin-like
31 166 CDD cd01043 DPS
31 166 InterPro IPR002177 DNA-binding protein Dps

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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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
0.002
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
0.725
Show in viewer
Surrounding area
Residue sets
UniProt: Binding site:51-51
UniProt: Binding site:78-78
UniProt: Binding site:82-82
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_A0A0H3GQL3
AlphaFold DB full sequence Viewing
ColabFold KP13_04308
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.

37 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 3 records from similar proteins
Structural ligands 3 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 34 similarity-based ZINC candidates
Best available ligand signal
FEO PDB via homolog 127.7 Da · LogP -0.07 · TPSA 9.2 Open detail RCSB PDB
OFE PDB via homolog Detail RCSB PDB
SIN PDB via homolog Detail RCSB PDB
ZINC1529497 ZINC proposed compound · Tanimoto 0.615 Detail ZINC
ZINC1531045 ZINC proposed compound · Tanimoto 0.615 Detail ZINC

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
FEO RCSB PDB P83695 127.7 Da LogP -0.07 TPSA 9.2 ✓ Ro5 ✓ Clean O([Fe])[Fe]
OFE RCSB PDB Q1X6M4 71.8 Da LogP -0.12 TPSA 17.1 ✓ Ro5 ✓ Clean O=[Fe]
SIN RCSB PDB Q99YU7 118.1 Da LogP -0.06 TPSA 74.6 ✓ Ro5 ✓ Clean C(CC(=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.