KpKP13 Protein target profile

Replicative DNA helicase

Accession: KP13_00389

Gene: dnaB AHE46873.1 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3GQ64
Length 471
Pocket druggability (P2Rank · AlphaFold DB model) 0.085
Direct ligand evidence 0 57 total records
Functional annotation 1 EC 10 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
4.3% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
Y
DEG identity (%)
98.514 Higher values support similarity to known essential genes.
DEG E-value
0.0 Smaller values mean stronger essential-gene similarity.

Structure confidence

ColabFold pLDDT
89.27 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) 0.085
Structure A0A0H3GQ64
Pocket Pocket 1
Druggability (FPocket) 0.535
Structure A0A0H3GQ64
Pocket Pocket 14
ColabFold model
P2Rank 0.269 · Pocket 1
FPocket 0.598 · Pocket 17
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 203 / 4744 genomes with a hit
Prevalence 4.3%

Sequence

Primary amino-acid sequence viewer.

MAGNKPFNKPQTETRERDPQLAGLKVPPHSIEAEQSVLGGLMLDNERWDDVAERVVADDFYTRPHRHIFTEMARLQESGSPIDLITLAESLERQGQLDSVGGFAYLAELSKNTPSAANISAYADIVRERAVVREMISVANEIAEAGFDPQGRTSEDLLDLAESRVFKIAESRANKDEGPKNIADVLDATVARIEQLFQQPHDGVTGVNTGYDDLNKKTAGLQPSDLIIVAARPSMGKTTFAMNLVENAAMLQDKPVLIFSLEMPSEQIMMRSLASLSRVDQTRIRTGQLDDEDWARISGTMGILLEKRNIYIDDSSGLTPTEVRSRARRIAREHGGIGLIMIDYLQLMRVPSLSDNRTLEIAEISRSLKALAKELQVPVVALSQLNRSLEQRADKRPVNSDLRESGSIEQDADLIMFIYRDEVYHENSDLKGIAEIIIGKQRNGPIGTVRLTFNGQWSRFDNYAGPQYDDE

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 10 GO

Subcellular localization

Localization
Cytoplasmic

Enzyme Commission (EC)

1

Gene Ontology (GO)

10
  • GO:0016887 Catalysis of the reaction: ATP + H2O = ADP + H+ phosphate. ATP hydrolysis is used in some reactions as an energy source, for example to catalyze a reaction or drive transport against a concentration gradient.
  • GO:0006260 The cellular metabolic process in which a cell duplicates one or more molecules of DNA. DNA replication begins when specific sequences, known as origins of replication, are recognized and bound by the origin recognition complex, and ends when the original DNA molecule has been completely duplicated and the copies topologically separated. The unit of replication usually corresponds to the genome of the cell, an organelle, or a virus. The template for replication can either be an existing DNA molecule or RNA.
  • GO:0003678 Unwinding of a DNA helix, driven by ATP hydrolysis.
  • GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
  • GO:0003677 Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
  • GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
  • GO:1990077 Any of a family of protein complexes that form at the origin of replication or stalled replication forks and function in replication primer synthesis in all organisms. Early complexes initiate double-stranded DNA unwinding. The core unit consists of a replicative helicase and a primase. The helicase further unwinds the DNA and recruits the polymerase machinery. The primase synthesizes RNA primers that act as templates for complementary stand replication by the polymerase machinery. The primosome contains a number of associated proteins and protein complexes and contributes to the processes of replication initiation, lagging strand elongation, and replication restart.
  • GO:0043139 Unwinding a DNA helix in the 5' to 3' direction, driven by ATP hydrolysis.
  • GO:0042802 Binding to an identical protein or proteins.
  • GO:0006269 The synthesis of a short nucleotide polymer using one strand of unwound DNA as a template. The product is usually a RNA molecule between 4-15 nucleotides long that provides a free 3'-OH that can be extended by DNA-directed DNA polymerases. In certain conditions, for example in response to DNA damage, some primases synthesize a DNA primer.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

23 records
Show feature table
Start End DB Term Name
21 183 Gene3D G3DSA:1.10.860.10 DNAb Helicase; Chain A
21 183 InterPro IPR016136 DNA helicase DnaB, N-terminal/DNA primase DnaG, C-terminal
25 136 SUPERFAMILY SSF48024 N-terminal domain of DnaB helicase
25 136 InterPro IPR036185 DNA helicase, DnaB-like, N-terminal domain superfamily
1 25 MobiDBLite mobidb-lite consensus disorder prediction
27 128 Pfam PF00772 DnaB-like helicase N terminal domain
27 128 InterPro IPR007693 DNA helicase, DnaB-like, N-terminal
206 462 Pfam PF03796 DnaB-like helicase C terminal domain
206 462 InterPro IPR007694 DNA helicase, DnaB-like, C-terminal
24 466 PANTHER PTHR30153 REPLICATIVE DNA HELICASE DNAB
184 463 Gene3D G3DSA:3.40.50.300 -
184 463 InterPro IPR027417 P-loop containing nucleoside triphosphate hydrolase
27 464 NCBIfam TIGR00665 replicative DNA helicase
27 464 InterPro IPR007692 DNA helicase, DnaB type
206 462 CDD cd00984 DnaB_C
223 429 SMART SM00382 AAA_5
223 429 InterPro IPR003593 AAA+ ATPase domain
20 183 FunFam G3DSA:1.10.860.10:FF:000002 Replicative DNA helicase
185 468 FunFam G3DSA:3.40.50.300:FF:000076 Replicative DNA helicase
200 467 ProSiteProfiles PS51199 Superfamily 4 helicase domain profile.
200 467 InterPro IPR007694 DNA helicase, DnaB-like, C-terminal
204 456 SUPERFAMILY SSF52540 P-loop containing nucleoside triphosphate hydrolases
204 456 InterPro IPR027417 P-loop containing nucleoside triphosphate hydrolase

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.

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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
0.085
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Surrounding area
Pocket 2 P2Rank #2
0.034
Show in viewer
Surrounding area
Pocket 3 P2Rank #3
0.018
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Surrounding area
Pocket 4 P2Rank #4
0.003
Likely same site as FPocket 14 7.3 Å 2 shared residues 50% of smaller site
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Surrounding area

Binding pockets · FPocket

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

Pocket 1 FPocket #14
0.535
Likely same site as P2Rank 4 7.3 Å 2 shared residues 50% of smaller site
Show in viewer
Surrounding area
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_A0A0H3GQ64
AlphaFold DB full sequence Viewing
ColabFold KP13_00389
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.

57 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 7 records from similar proteins
Structural ligands 7 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
08T PDB via homolog Open detail RCSB PDB
ALF PDB via homolog Detail RCSB PDB
ANP PDB via homolog Detail RCSB PDB
DTP PDB via homolog Detail RCSB PDB
FLC 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
08T RCSB PDB P0ACB0 [Be](OP(=O)(O)OP(=O)(O)OC[C@@H]1[C@H]([C@H]([C@…
ALF RCSB PDB Q9X4C9 103.0 Da LogP 1.30 TPSA 0.0 ✓ Ro5 ✓ Clean F[Al-](F)(F)F
ANP RCSB PDB P03692 506.2 Da LogP -2.06 TPSA 281.9 3 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…
DTP RCSB PDB P03692 491.2 Da LogP -0.60 TPSA 258.9 2 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3C[C@@H]([C@H](O3)CO[P@]…
FLC RCSB PDB O25916 189.1 Da LogP -5.25 TPSA 140.6 ✓ Ro5 ✓ Clean C(C(=O)[O-])C(CC(=O)[O-])(C(=O)[O-])O
TTP RCSB PDB P03692 482.2 Da LogP -1.16 TPSA 244.1 2 viol. ✓ Clean CC1=CN(C(=O)NC1=O)[C@H]2C[C@@H]([C@H](O2)CO[P@]…
TYD RCSB PDB P03692 402.2 Da LogP -1.28 TPSA 197.6 ✓ Ro5 ✓ Clean CC1=CN(C(=O)NC1=O)[C@H]2C[C@@H]([C@H](O2)CO[P@]…

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.