KpKP13 Protein target profile

Inosine-guanosine kinase

Accession: KP13_03615

Gene: AHE45957.1 gsk 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3GP56
Length 434
Pocket druggability (P2Rank · AlphaFold DB model) 0.982
Direct ligand evidence 0 51 total records
Functional annotation 1 EC 7 GO
Target summary

Strong target candidate with converging metabolic, structural and chemical evidence.

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
2.6% 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
94.09 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) 0.982
Structure A0A0H3GP56
Pocket Pocket 1
Druggability (FPocket) 0.71
Structure A0A0H3GP56
Pocket Pocket 29
ColabFold model
P2Rank 0.97 · Pocket 1
FPocket 0.703 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 123 / 4744 genomes with a hit
Prevalence 2.6%

Cross-references

External database identifiers for this protein, its structures, ligands, and metabolic reactions.

Sequence

Primary amino-acid sequence viewer.

MKFPGKRKSKHYFPVNARDPLLQQIQPENESSVSWVVGIDQTLVDIEAKVDEAFIVRYGLSAGHSLVIEDDVAEALYQELVRNNLITHQFAGGTIGNTMHNYSVLADDRSVLLGVMCSNIEIGGYAYRYLCNTSSRTDLNYLQGVDGAIGRCFTLIGDSGERTFAISPGHMNKLRPESIPEAVIAGASALVLTSYLVRCKPGEPMPDATMKAIEYAKKHDVPVVLTLGTKYVIADNPAWWQEFLQEHVSILAMNEEEGEALTGFADPLSAANKALDWVDLVLCTAGPAGLYMAGFTEEEAKRKTQHPLLPGAIPEFNQFEFSRAMRHQDCVNPLRIYSHIAPYMGGPEKIMNTNGAGDGALAALLHDITANNYHRNNVPNSSKHKCKWLTYSSLAQVCKYANRVSYQVLNQHSPRLTRGLPEREDSLEEAYWDR

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:0008906 Catalysis of the reaction: ATP + inosine = ADP + IMP.
  • GO:0016301 Catalysis of the transfer of a phosphate group, usually from ATP, to a substrate molecule.
  • GO:0006166 Any process which produces a purine nucleoside from derivatives of it, without de novo synthesis.
  • GO:0106366 Catalysis of the reaction: ATP + guanosine = ADP + GMP.
  • GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
  • GO:0032263 Any process which produces guanosine monophosphate from derivatives of it, without de novo synthesis.
  • GO:0032264 Any process which produces inosine monophosphate from derivatives of it, without de novo synthesis.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

14 records
Show feature table
Start End DB Term Name
1 434 Hamap MF_02246 Guanosine-inosine kinase [gsk].
1 434 InterPro IPR046405 Guanosine-inosine kinase
352 365 ProSitePatterns PS00584 pfkB family of carbohydrate kinases signature 2.
352 365 InterPro IPR002173 Carbohydrate/purine kinase, PfkB, conserved site
36 416 SUPERFAMILY SSF53613 Ribokinase-like
36 416 InterPro IPR029056 Ribokinase-like
146 296 Pfam PF00294 pfkB family carbohydrate kinase
146 296 InterPro IPR011611 Carbohydrate kinase PfkB
179 197 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
1 178 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
198 434 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
35 417 Gene3D G3DSA:3.40.1190.20 -
35 417 InterPro IPR029056 Ribokinase-like
34 299 PANTHER PTHR43320 SUGAR KINASE

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
0.982
Likely same site as FPocket 1 2.1 Å 42 shared residues 95% of smaller site
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Surrounding area
Pocket 2 P2Rank #2
0.337
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Surrounding area
Pocket 3 P2Rank #3
0.124
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Surrounding area
Pocket 4 P2Rank #4
0.07
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Surrounding area
Pocket 5 P2Rank #5
0.019
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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 #29
0.71
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Surrounding area
Pocket 2 FPocket #1
0.644 Unusual size
Likely same site as P2Rank 1 2.1 Å 42 shared residues 95% of smaller site
Show in viewer
Surrounding area
Residue sets
UniProt: Binding site:198-198
UniProt: Binding site:284-289
UniProt: Binding site:357-357
UniProt: Binding site:40-45
UniProt: Binding site:402-402
UniProt: Binding site:93-97
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_A0A0H3GP56
AlphaFold DB full sequence Viewing
ColabFold KP13_03615
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.

51 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 1 records from similar proteins
Structural ligands 1 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
G4P PDB via homolog 603.2 Da · LogP -2.22 · TPSA 345.6 Open detail RCSB PDB
ZINC104869865 ZINC proposed compound · Tanimoto 0.836 Detail ZINC
ZINC12504289 ZINC proposed compound · Tanimoto 0.836 Detail ZINC
ZINC34541308 ZINC proposed compound · Tanimoto 0.836 Detail ZINC
ZINC35000839 ZINC proposed compound · Tanimoto 0.836 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
G4P RCSB PDB P0AEW6 603.2 Da LogP -2.22 TPSA 345.6 3 viol. ✓ Clean c1nc2c(n1[C@H]3[C@@H]([C@@H]([C@H](O3)CO[P@](=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.