KpATCC43816 Protein target profile

1-phosphofructokinase

Accession: VK055_4923

Gene: pfkB AIK83449.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism 1 reaction UniProt A0A0H3GVH8
Length 312
Pocket druggability (P2Rank · AlphaFold DB model) 0.938
Metabolic reactions 1
Chokepoint No
Direct ligand evidence 0 55 total records
Functional annotation 0 EC 8 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
2.6% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

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

Structure confidence

ColabFold pLDDT
94.81 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) 0.938
Structure A0A0H3GVH8
Pocket Pocket 1
Druggability (FPocket) 0.238
Structure A0A0H3GVH8
Pocket Pocket 2
ColabFold model
P2Rank 0.939 · Pocket 1
FPocket 0.087 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 125 / 4744 genomes with a hit
Prevalence 2.6%

Metabolic context

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

Explore metabolic network

Metabolic context: more central than 88.4% of genes in this genome, no human homolog detected.

Relative network centrality 88.4% more central than 88.4% 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 reaction

1 reaction 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.

MSRRVATITLNPAYDLVGFTPEIERGEVNLVRTTGLHAAGKGINVAKVLKDLGIDVTVGGFLGKDNQDGFQQLFSELGIANRFQVVQGRTRINVKLTEKDGEVTDFNFSGFEVTPGDWERFVNDSLSWLGQFDMVCVSGSLPSGVSPEAFTDWMTRLRSQCPCIIFDSSREALVAGLKAAPWLVKPNRRELEIWAGRKLPEMKDVIDAAHALREQGIAHVVISLGEEGALWVNASGEWIAKPPSVEVVSTVGAGDSMVGGLIYGLLMRESSEHTLRLATAVAALAVSQSNVGITDRTQLAAMMARVDLQPFN

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

8 GO

Subcellular localization

Localization
Cytoplasmic

Gene Ontology (GO)

8
  • GO:0008662 Catalysis of the reaction: ATP + D-fructose 1-phosphate = ADP + D-fructose 1,6-bisphosphate.
  • GO:0016773 Catalysis of the transfer of a phosphorus-containing group from one compound (donor) to an alcohol group (acceptor).
  • GO:0016301 Catalysis of the transfer of a phosphate group, usually from ATP, to a substrate molecule.
  • GO:0005975 The chemical reactions and pathways involving carbohydrates, any of a group of organic compounds based of the general formula Cx(H2O)y.
  • GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
  • GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
  • GO:0016052 The chemical reactions and pathways resulting in the breakdown of carbohydrates, any of a group of organic compounds based of the general formula Cx(H2O)y.
  • GO:0044281 The chemical reactions and pathways involving small molecules, any low molecular weight, monomeric, non-encoded molecule.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

20 records
Show feature table
Start End DB Term Name
4 276 CDD cd01164 FruK_PfkB_like
4 276 InterPro IPR017583 Tagatose/fructose phosphokinase
39 63 ProSitePatterns PS00583 pfkB family of carbohydrate kinases signature 1.
39 63 InterPro IPR002173 Carbohydrate/purine kinase, PfkB, conserved site
4 311 FunFam G3DSA:3.40.1190.20:FF:000001 Phosphofructokinase
5 308 NCBIfam TIGR03828 1-phosphofructokinase
5 308 InterPro IPR022463 Fructose 1-phosphate kinase
2 311 PIRSF PIRSF000535 1PFK/6PFK/LacC
2 311 InterPro IPR017583 Tagatose/fructose phosphokinase
4 310 PANTHER PTHR46566 1-PHOSPHOFRUCTOKINASE-RELATED
2 310 Gene3D G3DSA:3.40.1190.20 -
2 310 InterPro IPR029056 Ribokinase-like
5 308 NCBIfam TIGR03168 hexose kinase, FruK/PfkB/LacC family
5 308 InterPro IPR017583 Tagatose/fructose phosphokinase
14 293 Pfam PF00294 pfkB family carbohydrate kinase
14 293 InterPro IPR011611 Carbohydrate kinase PfkB
249 262 ProSitePatterns PS00584 pfkB family of carbohydrate kinases signature 2.
249 262 InterPro IPR002173 Carbohydrate/purine kinase, PfkB, conserved site
7 291 SUPERFAMILY SSF53613 Ribokinase-like
7 291 InterPro IPR029056 Ribokinase-like

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
0.938
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Surrounding area
Pocket 2 P2Rank #2
0.06
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Surrounding area
Pocket 3 P2Rank #3
0.029
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Surrounding area
Pocket 4 P2Rank #4
0.006
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Surrounding area
Pocket 5 P2Rank #5
0.003
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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 #2
0.238 Unusual size
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_A0A0H3GVH8
AlphaFold DB full sequence Viewing
ColabFold VK055_4923
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.

55 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 5 records from similar proteins
Structural ligands 5 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
A12 PDB via homolog 425.2 Da · LogP -1.64 · TPSA 223.4 Open detail RCSB PDB
ACP PDB via homolog Detail RCSB PDB
AN2 PDB via homolog Detail RCSB PDB
POP PDB via homolog Detail RCSB PDB
RIB 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
A12 RCSB PDB Q9H477 425.2 Da LogP -1.64 TPSA 223.4 2 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…
ACP RCSB PDB A0A3S7X0F5 505.2 Da LogP -1.52 TPSA 269.9 3 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…
AN2 RCSB PDB Q9H477 426.2 Da LogP -1.78 TPSA 238.4 2 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…
POP RCSB PDB P06999 176.0 Da LogP -2.08 TPSA 129.9 ✓ Ro5 ✓ Clean O[P@@](=O)([O-])O[P@@](=O)(O)[O-]
RIB RCSB PDB A1A6H3 150.1 Da LogP -2.58 TPSA 90.2 ✓ Ro5 ✓ Clean C([C@@H]1[C@H]([C@H]([C@H](O1)O)O)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.