Protein target profile

VK055_0081

glucose-6-phosphate dehydrogenase

Genome: KpATCC43816 Gene: AIK78709.1 zwf 3D evidence: AlphaFold DB model + ColabFold model Metabolism 3 reactions UniProt A0A0H3GQ55
Length 491
Pocket druggability 0.696
Metabolic reactions 3
Chokepoint Yes
Direct ligand evidence 0 52 total records
Functional annotation 1 EC 6 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
Hit
Human identity (%)
38.346 Lower values reduce human off-target concern.
Human E-value
1.11e-88
Gut microbiome similarity
2.5% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

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

Localization

Localization
Cytoplasmic

Structure confidence

ColabFold pLDDT
93.49 0-100 confidence; >70 supports local structural interpretation.

Binding-site evidence

AlphaFold DB / UniProt model

The selected pocket score is the FPocket value used for ranking after applying the curated structure priority. It estimates small-molecule pocket quality; it is not experimental binding evidence. The 3D viewer may show a different loaded structure, so visible pockets can differ.

FPocket 0.696
Structure A0A0H3GQ55
Pocket Pocket 3
P2Rank 0.538
Structure A0A0H3GQ55
Pocket Pocket 1
ColabFold model
FPocket 0.79 · Pocket 39
P2Rank 0.386 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 118 / 4744 genomes with a hit
Prevalence 2.5%

Cross-references

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

Metabolic context

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

Explore metabolic network

Attractive metabolic target: catalyzes a producing chokepoint reaction in Glutathione metabolism, no isoenzyme backup detected.

Relative network centrality 0.0% more central than 0.0% of genes in this genome
Chokepoint Chokepoint gene
Catalyzed reactions

3 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.

MAVTQTAQACDLVIFGAKGDLARRKLLPSLYQLEKAGQIHADTRIIGVGRADWDKAAYTKVVREALETFMKEKIDEGLWDTLSGRLEFCNLDVNDTSGFTRLGEMLDQKNRVTINYFAMPPSTFGAICKGLGEAKLNAKPARVVMEKPLGTSLETSREINDQVGEFFEECQVYRIDHYLGKETVLNLLALRFANSLFVNNWDCRTIDHVEITVAEEVGIEGRWGYFDQAGQMRDMIQNHLLQILCMIAMSPPSDLSADSIRDEKVKVLKSLRRIDRSNVREKTVRGQYTAGFAQGKKVPGYLEEEGANKTSNTETFVAIRVDIDNWRWAGVPFYLRTGKRLPTKCSEVVVYFKTPELNLFKETWQELPQNKLTIRLQPDEGVDIQVLNKVPGLDHKHNLQITKLDLSYSETFNQTHLADAYERLLLETMRGIQALFVRRDEVEEAWKWVDSITEAWAADRDAPKPYQAGTWGPVASVAMITRDGRSWNEFE

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 6 GO

Enzyme Commission (EC)

1

Gene Ontology (GO)

6
  • GO:0016614 Catalysis of an oxidation-reduction (redox) reaction in which a CH-OH group act as a hydrogen or electron donor and reduces a hydrogen or electron acceptor.
  • GO:0004345 Catalysis of the reaction: D-glucose 6-phosphate + NADP+ = D-glucono-1,5-lactone 6-phosphate + NADPH + H+.
  • GO:0050661 Binding to nicotinamide-adenine dinucleotide phosphate, a coenzyme involved in many redox and biosynthetic reactions; binding may be to either the oxidized form, NADP+, or the reduced form, NADPH.
  • GO:0006006 The chemical reactions and pathways involving glucose, the aldohexose gluco-hexose. D-glucose is dextrorotatory and is sometimes known as dextrose; it is an important source of energy for living organisms and is found free as well as combined in homo- and hetero-oligosaccharides and polysaccharides.
  • GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
  • GO:0009051 The branch of the pentose-phosphate shunt which involves the oxidation of glucose 6-P and produces ribulose 5-P, reduced NADP+ and carbon dioxide (CO2).

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

30 records
Show feature table
Start End DB Term Name
9 489 NCBIfam TIGR00871 glucose-6-phosphate dehydrogenase
9 489 InterPro IPR001282 Glucose-6-phosphate dehydrogenase
176 182 ProSitePatterns PS00069 Glucose-6-phosphate dehydrogenase active site.
176 182 InterPro IPR019796 Glucose-6-phosphate dehydrogenase, active site
176 479 Gene3D G3DSA:3.30.360.10 Dihydrodipicolinate Reductase; domain 2
1 491 PIRSF PIRSF000110 G6PD
1 491 InterPro IPR001282 Glucose-6-phosphate dehydrogenase
218 235 PRINTS PR00079 Glucose-6-phosphate dehydrogenase signature
218 235 InterPro IPR001282 Glucose-6-phosphate dehydrogenase
166 194 PRINTS PR00079 Glucose-6-phosphate dehydrogenase signature
166 194 InterPro IPR001282 Glucose-6-phosphate dehydrogenase
142 155 PRINTS PR00079 Glucose-6-phosphate dehydrogenase signature
142 155 InterPro IPR001282 Glucose-6-phosphate dehydrogenase
327 353 PRINTS PR00079 Glucose-6-phosphate dehydrogenase signature
327 353 InterPro IPR001282 Glucose-6-phosphate dehydrogenase
236 252 PRINTS PR00079 Glucose-6-phosphate dehydrogenase signature
236 252 InterPro IPR001282 Glucose-6-phosphate dehydrogenase
13 186 Pfam PF00479 Glucose-6-phosphate dehydrogenase, NAD binding domain
13 186 InterPro IPR022674 Glucose-6-phosphate dehydrogenase, NAD-binding
5 486 PANTHER PTHR23429 GLUCOSE-6-PHOSPHATE 1-DEHYDROGENASE G6PD
5 486 InterPro IPR001282 Glucose-6-phosphate dehydrogenase
9 489 Hamap MF_00966 Glucose-6-phosphate 1-dehydrogenase [zwf].
12 437 Gene3D G3DSA:3.40.50.720 -
12 198 FunFam G3DSA:3.40.50.720:FF:000079 Glucose-6-phosphate 1-dehydrogenase
188 488 Pfam PF02781 Glucose-6-phosphate dehydrogenase, C-terminal domain
188 488 InterPro IPR022675 Glucose-6-phosphate dehydrogenase, C-terminal
4 189 SUPERFAMILY SSF51735 NAD(P)-binding Rossmann-fold domains
4 189 InterPro IPR036291 NAD(P)-binding domain superfamily
176 488 SUPERFAMILY SSF55347 Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain
176 479 FunFam G3DSA:3.30.360.10:FF:000011 Glucose-6-phosphate 1-dehydrogenase

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 · FPocket

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

Site 1 FPocket #3
0.696
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Surrounding area
Site 2 FPocket #46
0.517
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Surrounding area
Site 3 FPocket #28
0.412
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Surrounding area
Site 4 FPocket #17
0.379
Likely same site as P2Rank 3 3.0 Å 8 shared residues 89% of smaller site
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Surrounding area

Binding pockets · P2Rank

Probability: high ≥ 0.5 · medium 0.2–0.49 · low < 0.2

Site 1 P2Rank #1
0.538
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Surrounding area
Site 2 P2Rank #2
0.063
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Surrounding area
Site 3 P2Rank #3
0.053
Likely same site as FPocket 17 3.0 Å 8 shared residues 89% of smaller site
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Surrounding area
Site 4 P2Rank #4
0.048
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Surrounding area
Site 5 P2Rank #5
0.044
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Surrounding area
Residue sets
UniProt: Active site:239-239 Proton acceptor
UniProt: Binding site:147-147
UniProt: Binding site:177-177
UniProt: Binding site:181-181
UniProt: Binding site:215-215
UniProt: Binding site:234-234
UniProt: Binding site:339-339
UniProt: Binding site:344-344
UniProt: Binding site:50-50
UniProt: Binding site:92-93
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_A0A0H3GQ55
AlphaFold DB full sequence Viewing
ColabFold VK055_0081
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.

52 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 2 records from similar proteins
Structural ligands 2 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
BG6 PDB via homolog 260.1 Da · LogP -3.10 · TPSA 156.9 Open detail RCSB PDB
GOA PDB via homolog Detail RCSB PDB
ZINC100351935 ZINC proposed compound · Tanimoto 1.000 Detail ZINC
ZINC1529564 ZINC proposed compound · Tanimoto 1.000 Detail ZINC
ZINC1532533 ZINC proposed compound · Tanimoto 1.000 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
BG6 RCSB PDB P48828 260.1 Da LogP -3.10 TPSA 156.9 1 viol. ✓ Clean C([C@@H]1[C@H]([C@@H]([C@H]([C@@H](O1)O)O)O)O)O…
GOA RCSB PDB P11413 76.1 Da LogP -0.94 TPSA 57.5 ✓ Ro5 ✓ Clean C(C(=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.