Protein target profile

VK055_3970

dihydroxyacetone kinase

Genome: KpATCC43816 Gene: dhaK2 AIK82518.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism 1 reaction UniProt A0A0H3GVW0
Length 549
Pocket druggability 0.994
Metabolic reactions 1
Chokepoint No
Direct ligand evidence 0 1 total records
Functional annotation 1 EC 5 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
Hit
Human identity (%)
50.303 Lower values reduce human off-target concern.
Human E-value
6.68e-42
Gut microbiome similarity
1.3% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

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

Localization

Localization
Unknown

Structure confidence

ColabFold pLDDT
96.2 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 0.994
Structure A0A0H3GVW0
Pocket Pocket 2
P2Rank 0.99
Structure A0A0H3GVW0
Pocket Pocket 1
ColabFold model
FPocket 0.982 · Pocket 5
P2Rank 0.988 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 62 / 4744 genomes with a hit
Prevalence 1.3%

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

Metabolic context: more central than 92.7% of genes in this genome.

Relative network centrality 92.7% more central than 92.7% of genes in this genome
Chokepoint Not a chokepoint
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.

MSQFFFNQRASLVNDVIEGTIIASPWNNLARLESDPAIRVVVRRDLNKNNVAVISGGGAGHEPAHVGFIGKGMLTAAVCGDLFASPSVDAVLTAIQAVTGEAGCLLIVKNYTGDRLNFGLAAEKARRLGYNVEMLIVGDDISLPDNKQPRGIAGTILVHKVAGYFAERGFNLATVLREAQYAASHTASIGVALASCHLPQEADSAPRHQAGHAELGMGIHGEPGASTIATQNSAEIVNLMVEKLTAALPETGRLAVMLNNLGGVSVAEMAILTRELANTPLQARIDWLIGPASLVTALDMKGFSLTAIVLEESIEKALLSDVETASWQKPVQPRTINVVPSTLDSARVDFTPSANPQVGDYVAQVTGALIDLEEHLNALDAKVGDGDTGSTFAAGAREIAERLERQQLPLNDLPTLFALIGERLTVVMGGSSGVLMSIFFTAAGQKLGQGASVAEALNAGLGQMKFYGGADEGDRTMIDALQPALAALLAEPDNLQAAFAAAQAGADRTCQSSKAGAGRASYLNSESLLGNMDPGAHAVAMVFKALAER

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 5 GO

Enzyme Commission (EC)

1

Gene Ontology (GO)

5
  • GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
  • GO:0006071 The chemical reactions and pathways involving glycerol, 1,2,3-propanetriol, a sweet, hygroscopic, viscous liquid, widely distributed in nature as a constituent of many lipids.
  • GO:0004371 Catalysis of the reaction: ATP + glycerone = ADP + glycerone phosphate + 2 H+.
  • GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
  • GO:0019563 The chemical reactions and pathways resulting in the breakdown of glycerol, 1,2,3-propanetriol, a sweet, hygroscopic, viscous liquid, widely distributed in nature as a constituent of many lipids.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

21 records
Show feature table
Start End DB Term Name
13 185 Gene3D G3DSA:3.40.50.10440 Dihydroxyacetone kinase; domain 1
356 549 FunFam G3DSA:1.25.40.340:FF:000002 Dihydroxyacetone kinase, L subunit
8 548 PANTHER PTHR28629 TRIOKINASE/FMN CYCLASE
8 327 ProSiteProfiles PS51481 DhaK domain profile.
8 327 InterPro IPR004006 DhaK domain
382 548 SMART SM01120 Dak2_2
382 548 InterPro IPR004007 DhaL domain
32 324 Pfam PF02733 Dak1 domain
32 324 InterPro IPR004006 DhaK domain
382 548 Pfam PF02734 DAK2 domain
357 548 SUPERFAMILY SSF101473 DhaL-like
357 548 InterPro IPR036117 DhaL domain superfamily
3 547 NCBIfam TIGR02361 glycerone kinase
3 547 InterPro IPR012734 Dihydroxyacetone kinase
13 184 FunFam G3DSA:3.40.50.10440:FF:000001 Dihydroxyacetone kinase, DhaK subunit
356 548 ProSiteProfiles PS51480 DhaL domain profile.
356 548 InterPro IPR004007 DhaL domain
352 548 Gene3D G3DSA:1.25.40.340 -
352 548 InterPro IPR036117 DhaL domain superfamily
2 330 SUPERFAMILY SSF82549 DAK1/DegV-like
186 328 Gene3D G3DSA:3.30.1180.20 Dihydroxyacetone kinase; domain 2

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 #2
0.994
Likely same site as P2Rank 1 1.2 Å 31 shared residues 100% of smaller site
Unusual size
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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
0.99
Likely same site as FPocket 2 1.2 Å 31 shared residues 100% of smaller site
Show in viewer
Surrounding area
Site 2 P2Rank #2
0.875
Show in viewer
Surrounding area
Site 3 P2Rank #3
0.159
Show in viewer
Surrounding area
Site 4 P2Rank #4
0.137
Show in viewer
Surrounding area
Site 5 P2Rank #5
0.086
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Surrounding area
Residue sets
UniProt: Active site:220-220 Tele-hemiaminal-histidine intermediate
UniProt: Binding site:109-109
UniProt: Binding site:114-114
UniProt: Binding site:58-61
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_A0A0H3GVW0
AlphaFold DB full sequence Viewing
ColabFold VK055_3970
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.

1 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 0 similarity-based ZINC candidates
Best available ligand signal
2HA PDB via homolog 90.1 Da · LogP -1.46 · TPSA 57.5 Open 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
2HA RCSB PDB P76015 90.1 Da LogP -1.46 TPSA 57.5 ✓ Ro5 ✓ Clean C(C(=O)CO)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.