KpATCC43816 Protein target profile

hydroxyethylthiazole kinase

Accession: VK055_4975

Gene: AIK83501.1 thiM 3D evidence: AlphaFold DB model + ColabFold model Metabolism 2 reactions UniProt A0AB74GUG2
Length 231
Pocket druggability (P2Rank · AlphaFold DB model) 0.625
Metabolic reactions 2
Chokepoint Yes
Direct ligand evidence 0 60 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
No hit
Gut microbiome similarity
3.4% 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
95.27 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) 0.625
Structure A0AB74GUG2
Pocket Pocket 1
Druggability (FPocket) 0.369
Structure A0AB74GUG2
Pocket Pocket 2
ColabFold model
P2Rank 0.724 · Pocket 1
FPocket 0.328 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 163 / 4744 genomes with a hit
Prevalence 3.4%

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 Thiamine metabolism, no isoenzyme backup detected, no human homolog detected.

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

2 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.

MTNDVVQTFTANVLLGVGASPAMVIDPREAAQFAAIADALLINVGTLTEDRAVAMRAAVEHARQAGKPWTLDPVAVGALTVRTAFCHELLALQPAAIRGNASEILALAGMSAGGRGVDTTDTAAAALPAAQALARRLATVVAVTGEVDYVTDGERVLSVAGGNPLMTRVVGTGCALSAVVAASAALPGDRLENVAAACGLMKQAGEIAARQGGPGSFIPAFLDALYQEVQG

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 6 GO

Subcellular localization

Localization
Unknown

Enzyme Commission (EC)

1

Gene Ontology (GO)

6
  • GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
  • GO:0009228 The chemical reactions and pathways resulting in the formation of thiamine (vitamin B1), a water soluble vitamin present in fresh vegetables and meats, especially liver.
  • GO:0000287 Binding to a magnesium (Mg) ion.
  • GO:0004417 Catalysis of the reaction: 5-(2-hydroxyethyl)-4-methylthiazole + ATP = 4-methyl-5-(2-phosphoethyl)-thiazole + ADP + 2 H+.
  • GO:0009229 The chemical reactions and pathways resulting in the formation of thiamine diphosphate, a derivative of thiamine (vitamin B1) which acts as a coenzyme in a range of processes including the Krebs cycle.
  • GO:0036172 A process that generates thiamine (vitamin B1) from derivatives of it without de novo synthesis.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

23 records
Show feature table
Start End DB Term Name
1 230 Gene3D G3DSA:3.40.1190.20 -
1 230 InterPro IPR029056 Ribokinase-like
140 157 PRINTS PR01099 Hydroxyethylthiazole kinase family signature
140 157 InterPro IPR000417 Hydroxyethylthiazole kinase
40 48 PRINTS PR01099 Hydroxyethylthiazole kinase family signature
40 48 InterPro IPR000417 Hydroxyethylthiazole kinase
66 83 PRINTS PR01099 Hydroxyethylthiazole kinase family signature
66 83 InterPro IPR000417 Hydroxyethylthiazole kinase
96 110 PRINTS PR01099 Hydroxyethylthiazole kinase family signature
96 110 InterPro IPR000417 Hydroxyethylthiazole kinase
9 30 PRINTS PR01099 Hydroxyethylthiazole kinase family signature
9 30 InterPro IPR000417 Hydroxyethylthiazole kinase
1 227 Pfam PF02110 Hydroxyethylthiazole kinase family
1 227 InterPro IPR000417 Hydroxyethylthiazole kinase
1 230 PIRSF PIRSF000513 Thz_kinase
1 230 InterPro IPR000417 Hydroxyethylthiazole kinase
1 226 CDD cd01170 THZ_kinase
1 226 InterPro IPR000417 Hydroxyethylthiazole kinase
1 231 FunFam G3DSA:3.40.1190.20:FF:000015 Hydroxyethylthiazole kinase
1 230 Hamap MF_00228 Hydroxyethylthiazole kinase [thiM].
1 227 NCBIfam TIGR00694 hydroxyethylthiazole kinase
1 228 SUPERFAMILY SSF53613 Ribokinase-like
1 228 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.

Download VMD script Full viewer

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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
0.625
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Surrounding area
Pocket 2 P2Rank #2
0.583
Likely same site as FPocket 2 4.4 Å 20 shared residues 91% of smaller site
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Surrounding area
Pocket 3 P2Rank #3
0.057
Show in viewer
Surrounding area

Binding pockets · FPocket

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

Pocket 1 FPocket #2
0.369
Likely same site as P2Rank 2 4.4 Å 20 shared residues 91% 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_A0AB74GUG2
AlphaFold DB full sequence Viewing
ColabFold VK055_4975
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.

60 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 10 records from similar proteins
Structural ligands 10 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
3NM PDB via homolog 267.2 Da · LogP 0.80 · TPSA 117.0 Open detail RCSB PDB
51F PDB via homolog Detail RCSB PDB
ACP PDB via homolog Detail RCSB PDB
IFP PDB via homolog Detail RCSB PDB
KP6 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
3NM RCSB PDB Q6FV03 267.2 Da LogP 0.80 TPSA 117.0 ✓ Ro5 ✓ Clean Cc1c(sc(n1)C(=O)O)CCOP(=O)(O)O
51F RCSB PDB Q6GEY3 126.2 Da LogP 0.18 TPSA 38.0 ✓ Ro5 ✓ Clean Cc1nccn1CCO
ACP RCSB PDB Q6FV03 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)…
IFP RCSB PDB Q6FV03 175.1 Da LogP 1.57 TPSA 48.6 ✓ Ro5 ✓ Clean C=C1C=NC(=NC1=N)C(F)(F)F
KP6 RCSB PDB Q6GEY3 154.2 Da LogP 0.57 TPSA 38.0 ✓ Ro5 ✓ Clean Cc1c(c(n(n1)C)C)CCO
POP RCSB PDB Q6FV03 176.0 Da LogP -2.08 TPSA 129.9 ✓ Ro5 ✓ Clean O[P@@](=O)([O-])O[P@@](=O)(O)[O-]
SO2 RCSB PDB P39593 64.1 Da LogP -0.67 TPSA 34.1 ✓ Ro5 ✓ Clean O=S=O
TPS RCSB PDB Q6FV03 345.3 Da LogP 0.72 TPSA 122.4 ✓ Ro5 ✓ Clean Cc1c(sc[n+]1Cc2cnc(nc2N)C)CCOP(=O)(O)O
TZE RCSB PDB P39593 143.2 Da LogP 0.99 TPSA 33.1 ✓ Ro5 ✓ Clean Cc1c(scn1)CCO
TZP RCSB PDB P39593 223.2 Da LogP 1.10 TPSA 79.7 ✓ Ro5 ✓ Clean Cc1c(scn1)CCOP(=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.