Protein target profile

VK055_1764

galactose-1-phosphate uridylyltransferase

Genome: KpATCC43816 Gene: galT AIK80384.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism 1 reaction UniProt A0A0H3GQ36
Length 348
Pocket druggability 0.868
Metabolic reactions 1
Chokepoint No
Direct ligand evidence 0 54 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 (%)
60.345 Lower values reduce human off-target concern.
Human E-value
2.39e-18
Gut microbiome similarity
3.3% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

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

Localization

Localization
Unknown

Structure confidence

ColabFold pLDDT
95.9 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 0.868
Structure A0A0H3GQ36
Pocket Pocket 3
P2Rank 0.88
Structure A0A0H3GQ36
Pocket Pocket 1
ColabFold model
FPocket 0.748 · Pocket 3
P2Rank 0.832 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 156 / 4744 genomes with a hit
Prevalence 3.3%

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 92.4% of genes in this genome.

Relative network centrality 92.4% more central than 92.4% 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.

MSVFNPVDHPHRRYNPLTGQWILVSPHRAKRPWQGAQETPAKQTLPAHDPDCFLCPGNTRVTGDTNPNYTGTYVFTNDFAALMTDTPDAPESDDPLMRCQSARGTSRVICFSPDHSKTLPELSLEALEDVVKTWQEQTADLGKSYPWVQVFENKGAAMGCSNPHPHGQVWANSFLPNEAEREDRLQKEYYAAQGQPMLLDYVQRELADGSRTVVDTEHWLAVVPYWAAWPFETLLLPKAHVQRITDLTDAQRSDLALALKKLTSRYDNLFQCSFPYSMGWHGAPFNDEDHNHWQLHAHFYPPLLRSATVRKFMVGYEMLAETQRDLTAEQAAERLRAVSDVHFRESGV

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:0008270 Binding to a zinc ion (Zn).
  • GO:0008108 Catalysis of the reaction: alpha-D-galactose 1-phosphate + UDP-D-glucose = alpha-D-glucose 1-phosphate + UDP-D-galactose.
  • GO:0006012 The chemical reactions and pathways involving galactose, the aldohexose galacto-hexose. D-galactose is widely distributed in combined form in plants, animals and microorganisms as a constituent of oligo- and polysaccharides; it also occurs in galactolipids and as its glucoside in lactose and melibiose.
  • GO:0033499 The chemical reactions and pathways resulting in the breakdown of galactose, via the intermediate UDP-galactose.
  • GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

24 records
Show feature table
Start End DB Term Name
35 175 FunFam G3DSA:3.30.428.10:FF:000002 Galactose-1-phosphate uridylyltransferase
11 338 CDD cd00608 GalT
11 338 InterPro IPR001937 Galactose-1-phosphate uridyl transferase, class I
179 345 SUPERFAMILY SSF54197 HIT-like
179 345 InterPro IPR036265 HIT-like superfamily
4 345 PANTHER PTHR11943 GALACTOSE-1-PHOSPHATE URIDYLYLTRANSFERASE
4 345 InterPro IPR001937 Galactose-1-phosphate uridyl transferase, class I
151 168 ProSitePatterns PS00117 Galactose-1-phosphate uridyl transferase family 1 active site signature.
151 168 InterPro IPR019779 Galactose-1-phosphate uridyl transferase, class I His-active site
35 175 Gene3D G3DSA:3.30.428.10 -
35 175 InterPro IPR036265 HIT-like superfamily
1 341 PIRSF PIRSF000808 GalT
1 341 InterPro IPR001937 Galactose-1-phosphate uridyl transferase, class I
4 177 SUPERFAMILY SSF54197 HIT-like
4 177 InterPro IPR036265 HIT-like superfamily
5 176 Pfam PF01087 Galactose-1-phosphate uridyl transferase, N-terminal domain
5 176 InterPro IPR005849 Galactose-1-phosphate uridyl transferase, N-terminal
176 347 Gene3D G3DSA:3.30.428.10 -
176 347 InterPro IPR036265 HIT-like superfamily
2 347 NCBIfam TIGR00209 galactose-1-phosphate uridylyltransferase
2 347 InterPro IPR001937 Galactose-1-phosphate uridyl transferase, class I
176 348 FunFam G3DSA:3.30.428.10:FF:000001 Galactose-1-phosphate uridylyltransferase
183 345 Pfam PF02744 Galactose-1-phosphate uridyl transferase, C-terminal domain
183 345 InterPro IPR005850 Galactose-1-phosphate uridyl transferase, C-terminal

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
0.868
Likely same site as P2Rank 3 2.1 Å 19 shared residues 79% of smaller site
Unusual size
Show in viewer
Surrounding area

Binding pockets · P2Rank

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

Site 1 P2Rank #1
0.88
Show in viewer
Surrounding area
Site 2 P2Rank #2
0.506
Show in viewer
Surrounding area
Site 3 P2Rank #3
0.47
Likely same site as FPocket 3 2.1 Å 19 shared residues 79% of smaller site
Show in viewer
Surrounding area
Site 4 P2Rank #4
0.058
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Surrounding area
Site 5 P2Rank #5
0.04
Show in viewer
Surrounding area
Residue sets
UniProt: Active site:166-166 Tele-UMP-histidine intermediate
UniProt: Binding site:115-115
UniProt: Binding site:153-153 in other chain
UniProt: Binding site:159-161 in other chain
UniProt: Binding site:164-164
UniProt: Binding site:168-168 in other chain
UniProt: Binding site:182-182
UniProt: Binding site:28-31
UniProt: Binding site:281-281
UniProt: Binding site:296-296
UniProt: Binding site:298-298
UniProt: Binding site:311-312
UniProt: Binding site:316-317
UniProt: Binding site:323-323 in other chain
UniProt: Binding site:52-52
UniProt: Binding site:55-55
UniProt: Binding site:61-61 in other chain
UniProt: Binding site:77-78 in other chain
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_A0A0H3GQ36
AlphaFold DB full sequence Viewing
ColabFold VK055_1764
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.

54 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 4 records from similar proteins
Structural ligands 4 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
ADQ PDB via homolog 589.3 Da · LogP -3.92 · TPSA 311.7 Open detail RCSB PDB
GDU PDB via homolog Detail RCSB PDB
H2U PDB via homolog Detail RCSB PDB
UPG PDB via homolog Detail RCSB PDB
ZINC12959005 ZINC proposed compound · Tanimoto 0.729 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
ADQ RCSB PDB Q9FK51 589.3 Da LogP -3.92 TPSA 311.7 3 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…
GDU RCSB PDB P09148 566.3 Da LogP -4.79 TPSA 297.0 3 viol. ✓ Clean C1=CN(C(=O)NC1=O)[C@H]2[C@@H]([C@@H]([C@H](O2)C…
H2U RCSB PDB P07902-2 326.2 Da LogP -2.52 TPSA 165.9 ✓ Ro5 ✓ Clean C1CN(C(=O)NC1=O)[C@H]2[C@@H]([C@@H]([C@H](O2)CO…
UPG RCSB PDB P09148 566.3 Da LogP -4.79 TPSA 297.0 3 viol. ✓ Clean C1=CN(C(=O)NC1=O)[C@H]2[C@@H]([C@@H]([C@H](O2)C…

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.