Protein target profile

VK055_3495

pantetheine-phosphate adenylyltransferase

Genome: KpATCC43816 Gene: AIK82051.1 coaD 3D evidence: Experimental + ColabFold model Metabolism 1 reaction UniProt Q9XC89
Length 159
Pocket druggability 0.457
Metabolic reactions 1
Chokepoint Yes
Direct ligand evidence 0 72 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
5.0% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
Y
DEG identity (%)
86.164 Higher values support similarity to known essential genes.
DEG E-value
1.1100000000000001e-103 Smaller values mean stronger essential-gene similarity.

Localization

Localization
Cytoplasmic

Structure confidence

ColabFold pLDDT
96.3 0-100 confidence; >70 supports local structural interpretation.

Binding-site evidence

PDB experimental structure

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 0.457
Structure 8I8I
Pocket Pocket 1
P2Rank 0.615
Structure 8I8I
Pocket Pocket 1
ColabFold model
FPocket 0.271 · Pocket 2
P2Rank 0.827 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 237 / 4744 genomes with a hit
Prevalence 5.0%

Cross-references

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

Structure

Metabolic context

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

Explore metabolic network

Attractive metabolic target: catalyzes a producing & consuming chokepoint reaction in Pantothenate and CoA biosynthesis, no isoenzyme backup detected, more central than 95.2% of genes in this genome, no human homolog detected.

Relative network centrality 95.2% more central than 95.2% of genes in this genome
Chokepoint Chokepoint gene
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.

MSTKAIYPGTFDPITNGHIDIVTRAASMFDKVVLAIAASPSKKPMFSLDERIALAEQATAHLVNVEVIGFSDLMANFARAQQANILIRGLRAVADFEYEMQLAHMNRHLMPTLESVFLMPCKEWSFISSSLVKEVARHQGDVSHFLPANVHQALLNKLK

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:0004595 Catalysis of the reaction: ATP + pantetheine 4'-phosphate = 3'-dephospho-CoA + diphosphate.
  • GO:0009058 A cellular process consisting of the biochemical pathways by which a living organism synthesizes chemical substances. This typically represents the energy-requiring part of metabolism in which simpler substances are transformed into more complex ones.
  • GO:0003824 Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
  • GO:0015937 The chemical reactions and pathways resulting in the formation of coenzyme A, 3'-phosphoadenosine-(5')diphospho(4')pantatheine, an acyl carrier in many acylation and acyl-transfer reactions in which the intermediate is a thiol ester.
  • GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
  • GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

25 records
Show feature table
Start End DB Term Name
5 157 NCBIfam TIGR01510 pantetheine-phosphate adenylyltransferase
5 157 InterPro IPR001980 Phosphopantetheine adenylyltransferase
3 159 Hamap MF_00151 Phosphopantetheine adenylyltransferase [coaD].
3 159 InterPro IPR001980 Phosphopantetheine adenylyltransferase
1 159 FunFam G3DSA:3.40.50.620:FF:000012 Phosphopantetheine adenylyltransferase
6 134 Pfam PF01467 Cytidylyltransferase-like
6 134 InterPro IPR004821 Cytidyltransferase-like domain
1 159 Gene3D G3DSA:3.40.50.620 HUPs
1 159 InterPro IPR014729 Rossmann-like alpha/beta/alpha sandwich fold
3 156 SUPERFAMILY SSF52374 Nucleotidylyl transferase
3 157 PANTHER PTHR21342 PHOSPHOPANTETHEINE ADENYLYLTRANSFERASE
5 63 NCBIfam TIGR00125 cytidyltransferase-like domain
5 63 InterPro IPR004821 Cytidyltransferase-like domain
4 156 CDD cd02163 PPAT
4 156 InterPro IPR001980 Phosphopantetheine adenylyltransferase
3 21 PRINTS PR01020 Lipopolysaccharide core biosynthesis protein signature
3 21 InterPro IPR001980 Phosphopantetheine adenylyltransferase
113 135 PRINTS PR01020 Lipopolysaccharide core biosynthesis protein signature
113 135 InterPro IPR001980 Phosphopantetheine adenylyltransferase
86 102 PRINTS PR01020 Lipopolysaccharide core biosynthesis protein signature
86 102 InterPro IPR001980 Phosphopantetheine adenylyltransferase
21 42 PRINTS PR01020 Lipopolysaccharide core biosynthesis protein signature
21 42 InterPro IPR001980 Phosphopantetheine adenylyltransferase
50 74 PRINTS PR01020 Lipopolysaccharide core biosynthesis protein signature
50 74 InterPro IPR001980 Phosphopantetheine adenylyltransferase

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 · FPocket

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

Site 1 FPocket #1
0.457
Likely same site as P2Rank 1 1.4 Å 17 shared residues 94% 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
0.615
Likely same site as FPocket 1 1.4 Å 17 shared residues 94% of smaller site
Show in viewer
Surrounding area
Site 2 P2Rank #2
0.008
Show in viewer
Surrounding area
All structural evidence 1 experimental · 1 predicted

Structural evidence

1 + 1

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
PDB 8I8I
X-ray 2.59 Å A,B,C
100.0% 1-159
Viewing
ColabFold VK055_3495
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.

72 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 22 records from similar proteins
Structural ligands 22 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
ASC PDB via homolog 176.1 Da · LogP -1.41 · TPSA 107.2 Open detail RCSB PDB
COD PDB via homolog Detail RCSB PDB
CW4 PDB via homolog Detail RCSB PDB
CWA PDB via homolog Detail RCSB PDB
CWG 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
ASC RCSB PDB A0A059ZFC5 176.1 Da LogP -1.41 TPSA 107.2 ✓ Ro5 ✓ Clean C([C@@H]([C@@H]1C(=C(C(=O)O1)O)O)O)O
COD RCSB PDB P0A6I6 687.6 Da LogP -1.78 TPSA 300.0 3 viol. ✓ Clean CC(C)(CO[P@@](=O)(O)O[P@@](=O)(O)OC[C@@H]1[C@H]…
CW4 RCSB PDB P0A6I6 268.3 Da LogP 3.06 TPSA 44.1 ✓ Ro5 ✓ Clean CC1([C@@H](c2ccccc2C(=O)O1)n3cncc3C=C)C
CWA RCSB PDB P0A6I6 292.3 Da LogP 3.36 TPSA 44.1 ✓ Ro5 ✓ Clean CC1([C@@H](c2ccccc2C(=O)O1)n3cncc3C(F)F)C
CWG RCSB PDB P0A6I6 248.7 Da LogP 3.42 TPSA 35.0 ✓ Ro5 ✓ Clean Cc1c(c(nnc1c2ccc(cc2)Cl)OC)C
CWJ RCSB PDB P0A6I6 161.2 Da LogP 2.48 TPSA 25.0 ✓ Ro5 ✓ Clean Cc1cc2cc(ccc2[nH]1)OC
CWM RCSB PDB P0A6I6 148.2 Da LogP 1.58 TPSA 48.9 ✓ Ro5 ✓ Clean Cc1[nH]c2c(n1)cccc2O
CWP RCSB PDB P0A6I6 256.3 Da LogP 1.92 TPSA 71.4 ✓ Ro5 ✓ Clean Cc1ccc2c(n1)[nH]c(n2)NCc3cc(nn3C)C
EX7 RCSB PDB P0A6I6 272.7 Da LogP 3.71 TPSA 48.9 ✓ Ro5 ✓ Clean c1cc(cc(c1)Cl)CCc2[nH]c3c(n2)cccc3O
EXD RCSB PDB P0A6I6 202.1 Da LogP 2.29 TPSA 48.9 ✓ Ro5 ✓ Clean c1cc2c(c(c1)O)[nH]c(n2)C(F)(F)F
EXG RCSB PDB P0A6I6 209.3 Da LogP 2.48 TPSA 30.7 ✓ Ro5 ✓ Clean c1ccc(cc1)Cn2cnc3c2cccn3
EXJ RCSB PDB P0A6I6 328.8 Da LogP 3.13 TPSA 96.0 ✓ Ro5 ✓ Clean CC1=Nc2nc(nn2C(=O)C1)NC(CC#N)c3cccc(c3)Cl
EXP RCSB PDB P0A6I6 334.2 Da LogP 2.79 TPSA 72.2 ✓ Ro5 ✓ Clean CC1=Nc2nc(nn2C(=O)C1)NCc3cccc(c3)Br
EXS RCSB PDB P0A6I6 307.4 Da LogP 0.31 TPSA 118.5 ✓ Ro5 ✓ Clean CC(C)(CO)[C@H](C(=O)NCCc1[nH]c2c(n1)cccc2O)O
EXV RCSB PDB P0A6I6 322.4 Da LogP 4.02 TPSA 86.2 ✓ Ro5 ✓ Clean c1cc(cc(c1)C(=O)O)[C@H]2CCC[C@@H]2c3[nH]c4c(n3)…
F0V RCSB PDB P0A6I6 364.9 Da LogP 4.15 TPSA 57.7 ✓ Ro5 ✓ Clean Cc1ccc(cc1Cl)Nc2cc(nc3[n+]2nc([nH]3)Cc4ccccc4)C
F0Y RCSB PDB P0A6I6 432.5 Da LogP 4.35 TPSA 106.9 ✓ Ro5 ✓ Clean Cc1ccc2c(n1)[nH]c(n2)NC(CC#N)c3cccc(c3)CC4CCN(C…
F14 RCSB PDB P0A6I6 391.4 Da LogP 4.39 TPSA 90.6 ✓ Ro5 ✓ Clean CC1=Nc2nc(nn2C(=O)C1)N[C@H](C)c3cccc(c3)Oc4ccc(…
F1D RCSB PDB P0A6I6 451.5 Da LogP 3.09 TPSA 134.7 ✓ Ro5 ✓ Clean CC1=Nc2nc(nn2C(=O)C1)NC(CC#N)c3cccc(c3)OC4CCN(C…
F1V RCSB PDB P0A6I6 274.4 Da LogP 2.88 TPSA 54.1 ✓ Ro5 ✓ Clean CC(C)(C)C(=O)NCCc1c[nH]c2c1cc(cc2)OC
F6D RCSB PDB P0A6I6 477.0 Da LogP 4.27 TPSA 126.2 ✓ Ro5 ✓ Clean Cc1cc(n2c(n1)nc(n2)NC(CC#N)c3cccc(c3)Cl)NCC(c4c…
POP RCSB PDB A0A059ZFC5 176.0 Da LogP -2.08 TPSA 129.9 ✓ Ro5 ✓ Clean O[P@@](=O)([O-])O[P@@](=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.