KpKP13 Protein target profile

hypothetical protein

Accession: KP13_04789

Gene: AHE43752.1 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A2J2GEI6
Length 420
Pocket druggability (P2Rank · AlphaFold DB model) 0.914
Direct ligand evidence 0 55 total records
Functional annotation 0 EC 6 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
No hit
Gut microbiome similarity
0.1% 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
87.77 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) 0.914
Structure A0A2J2GEI6
Pocket Pocket 1
Druggability (FPocket) 0.961
Structure A0A2J2GEI6
Pocket Pocket 1
ColabFold model
P2Rank 0.859 · Pocket 1
FPocket 0.551 · Pocket 2
Core conservation Accessory gene
Roary accessory
CoreCruncher accessory
Gut microbiome 3 / 4744 genomes with a hit
Prevalence 0.1%

Sequence

Primary amino-acid sequence viewer.

MDGLISKLKLSKTESDKLKALRQIVRERTRDVFQEARQVAIDVRKQALTLESVRLKLEKTNVRYLSPEERADLARLIFEMEDEARDDFIKFQPRFWTQGSFQYDTLNRPFHPGQEMDIDDGTYMPMTVFESEPSIGHTLLLLLVDASLKSLEAENDGWVFEEKNTCGRIKIYREKTHIDVPMYAIPKEQFQKKQTAADSAHLIKSDSVFESLALNRGGREAYAVESDKVNLALREGIRRWSVSDPKIVEDWFNESCKRIGGHLRSVCRFMKAWRDAQWEVGGPSSISLMTAVVNILDRESHNGSDLTGTMKLIARLLPEEFNRGVESPDDTDEKPLFPAESNHNVHQRAIVETMESLYGILLAAEQSESREEALRKINEAFGKRVTNALLITSSAAAPAFLNAPSKEPASKPINKTMVSG

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

6 GO

Subcellular localization

Localization
Cytoplasmic

Gene Ontology (GO)

6
  • GO:0140701 Catalysis of the reaction: ATP + GTP = 2 diphosphate + cyclic G-P(3'-5')A-P(3'-5') (cyclic 3',3' GAMP).
  • GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
  • GO:0005525 Binding to GTP, guanosine triphosphate.
  • GO:0046872 Binding to a metal ion.
  • GO:0051607 Reactions triggered in response to the presence of a virus that act to protect the cell or organism.
  • GO:0009117 The chemical reactions and pathways involving a nucleotide, a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the glycose moiety; may be mono-, di- or triphosphate; this definition includes cyclic nucleotides (nucleoside cyclic phosphates).

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

2 records
Show feature table
Start End DB Term Name
2 385 NCBIfam NF041078 CBASS cGAMP synthase
2 385 InterPro IPR047805 Cyclic GMP-AMP synthase

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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Drag to rotate — click the view, then scroll to zoom.

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
0.914
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Surrounding area
Pocket 2 P2Rank #2
0.747
Likely same site as FPocket 1 1.4 Å 14 shared residues 93% of smaller site
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Surrounding area
Pocket 3 P2Rank #3
0.071
Show in viewer
Surrounding area
Pocket 4 P2Rank #4
0.06
Show in viewer
Surrounding area
Pocket 5 P2Rank #5
0.034
Show in viewer
Surrounding area

Binding pockets · FPocket

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

Pocket 1 FPocket #1
0.961
Likely same site as P2Rank 2 1.4 Å 14 shared residues 93% 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_A0A2J2GEI6
AlphaFold DB full sequence Viewing
ColabFold KP13_04789
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.

55 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 5 records from similar proteins
Structural ligands 5 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
38V PDB via homolog 850.4 Da · LogP -3.04 · TPSA 444.7 Open detail RCSB PDB
3AT PDB via homolog Detail RCSB PDB
G2P PDB via homolog Detail RCSB PDB
GH3 PDB via homolog Detail RCSB PDB
TLL 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
38V RCSB PDB Q9KVG7 850.4 Da LogP -3.04 TPSA 444.7 3 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…
3AT RCSB PDB Q9KVG7 491.2 Da LogP -0.60 TPSA 258.9 2 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3[C@@H](C[C@H](O3)CO[P@]…
G2P RCSB PDB Q9KVG7 521.2 Da LogP -2.22 TPSA 289.9 3 viol. ✓ Clean c1nc2c(n1[C@H]3[C@@H]([C@@H]([C@H](O3)CO[P@](=O…
GH3 RCSB PDB Q6XGD8 507.2 Da LogP -1.31 TPSA 278.9 3 viol. ✓ Clean c1nc2c(n1[C@H]3[C@@H](C[C@H](O3)CO[P@](=O)(O)O[…
TLL RCSB PDB Q9KVG7 588.6 Da LogP -0.91 TPSA 269.2 3 viol. ✓ Clean CN1[C@H](CNC2=C1C(=O)N=C(N2)N)CNc3ccc(cc3)C(=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.