KpATCC43816 Protein target profile

potG

Accession: VK055_1603

Gene: AIK80223.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism Not in network UniProt A0A0H3GQU4
Length 377
Pocket druggability (P2Rank · AlphaFold DB model) 0.234
Direct ligand evidence 0 56 total records
Functional annotation 1 EC 8 GO
Target summary

Target candidate with partial support; inspect missing evidence before prioritizing.

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 (%)
34.742 Lower values reduce human off-target concern.
Human E-value
3.4299999999999995e-24
Gut microbiome similarity
3.0% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
Y
DEG identity (%)
47.881 Higher values support similarity to known essential genes.
DEG E-value
3.21e-69 Smaller values mean stronger essential-gene similarity.

Structure confidence

ColabFold pLDDT
91.18 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) 0.234
Structure A0A0H3GQU4
Pocket Pocket 1
Druggability (FPocket) 0.293
Structure A0A0H3GQU4
Pocket Pocket 3
ColabFold model
P2Rank 0.282 · Pocket 1
FPocket 0.239 · Pocket 4
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 144 / 4744 genomes with a hit
Prevalence 3.0%

Metabolic context

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

This protein is not associated with the imported metabolic network for this genome.

Browse the genome's metabolic network

Imported from KpATCC43816.sbml · 2026-07-09

Sequence

Primary amino-acid sequence viewer.

MNDVMPRPQAKAPKALTPLLEIRNLTKSFDGQHAVDDVSLTIYKGEIFALLGASGCGKSTLLRMLAGFEQPTAGQIMLDGVDLARVPPYQRPINMMFQSYALFPHMTVEQNIAFGLKQDRLPKAEITARVQEMLALVHMQEFAKRKPHQLSGGQRQRVALARSLAKRPKLLLLDEPMGALDKKLRDRMQLEVVDILERVGVTCVMVTHDQEEAMTMAGRIAIMNRGKFVQIGEPEEIYEHPTTRYSAEFIGSVNVFEGLVKERLEDGLVLSSPGLMHPLKVDPDASVVDNVPVWVALRPEKIMLCDEPPADGYNFAVGEVIHIAYLGDLSIYHVRLQSGQMISAQLQNEHRHRKGTPTWGDEVRLCWDADSCVVLTV

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 8 GO

Subcellular localization

Localization
CytoplasmicMembrane

Enzyme Commission (EC)

1

Gene Ontology (GO)

8
  • GO:0043190 A complex for the transport of metabolites into and out of the cell, typically comprised of four domains; two membrane-associated domains and two ATP-binding domains at the intracellular face of the membrane, that form a central pore through the plasma membrane. Each of the four core domains may be encoded as a separate polypeptide or the domains can be fused in any one of a number of ways into multidomain polypeptides. In Bacteria and Archaebacteria, ABC transporters also include substrate binding proteins to bind substrate external to the cytoplasm and deliver it to the transporter.
  • GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
  • GO:0015417 Catalysis of the reaction: ATP + H2O + polyamine(out) = ADP + phosphate + polyamine(in).
  • GO:0055085 The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other.
  • GO:0022857 Enables the transfer of a substance, usually a specific substance or a group of related substances, from one side of a membrane to the other.
  • GO:0016887 Catalysis of the reaction: ATP + H2O = ADP + H+ phosphate. ATP hydrolysis is used in some reactions as an energy source, for example to catalyze a reaction or drive transport against a concentration gradient.
  • GO:0015846 The directed movement of polyamines, organic compounds containing two or more amino groups, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
  • GO:0015847 The directed movement of putrescine into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. Putrescine is 1,4-diaminobutane, the polyamine formed by decarboxylation of ornithine and the metabolic precursor of spermidine and spermine.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

22 records
Show feature table
Start End DB Term Name
150 164 ProSitePatterns PS00211 ABC transporters family signature.
150 164 InterPro IPR017871 ABC transporter-like, conserved site
295 375 Pfam PF08402 TOBE domain
295 375 InterPro IPR013611 Transport-associated OB, type 2
19 237 Gene3D G3DSA:3.40.50.300 -
19 237 InterPro IPR027417 P-loop containing nucleoside triphosphate hydrolase
44 227 SMART SM00382 AAA_5
44 227 InterPro IPR003593 AAA+ ATPase domain
36 177 Pfam PF00005 ABC transporter
36 177 InterPro IPR003439 ABC transporter-like, ATP-binding domain
252 375 SUPERFAMILY SSF50331 MOP-like
252 375 InterPro IPR008995 Molybdate/tungstate binding, C-terminal
18 375 PANTHER PTHR42781 SPERMIDINE/PUTRESCINE IMPORT ATP-BINDING PROTEIN POTA
20 250 ProSiteProfiles PS50893 ATP-binding cassette, ABC transporter-type domain profile.
20 250 InterPro IPR003439 ABC transporter-like, ATP-binding domain
17 237 FunFam G3DSA:3.40.50.300:FF:000133 Spermidine/putrescine import ATP-binding protein PotA
238 320 Gene3D G3DSA:2.40.50.100 -
19 257 SUPERFAMILY SSF52540 P-loop containing nucleoside triphosphate hydrolases
19 257 InterPro IPR027417 P-loop containing nucleoside triphosphate hydrolase
50 375 NCBIfam TIGR01187 polyamine ABC transporter ATP-binding protein
50 375 InterPro IPR005893 Spermidine/putrescine import ATP-binding protein PotA-like
234 324 FunFam G3DSA:2.40.50.100:FF:000034 Spermidine/putrescine import ATP-binding protein PotA

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 · P2Rank

Druggability (P2Rank): high ≥ 0.5 · medium 0.2–0.49 · low < 0.2

Pocket 1 P2Rank #1
0.234
Likely same site as FPocket 5 3.1 Å 12 shared residues 92% of smaller site
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Surrounding area
Pocket 2 P2Rank #2
0.171
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Surrounding area
Pocket 3 P2Rank #3
0.003
Show in viewer
Surrounding area

Binding pockets · FPocket

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

Pocket 1 FPocket #3
0.293
Show in viewer
Surrounding area
Pocket 2 FPocket #5
0.291 Unusual size
Likely same site as P2Rank 1 3.1 Å 12 shared residues 92% 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_A0A0H3GQU4
AlphaFold DB full sequence Viewing
ColabFold VK055_1603
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.

56 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 6 records from similar proteins
Structural ligands 6 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
2BA PDB via homolog 658.4 Da · LogP -1.63 · TPSA 309.7 Open detail RCSB PDB
AGS PDB via homolog Detail RCSB PDB
ANP PDB via homolog Detail RCSB PDB
BET PDB via homolog Detail RCSB PDB
NH4 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
2BA RCSB PDB Q9KIF7 658.4 Da LogP -1.63 TPSA 309.7 3 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@H]4[C@H](O3)C…
AGS RCSB PDB P30750 523.2 Da LogP -1.51 TPSA 262.1 3 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…
ANP RCSB PDB Q97UY8 506.2 Da LogP -2.06 TPSA 281.9 3 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…
BET RCSB PDB Q9KIF7 118.2 Da LogP -0.22 TPSA 37.3 ✓ Ro5 ✓ Clean C[N+](C)(C)CC(=O)O
NH4 RCSB PDB Q9YGA6 18.0 Da LogP 0.38 TPSA 36.5 ✓ Ro5 ✓ Clean [NH4+]
POP RCSB PDB O57933 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.

Cross-references

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