KpATCC43816 Protein target profile

ABC-2 type transporter family protein

Accession: VK055_1711

Gene: AIK80331.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism Not in network UniProt A0A0H3GKB5
Length 368
Pocket druggability (P2Rank · AlphaFold DB model) 0.076
Functional annotation 0 EC 4 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
2.2% 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
87.99 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) 0.076
Structure A0A0H3GKB5
Pocket Pocket 1
Druggability (FPocket) 0.787
Structure A0A0H3GKB5
Pocket Pocket 5
ColabFold model
P2Rank 0.18 · Pocket 1
FPocket 0.574 · Pocket 17
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 103 / 4744 genomes with a hit
Prevalence 2.2%

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.

MFHRLWTLIRKELQSLLREPQTRAILIMPVLIQVLLFPFAATLEVTNATIAIYNEDSGRHAVELTQRFARAKAFTHVLLLQSPQAIQPTIDEQKALLVVRFPADFSRNLDNYQTAPLQLLLDGRNSNSAQIAANYLQQIVKNYQQELLEGKAKPNNSELVVRNWYNPNLDYKWFVVPSLIAMITTIGVMIVTSLSVAREREQGTLDQLLVSPLATWQIFVGKAVPALIVATLQATIVLAIGIWAYQIPFAGSLLLFYFTMVIYGLSLVGFGLLISSLCATQQQAFIGVFVFMMPAILLSGYVSPVENMPQWLQDLTWINPIRHFTDITKQIYLKDASLEIVWGSLWPLLVIAATTGSAAYAMFRRKIA

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

4 GO

Subcellular localization

Localization
CytoplasmicMembrane

Gene Ontology (GO)

4
  • 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:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.
  • GO:0140359 Primary active transporter characterized by two nucleotide-binding domains and two transmembrane domains. Uses the energy generated from ATP hydrolysis to drive the transport of a substance across a membrane.
  • GO:0055085 The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

31 records
Show feature table
Start End DB Term Name
364 368 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
341 363 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
25 359 Pfam PF12698 ABC-2 family transporter protein
25 359 InterPro IPR013525 ABC-2 type transporter, transmembrane domain
24 46 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
284 303 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
290 309 PRINTS PR00164 ABC-2 type transport system membrane protein signature
290 309 InterPro IPR000412 ABC-2 transporter
310 329 PRINTS PR00164 ABC-2 type transport system membrane protein signature
310 329 InterPro IPR000412 ABC-2 transporter
253 277 PRINTS PR00164 ABC-2 type transport system membrane protein signature
253 277 InterPro IPR000412 ABC-2 transporter
218 243 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
40 168 Gene3D G3DSA:3.40.1710.10 -
278 283 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
173 195 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
244 254 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
4 364 PANTHER PTHR30294 MEMBRANE COMPONENT OF ABC TRANSPORTER YHHJ-RELATED
284 302 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
340 363 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
255 277 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
198 217 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
223 245 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
303 339 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
1 20 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
173 197 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
255 277 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
21 41 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
129 366 ProSiteProfiles PS51012 ABC transporter integral membrane type-2 domain profile.
129 366 InterPro IPR047817 ABC-2 type transporter, transmembrane domain, bacterial-type
42 172 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.

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
0.076
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Surrounding area
Pocket 2 P2Rank #2
0.066
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Surrounding area
Pocket 3 P2Rank #3
0.054
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Surrounding area
Pocket 4 P2Rank #4
0.027
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Surrounding area
Pocket 5 P2Rank #5
0.019
Likely same site as FPocket 28 3.0 Å 7 shared residues 100% of smaller site
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Surrounding area

Binding pockets · FPocket

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

Pocket 1 FPocket #5
0.787
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Surrounding area
Pocket 2 FPocket #10
0.355
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Surrounding area
Pocket 3 FPocket #28
0.352
Likely same site as P2Rank 5 3.0 Å 7 shared residues 100% of smaller site
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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_A0A0H3GKB5
AlphaFold DB full sequence Viewing
ColabFold VK055_1711
ColabFold full sequence Loaded

Cross-references

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