KpATCC43816 Protein target profile

ABC transporter family protein

Accession: VK055_5123

Gene: ybtP AIK83649.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism Not in network UniProt A0A0H3GV18
Length 570
Pocket druggability (P2Rank · AlphaFold DB model) 0.216
Direct ligand evidence 0 54 total records
Functional annotation 0 EC 6 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 (%)
56.164 Lower values reduce human off-target concern.
Human E-value
1.69e-19
Gut microbiome similarity
0.1% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
N
DEG identity (%)
50.0 Higher values support similarity to known essential genes.

Structure confidence

ColabFold pLDDT
88.58 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) 0.216
Structure A0A0H3GV18
Pocket Pocket 1
Druggability (FPocket) 0.764
Structure A0A0H3GV18
Pocket Pocket 2
ColabFold model
P2Rank 0.36 · Pocket 1
FPocket 0.493 · Pocket 7
Core conservation Accessory gene
Roary accessory
CoreCruncher accessory
Gut microbiome 7 / 4744 genomes with a hit
Prevalence 0.1%

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.

MALAGLAALTSLGALLFLAWSLRDIRATPDAIPAWPLGGVIGCVVLTFVLRLQAFNTSHYAAFHLENILRSRLARKALQLPPGVLQQMGSGSVAKVMLDDVKSLHIFVADSTPLYARAIIMPLATIVILFWLDWRLAIATLGVLAFGSVVLVLARQRSEDMAQRYHKAREQVSAAVIEFVQAMPVVRTFDSGSTSFLRYQRALEEWVDVLKTWYRKAGFSARFSFSILNPLPTLFVLIWSGYGLLHYGSFDFIAWVAVLLLGSGMAEAVMPMMMLNNLVAQTRLSIQRIYQVLAMPELSLPQSDQQPQEASITFEQVSFHYPQARTGAALQEVSFHVPAGQIVALVGPSGAGKSTVARLLLRYADPDKGHIRIGGVDLRDMQTDTLMKQLSFVFQDNFLFADTIANNIRLGAPDTPLEAVIAAARVAQAHDFISALPEGYNTRVGERGVFLSGGQRQRITIARALLQDRPILVLDEATAFADPENEAALIKALAAAMRGRTVIMVAHRLSMVTQADVILLFSDGQLREMGNHTQLLAQGGLYQRLWQHYQQAQHWVPGGTQEEVVENERQ

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

6 GO

Subcellular localization

Localization
CytoplasmicMembrane

Gene Ontology (GO)

6
  • GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
  • GO:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.
  • GO:0055085 The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other.
  • 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: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:0005886 The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

46 records
Show feature table
Start End DB Term Name
138 154 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
1 281 ProSiteProfiles PS50929 ABC transporter integral membrane type-1 fused domain profile.
1 281 InterPro IPR011527 ABC transporter type 1, transmembrane domain
18 21 Phobius SIGNAL_PEPTIDE_C_REGION C-terminal region of a signal peptide.
31 50 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
221 243 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
41 547 PANTHER PTHR24222 ABC TRANSPORTER B FAMILY
41 547 InterPro IPR039421 Type 1 protein exporter
241 251 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
2 17 Phobius SIGNAL_PEPTIDE_H_REGION Hydrophobic region of a signal peptide.
253 275 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
303 556 FunFam G3DSA:3.40.50.300:FF:000221 Multidrug ABC transporter ATP-binding protein
51 113 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
2 301 SUPERFAMILY SSF90123 ABC transporter transmembrane region
2 301 InterPro IPR036640 ABC transporter type 1, transmembrane domain superfamily
1 298 Gene3D G3DSA:1.20.1560.10 ABC transporter type 1, transmembrane domain
1 298 InterPro IPR036640 ABC transporter type 1, transmembrane domain superfamily
339 533 SMART SM00382 AAA_5
339 533 InterPro IPR003593 AAA+ ATPase domain
276 570 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
113 132 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
307 549 SUPERFAMILY SSF52540 P-loop containing nucleoside triphosphate hydrolases
307 549 InterPro IPR027417 P-loop containing nucleoside triphosphate hydrolase
31 50 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
133 137 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
1 21 Phobius SIGNAL_PEPTIDE Signal peptide region
303 558 Gene3D G3DSA:3.40.50.300 -
303 558 InterPro IPR027417 P-loop containing nucleoside triphosphate hydrolase
1 27 SignalP_EUK SignalP-TM SignalP-TM
39 248 Pfam PF00664 ABC transporter transmembrane region
39 248 InterPro IPR011527 ABC transporter type 1, transmembrane domain
155 218 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
312 548 ProSiteProfiles PS50893 ATP-binding cassette, ABC transporter-type domain profile.
312 548 InterPro IPR003439 ABC transporter-like, ATP-binding domain
114 132 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
219 240 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
451 465 ProSitePatterns PS00211 ABC transporters family signature.
451 465 InterPro IPR017871 ABC transporter-like, conserved site
22 30 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
1 289 CDD cd07346 ABC_6TM_exporters
252 275 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
1 1 Phobius SIGNAL_PEPTIDE_N_REGION N-terminal region of a signal peptide.
2 21 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
330 479 Pfam PF00005 ABC transporter
330 479 InterPro IPR003439 ABC transporter-like, ATP-binding domain
136 154 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.

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
0.216
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Surrounding area
Pocket 2 P2Rank #2
0.163
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Surrounding area
Pocket 3 P2Rank #3
0.093
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Surrounding area
Pocket 4 P2Rank #4
0.08
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Surrounding area
Pocket 5 P2Rank #5
0.036
Likely same site as FPocket 2 3.1 Å 10 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 #2
0.764
Likely same site as P2Rank 5 3.1 Å 10 shared residues 100% of smaller site
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Surrounding area
Pocket 2 FPocket #5
0.358
Show in viewer
Surrounding area
Pocket 3 FPocket #10
0.238
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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_A0A0H3GV18
AlphaFold DB full sequence Viewing
ColabFold VK055_5123
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
0SA PDB via homolog 512.7 Da · LogP -0.13 · TPSA 169.3 Open detail RCSB PDB
AGS PDB via homolog Detail RCSB PDB
ANP PDB via homolog Detail RCSB PDB
O34 PDB via homolog Detail RCSB PDB
ZINC100053481 ZINC proposed compound · Tanimoto 1.000 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
0SA RCSB PDB P34712 512.7 Da LogP -0.13 TPSA 169.3 3 viol. ✓ Clean CCCCCCCCCCCS[C@H]1[C@@H]([C@H]([C@@H]([C@H](O1)…
AGS RCSB PDB Q9WYC4 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 P63359 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)…
O34 RCSB PDB Q1RAG2 481.7 Da LogP 2.66 TPSA 114.5 ✓ Ro5 ✓ Clean C[C@@]1(CSC(=N1)C(C)(C)[C@@H]([C@@H]2CS[C@@H](N…

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.