KpATCC43816 Protein target profile

essential cell division protein FtsK

Accession: VK055_1563

Gene: AIK80183.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism Not in network UniProt A0A0H3GUY9
Length 1410
Pocket druggability (P2Rank · AlphaFold DB model) 0.141
Direct ligand evidence 0 51 total records
Functional annotation 0 EC 7 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
No hit
Gut microbiome similarity
1.7% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

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

Structure confidence

ColabFold pLDDT
63.14 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) 0.141
Structure A0A0H3GUY9
Pocket Pocket 1
Druggability (FPocket) 0.849
Structure A0A0H3GUY9
Pocket Pocket 63
ColabFold model
P2Rank 0.192 · Pocket 1
FPocket 0.851 · Pocket 48
Core conservation Accessory gene
Roary core
CoreCruncher accessory
Gut microbiome 80 / 4744 genomes with a hit
Prevalence 1.7%

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.

MSQEYTEDKEVKLTKLSSGRRLLEAMLILCSLFAIWLMAALLSFNPSDPSWSQTAWHEPIHNLGGAPGAWLADTLFFIFGVMAYTIPVIIIGGCWFAWRHQENDEYIDYFAVSLRLIGALALILTSCGLAAINADDIWYFASGGVIGSLLSTTLQPLLHSSGGTIALLCIWAAGLTLFTGWSWVSIAEKLGGGILSVLTFASNRTRRDDTWVDEGEYEDDEEEYDDEEAVRPQESRRARILRSALARRKRLAEKFTNPMGRKTDAALFSGKRMDDGEEVVQYSASGAPVAADDVLFSGASAARPAEDDVLFSGASAVRPGDFDPYDPLLNGHSIAEPVSAAAAATAAPQAWAESPVGHHGAAPAYQPEASYPPQQAYQPEPAPFQQAAYQPPAGQTAPQAYQPEPAPYQQPVYDPRAGQPAPQAYQPEPAPYQQPAYDPRAGQPAPQVYQPEPAPYQQPAYDPHAGQPAPQAYQPEPAPFQQPAYDPYAGQPAPQAYQPEPAPYQQPAYDPYAGQPAPQTYQQPAYDPNAGQPAPQTYQQPAYDPHAGQPAPQPYQPQSAPVPPPEPEPEVVQEEVKRPPLYYFEEVEEKRARERELLASWYQPIPEPESPIATKPLTPPTTASKPPVETTVVSAVAAGVHQATAASGGAAAATSSTAASAAATPLFSPASSGPRVQVKEGIGPKLPRPNRVRVPTRRELASYGIKLPSQREAEQRARQAERDPHYDDELLSDEEADAMEQDELARQFAATQQQRYGHRWEDDNATDDDEADAAAEAELARQFAATQQQRYATEQPPGANPFSPADYEFSPMKTLVNDGPSEPLFTPTPEVQPQQPAQRYQQPAAAPQQGYQPAQHQPIHHQPVPPQPQSYPTASQPVQPQQPVAPQGHQPAAPAPQESLIHPLLMRNGDSRPLQKPTTPLPSLDLLTPPPSEVEPVDTFALEQMARLVEARLADFRIKADVVNYSPGPVITRFELNLAPGVKAARISNLSRDLARSLSTVAVRVVEVIPGKPYVGLELPNKKRQTVYLREVLDNAKFRDNPSPLTVVLGKDIAGDPVVADLAKMPHLLVAGTTGSGKSVGVNAMILSMLYKAQPEDVRFIMIDPKMLELSVYEGIPHLLTEVVTDMKDAANALRWSVNEMERRYKLMSALGVRNLAGYNEKIAEAARMGRPIPDPYWKPGDSMDAVHPVLEKLPYIVVLVDEFADLMMTVGKKVEELIARLAQKARAAGIHLVLATQRPSVDVITGLIKANIPTRIAFTVSSKIDSRTILDQGGAESLLGMGDMLYSGPNSTTPVRVHGAFVRDQEVHAVVQDWKARGRPQYVDGITSDSESEGGGGGFDGGEELDPLFDQAVNFVTEKRKASISGVQRQFRIGYNRAARIIEQMEAQGIVSEQGHNGNREVLAPPPFE

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

7 GO

Subcellular localization

Localization
CytoplasmicMembrane

Gene Ontology (GO)

7
  • GO:0005524 Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
  • GO:0000166 Binding to a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
  • GO:0003677 Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
  • GO:0005886 The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
  • GO:0051301 The process resulting in division and partitioning of components of a cell to form more cells; may or may not be accompanied by the physical separation of a cell into distinct, individually membrane-bounded daughter cells.
  • GO:0071236 Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an antibiotic stimulus. An antibiotic is a chemical substance produced by a microorganism which has the capacity to inhibit the growth of or to kill other microorganisms.
  • GO:0007059 The process in which genetic material, in the form of chromosomes, is organized into specific structures and then physically separated and apportioned to two or more sets. In eukaryotes, chromosome segregation begins with the condensation of chromosomes, includes chromosome separation, and ends when chromosomes have completed movement to the spindle poles.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

61 records
Show feature table
Start End DB Term Name
20 191 Pfam PF13491 4TM region of DNA translocase FtsK/SpoIIIE
20 191 InterPro IPR025199 DNA translocase FtsK, 4TM region
921 1025 Gene3D G3DSA:3.30.980.40 -
547 569 MobiDBLite mobidb-lite consensus disorder prediction
921 1025 FunFam G3DSA:3.30.980.40:FF:000001 DNA translocase FtsK
921 1021 Pfam PF17854 FtsK alpha domain
921 1021 InterPro IPR041027 FtsK alpha domain
132 136 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
1026 1328 Gene3D G3DSA:3.40.50.300 -
1026 1328 InterPro IPR027417 P-loop containing nucleoside triphosphate hydrolase
1 1409 PANTHER PTHR22683 SPORULATION PROTEIN RELATED
1343 1408 SMART SM00843 FtsK_gamma_2
1343 1408 InterPro IPR018541 FtsK gamma domain
648 671 MobiDBLite mobidb-lite consensus disorder prediction
1067 1259 CDD cd01127 TrwB_TraG_TraD_VirD4
165 187 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
711 729 MobiDBLite mobidb-lite consensus disorder prediction
21 43 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
606 628 MobiDBLite mobidb-lite consensus disorder prediction
1003 1315 SUPERFAMILY SSF52540 P-loop containing nucleoside triphosphate hydrolases
1003 1315 InterPro IPR027417 P-loop containing nucleoside triphosphate hydrolase
165 184 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
75 98 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
45 74 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
1029 1242 Pfam PF01580 FtsK/SpoIIIE family
1029 1242 InterPro IPR002543 FtsK domain
516 543 MobiDBLite mobidb-lite consensus disorder prediction
137 158 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
435 456 PRINTS PR01217 Proline rich extensin signature
524 549 PRINTS PR01217 Proline rich extensin signature
420 432 PRINTS PR01217 Proline rich extensin signature
491 508 PRINTS PR01217 Proline rich extensin signature
391 407 PRINTS PR01217 Proline rich extensin signature
371 383 PRINTS PR01217 Proline rich extensin signature
464 480 PRINTS PR01217 Proline rich extensin signature
797 897 CDD cd22541 SP5_N
645 921 MobiDBLite mobidb-lite consensus disorder prediction
782 796 MobiDBLite mobidb-lite consensus disorder prediction
110 131 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
859 873 MobiDBLite mobidb-lite consensus disorder prediction
1343 1407 SUPERFAMILY SSF46785 Winged helix DNA-binding domain
1343 1407 InterPro IPR036390 Winged helix DNA-binding domain superfamily
351 580 MobiDBLite mobidb-lite consensus disorder prediction
1345 1405 Pfam PF09397 Ftsk gamma domain
1345 1405 InterPro IPR018541 FtsK gamma domain
99 109 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
22 44 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
1340 1404 Gene3D G3DSA:1.10.10.10 -
1340 1404 InterPro IPR036388 Winged helix-like DNA-binding domain superfamily
609 623 MobiDBLite mobidb-lite consensus disorder prediction
1341 1404 FunFam G3DSA:1.10.10.10:FF:000268 DNA translocase FtsK
110 132 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
831 856 MobiDBLite mobidb-lite consensus disorder prediction
159 164 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
1026 1328 FunFam G3DSA:3.40.50.300:FF:000209 Cell division protein FtsK
1055 1268 ProSiteProfiles PS50901 FtsK domain profile.
1055 1268 InterPro IPR002543 FtsK domain
185 1410 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
1 21 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
75 97 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
137 158 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
0.141
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Surrounding area
Pocket 2 P2Rank #2
0.106
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Surrounding area
Pocket 3 P2Rank #3
0.104
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Surrounding area
Pocket 4 P2Rank #4
0.063
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Surrounding area
Pocket 5 P2Rank #5
0.059
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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 #63
0.849 Unusual size
Show in viewer
Surrounding area
Residue sets
UniProt: Binding site:1086-1093
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_A0A0H3GUY9
AlphaFold DB full sequence Viewing
ColabFold VK055_1563
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.

51 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 1 records from similar proteins
Structural ligands 1 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
AGS PDB via homolog 523.2 Da · LogP -1.51 · TPSA 262.1 Open detail RCSB PDB
ZINC12360002 ZINC proposed compound · Tanimoto 0.855 Detail ZINC
ZINC12360703 ZINC proposed compound · Tanimoto 0.855 Detail ZINC
ZINC12503599 ZINC proposed compound · Tanimoto 0.855 Detail ZINC
ZINC16546165 ZINC proposed compound · Tanimoto 0.855 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
AGS RCSB PDB Q9I0M3 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)…

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.