KpATCC43816 Protein target profile

mechanosensitive ion channel family protein

Accession: VK055_1692

Gene: AIK80312.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism Not in network UniProt A0A0H3GQA3
Length 731
Pocket druggability (P2Rank · AlphaFold DB model) 0.858
Direct ligand evidence 0 56 total records
Functional annotation 0 EC 4 GO
Target summary

Strong target candidate with converging metabolic, structural and chemical evidence.

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
1.3% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

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

Structure confidence

ColabFold pLDDT
83.57 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) 0.858
Structure A0A0H3GQA3
Pocket Pocket 1
Druggability (FPocket) 0.841
Structure A0A0H3GQA3
Pocket Pocket 55
ColabFold model
P2Rank 0.825 · Pocket 1
FPocket 0.975 · Pocket 59
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 64 / 4744 genomes with a hit
Prevalence 1.3%

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.

MPWILLLLAALFTAPLSAATLPGVPTANTDKNSASEPDVEQKRAAYAALADVLANDSARQELIDQLRKAAATPPPDSTPTLTPPAVKEETTVLENVTQISREYGEQLSSRFSQLWRNITGSPHKPFNPQTFTSAAWHFLLLAGLVFAFWWLVRLAALPLYRKMGEWGRHKNRDRGNWLQLPLTIAGAFIIDLLLLALTLFVGQLLSDRLNGNNPTIAFQQSLFLNAFALIEFFKAILRLIFCPRIPALRPFNLSDEAASYWSLRLSALSSLIGYGLIVAVPIISNQVNVQVGALANVVIMLCITLWALYLIFHNKAVITQGLIHLADHSLAFFSLFIRAFALVWHWLACAYFVVLFFFSLFDPGNSLKFMMGATLQSLAIIGGAALVSGILSRWIAKTITLSPATQRNYPELQKRLNGWISASLKAARILTVCVAIMLLLSAWGLFDFREWLHNDAGQKTVDVLIRIALILFFSAIGWTVLASLIENRLASDIHGRPLPSARARTLLTLFRNALAVVISTITVMILLSEIGVNIAPLLAGAGALGLAISFGAQTLVKDIITGIFIQFENGMNTGDLVTIGPLTGTVERMSIRSVGVRQDTGAYHIIPWSSITTFANFVRGIGSVVANYDVDRHEDLDKASQALKAAVDDLLAQEEIRGLIIGEPSFAGLVGLSNTAFTLRVSFTTLPLKQWTVRFALDTQVKKHFDRAGVRAPVQTWQQLPMPGADSPAAE

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

4 GO

Subcellular localization

Localization
CytoplasmicMembrane

Gene Ontology (GO)

4
  • GO:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.
  • GO:0008381 Enables the transmembrane transfer of an monoatomic ion by a channel that opens in response to a mechanical stress.
  • GO:0055085 The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other.
  • 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.

59 records
Show feature table
Start End DB Term Name
534 556 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
557 731 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
506 528 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
426 448 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
289 312 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
396 415 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
14 18 Phobius SIGNAL_PEPTIDE_C_REGION C-terminal region of a signal peptide.
134 156 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
624 716 SUPERFAMILY SSF82689 Mechanosensitive channel protein MscS (YggB), C-terminal domain
624 716 InterPro IPR011066 Mechanosensitive ion channel MscS, C-terminal
486 505 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
446 569 Gene3D G3DSA:1.10.287.1260 -
135 157 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
633 653 Coils Coil Coil
506 528 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
416 443 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
177 199 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
1 18 SignalP_EUK SignalP-noTM SignalP-noTM
157 176 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
450 569 FunFam G3DSA:1.10.287.1260:FF:000003 MscS Mechanosensitive ion channel
219 241 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
623 710 Gene3D G3DSA:3.30.70.100 -
555 613 SUPERFAMILY SSF50182 Sm-like ribonucleoproteins
555 613 InterPro IPR010920 LSM domain superfamily
222 241 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
369 391 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
512 711 Pfam PF00924 Mechanosensitive ion channel
512 711 InterPro IPR006685 Mechanosensitive ion channel MscS
473 553 SUPERFAMILY SSF82861 Mechanosensitive channel protein MscS (YggB), transmembrane region
473 553 InterPro IPR011014 Mechanosensitive ion channel MscS, transmembrane-2
293 312 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
242 260 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
1 18 Phobius SIGNAL_PEPTIDE Signal peptide region
5 720 PANTHER PTHR30460 UNCHARACTERIZED
5 720 InterPro IPR045276 Mechanosensitive ion channel YbiO
261 283 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
463 485 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
571 618 Gene3D G3DSA:2.30.30.60 -
571 618 InterPro IPR023408 Mechanosensitive ion channel MscS, beta-domain superfamily
529 533 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
444 462 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
66 86 MobiDBLite mobidb-lite consensus disorder prediction
2 24 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
313 331 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
203 221 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
570 619 FunFam G3DSA:2.30.30.60:FF:000001 MscS Mechanosensitive ion channel
373 395 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
332 361 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
362 372 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
177 202 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
534 556 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
261 283 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
1 2 Phobius SIGNAL_PEPTIDE_N_REGION N-terminal region of a signal peptide.
332 354 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
463 485 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
3 13 Phobius SIGNAL_PEPTIDE_H_REGION Hydrophobic region of a signal peptide.
19 133 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
1 18 SignalP_GRAM_POSITIVE SignalP-TM SignalP-TM
284 288 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
0.858
Likely same site as FPocket 51 5.1 Å 13 shared residues 87% of smaller site
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Surrounding area
Pocket 2 P2Rank #2
0.562
Likely same site as FPocket 3 4.0 Å 19 shared residues 83% of smaller site
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Surrounding area
Pocket 3 P2Rank #3
0.208
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Surrounding area
Pocket 4 P2Rank #4
0.083
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Surrounding area
Pocket 5 P2Rank #5
0.062
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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 #55
0.841
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Surrounding area
Pocket 2 FPocket #3
0.673
Likely same site as P2Rank 2 4.0 Å 19 shared residues 83% of smaller site
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Surrounding area
Pocket 3 FPocket #56
0.614
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Surrounding area
Pocket 4 FPocket #51
0.413
Likely same site as P2Rank 1 5.1 Å 13 shared residues 87% 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_A0A0H3GQA3
AlphaFold DB full sequence Viewing
ColabFold VK055_1692
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
HEX PDB via homolog 86.2 Da · LogP 2.59 · TPSA 0.0 Open detail RCSB PDB
LMT PDB via homolog Detail RCSB PDB
PCW PDB via homolog Detail RCSB PDB
PEE PDB via homolog Detail RCSB PDB
POV 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
HEX RCSB PDB P0C0S1 86.2 Da LogP 2.59 TPSA 0.0 ✓ Ro5 ✓ Clean CCCCCC
LMT RCSB PDB P0C0S1 510.6 Da LogP -0.45 TPSA 178.5 3 viol. ✓ Clean CCCCCCCCCCCCO[C@H]1[C@@H]([C@H]([C@@H]([C@H](O1…
PCW RCSB PDB P0C0S1 787.1 Da LogP 12.36 TPSA 108.4 2 viol. ✓ Clean CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@H](CO[P@@](=O)(O)…
PEE RCSB PDB P0C0S1 744.0 Da LogP 11.61 TPSA 134.4 2 viol. ✓ Clean CCCCCCCC/C=C\CCCCCCCC(=O)OC[C@H](COP(=O)(O)OCCN…
POV RCSB PDB P0C0S1 760.1 Da LogP 11.17 TPSA 111.2 2 viol. ✓ Clean CCCCCCCCCCCCCCCC(=O)OC[C@@H](CO[P@](=O)([O-])OC…
R16 RCSB PDB P0C0S1 226.4 Da LogP 6.49 TPSA 0.0 1 viol. ✓ Clean CCCCCCCCCCCCCCCC

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.