Protein target profile

KP13_31770

intracellular growth attenuator protein IgaA

Genome: KpKP13 Gene: AHE42315.1 igaA 3D evidence: Experimental + AlphaFold DB model + ColabFold model UniProt A0A0H3GWS2
Length 711
Pocket druggability 0.876
Functional annotation 0 EC 2 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
1.9% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
Y
DEG identity (%)
72.599 Higher values support similarity to known essential genes.
DEG E-value
0.0 Smaller values mean stronger essential-gene similarity.

Localization

Localization
CytoplasmicMembrane

Structure confidence

ColabFold pLDDT
82.47 0-100 confidence; >70 supports local structural interpretation.

Binding-site evidence

AlphaFold DB / UniProt model

The selected pocket score is the FPocket value used for ranking after applying the curated structure priority. It estimates small-molecule pocket quality; it is not experimental binding evidence. The 3D viewer may show a different loaded structure, so visible pockets can differ.

FPocket 0.876
Structure A0A0H3GWS2
Pocket Pocket 80
P2Rank 0.765
Structure A0A0H3GWS2
Pocket Pocket 1
ColabFold model
FPocket 0.791 · Pocket 72
P2Rank 0.544 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 88 / 4744 genomes with a hit
Prevalence 1.9%

Cross-references

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

Structure

Sequence

Primary amino-acid sequence viewer.

MGMGTFLIFLTALLICVLLIGWWYRAHARRRRLPLLHAFSDATTRQLPADERQAIEKYVAELSHAQQVPASGATSAPVALALNEQSDTVYAVTRAITRYGITTDAPNKWRYFLDSVEVHLPPFWEQHINDENSVELIPTDSLPLVITLNGHSLSDYRQEAQSYALERASATQASIRGEESEQVELRQIRRETPEEHALNRPDGLREAILIVASFLFFYFSLIGPAVFTPWLVAAGLLLLAAGLWGIYAPPRRAALREIHCLRGVPKRWGLFGENDQEQINNISLGIIDLIYPRHWQPWIAQDLGQQTDIDIYLNRHVARQGRYLSLHDEVKNFPLQYWLRSAIIAAGALVVVIMLWASVPLNMPFKFTLSWLKGAQTIEATTVSQLEKAHVRIGDTLRLTGTGMCNIRTPGSWSAKEDSPFLPFDCSQIVWNDAPPLPLPESDIVSKATALMQSVQRQLHPETDDDSRVSPALRSAIQKSGMVLLDDFGDIVQKTNDLCSAKDDCLRLKNALVNLGNTRNWETLTKRATAGKLDGVNVLLRPVSAESLENLVTTSTAPFVIRETSRAAQALNSPAPGGFLIASDEGSVLVNQPWPAVSLYDYPAHEQWGELRRLAGMLMHTPFHAEGIVTNLFTDANGTQHINLHRIPDRSGLWRYLGITLLLLSMVGCMAYHAVQALRRYQRHRQRMEEIQKYYESCLNPVLLPSSDSQD

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

2 GO

Gene Ontology (GO)

2
  • GO:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.
  • 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.

18 records
Show feature table
Start End DB Term Name
248 336 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
337 359 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
230 247 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
5 24 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
6 24 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
203 221 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
360 652 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
25 202 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
227 247 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
337 359 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
3 705 Pfam PF07095 Intracellular growth attenuator protein IgaA
3 705 InterPro IPR010771 Intracellular growth attenuator IgaA
1 5 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
653 675 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
207 226 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
222 226 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
676 711 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
653 675 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 · FPocket

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

Site 1 FPocket #10
0.451
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Surrounding area
Site 2 FPocket #2
0.435
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Surrounding area
Site 3 FPocket #8
0.342
Likely same site as P2Rank 1 5.2 Å 5 shared residues 56% of smaller site
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Surrounding area
Site 4 FPocket #4
0.302
Unusual size
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Surrounding area

Binding pockets · P2Rank

Probability: high ≥ 0.5 · medium 0.2–0.49 · low < 0.2

Site 1 P2Rank #1
0.02
Likely same site as FPocket 8 5.2 Å 5 shared residues 56% of smaller site
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Surrounding area
All structural evidence 1 experimental · 2 predicted

Structural evidence

1 + 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
PDB 9BIZ
X-ray 2.50 Å A
38.4% 373-645
Viewing
AlphaFold DB AF_A0A0H3GWS2
AlphaFold DB full sequence Loaded
ColabFold KP13_31770
ColabFold full sequence Loaded