Protein target profile

KP13_01574

putative inner membrane protein

Genome: KpKP13 Gene: AHE43900.1 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3GZZ9
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Length 519
Pocket druggability 0.991
Functional annotation 0 EC 3 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.

Main supporting evidence

Independent pocket support: FPocket + P2Rank Both predictors report a high-scoring binding site (FPocket 0.99, P2Rank 0.72). Use the 3D pocket comparison to verify whether they identify the same site. No similar human protein detected The current BLAST sequence screen did not find a significant human match, lowering apparent off-target risk. Core gene across strains Marked as conserved by both pan-genome tools: Roary and CoreCruncher. Strong predicted binding pocket FPocket selected-pocket score 0.99. This is a computational pocket signal, not binding validation. Review the complete evidence below

Risks to review

Microbiome similarity 153 of 4744 screened genomes (3.2%) have a significant similarity hit. This target also has a predicted binding pocket (FPocket 0.99) — check the ligand evidence before deprioritizing on off-target risk alone.

Evidence gaps

No metabolic context No SBML/network-derived reaction evidence is loaded for this protein. No ligand evidence No experimental PDB ligands, measured ChEMBL bioactivity, or proposed ZINC compound records are available.
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
3.2% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
Y
DEG identity (%)
86.32 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
78.77 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 0.991
Structure A0A0H3GZZ9
Pocket Pocket 45
P2Rank 0.722
Structure A0A0H3GZZ9
Pocket Pocket 1
ColabFold model
FPocket 0.983 · Pocket 1
P2Rank 0.468 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 153 / 4744 genomes with a hit
Prevalence 3.2%

Cross-references

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

Sequence

UniProt A0A0H3GZZ9

Sequence

Primary amino-acid sequence viewer.

MELLMDPSIWAGLLTLIVLEIVLGIDNLVFIAILADKLPPKQRDKARLIGLSLALVMRLGLLSVISWMVTLTKPLITIADFSFSGRDLIMLLGGIFLLFKATTELHERLENRQHDAGHGKGYASFWVVVLQIVVLDAVFSLDAVITAVGMVNHLPVMMAAVVIAMILMLLASKPLTRFVNQHPTVVVLCLSFLLMIGLSLVAEGFGFHIPKGYLYAAIGFSIIIEFFNQVARRNFVRHQSTLPLRARTADAILRLMGGRKQASVSHDADSPAAVPVPEGAFAEEERYMINGVLTLAQRSLRSIMTPRGEISWVDAEQSEDEIRRQLLSSPHSLFPVCRGELDEIIGIVRAKEMLVALESGENVAALASASPAIVVPETLDPINLLGVLRRARGSFVIVTNEFGVVQGLVTPLDVLEAIAGEFPDADETPEIVIDGDGWLIKGSTDLHALQQALGLDPLINDDEDIATVAGLVISANGHIPRIGDVVSLPPLHFTVVEANDYRVDLVRAVVTRPPSDEEE

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

3 GO

Gene Ontology (GO)

3
  • GO:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.
  • GO:0050660 Binding to FAD, flavin-adenine dinucleotide, the coenzyme or the prosthetic group of various flavoprotein oxidoreductase enzymes, in either the oxidized form, FAD, or the reduced form, FADH2.
  • 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.

44 records
Show feature table
Start End DB Term Name
154 172 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
281 433 Gene3D G3DSA:3.10.580.10 -
281 433 InterPro IPR046342 CBS domain superfamily
13 35 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
173 183 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
81 101 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
85 102 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
149 153 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
281 433 FunFam G3DSA:3.10.580.10:FF:000008 Integral membrane protein TerC
432 518 SUPERFAMILY SSF56176 FAD-binding/transporter-associated domain-like
432 518 InterPro IPR036318 FAD-binding, type PCMH-like superfamily
208 212 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
367 427 ProSiteProfiles PS51371 CBS domain profile.
367 427 InterPro IPR000644 CBS domain
37 47 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
304 363 ProSiteProfiles PS51371 CBS domain profile.
304 363 InterPro IPR000644 CBS domain
213 231 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
12 36 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
432 509 Pfam PF03471 Transporter associated domain
432 509 InterPro IPR005170 Transporter-associated domain
48 69 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
14 203 Pfam PF03741 Integral membrane protein TerC family
14 203 InterPro IPR005496 Integral membrane protein TerC
299 416 CDD cd04590 CBS_pair_CorC_HlyC_assoc
299 416 InterPro IPR044751 Ion transporter-like, CBS domain
1 11 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
150 172 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
434 510 Gene3D G3DSA:3.30.465.10 -
434 510 InterPro IPR016169 FAD-binding, type PCMH, subdomain 2
70 80 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
288 422 SUPERFAMILY SSF54631 CBS-domain pair
288 422 InterPro IPR046342 CBS domain superfamily
122 148 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
185 207 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
184 207 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
431 512 SMART SM01091 CorC_HlyC_2
431 512 InterPro IPR005170 Transporter-associated domain
212 231 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
102 121 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
123 145 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
48 70 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
51 510 PANTHER PTHR22777 HEMOLYSIN-RELATED
232 519 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.

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 #45
0.991
Unusual size
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Surrounding area
Site 2 FPocket #5
0.605
Likely same site as P2Rank 2 1.4 Å 13 shared residues 93% of smaller site
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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
0.722
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Surrounding area
Site 2 P2Rank #2
0.405
Likely same site as FPocket 5 1.4 Å 13 shared residues 93% of smaller site
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Surrounding area
Site 3 P2Rank #3
0.179
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Surrounding area
Site 4 P2Rank #4
0.068
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Surrounding area
Site 5 P2Rank #5
0.003
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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_A0A0H3GZZ9
AlphaFold DB — — full sequence — Viewing
ColabFold KP13_01574
ColabFold — — full sequence — Loaded