Protein target profile

KP13_03720

putative oxidoreductase

Genome: KpKP13 Gene: AHE46561.1 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3GR23
Length 239
Pocket druggability 0.97
Direct ligand evidence 0 96 total records
Functional annotation 0 EC 2 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.

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 (%)
34.524 Lower values reduce human off-target concern.
Human E-value
6.05e-06
Gut microbiome similarity
0.7% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

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

Localization

Localization
Cytoplasmic

Structure confidence

ColabFold pLDDT
95.62 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 0.97
Structure A0A0H3GR23
Pocket Pocket 6
P2Rank 0.973
Structure A0A0H3GR23
Pocket Pocket 1
ColabFold model
FPocket 0.958 · Pocket 8
P2Rank 0.977 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 35 / 4744 genomes with a hit
Prevalence 0.7%

Cross-references

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

Sequence

Primary amino-acid sequence viewer.

MMTVLITGASSGIGAGLAKSFAADGHLVIACGRDASRLAALQQLSPNISVRLFDMTDRDACRQALTGCFADLIILCAGTCEYLDHGQVDAALVERVMATNFLGPVNCLAALQTQLEAGDRVVLVSSMAHWLPFPRAEAYGASKAALSWFANSLRLDWESKGVAVTVVSPGFVDTPLTRKNDFAMPGRVSVDRAVAAIRHGLAKGKNHIAFPTGFSLALRLLASLPSGIQRLLLRRMVRS

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

2 GO

Gene Ontology (GO)

2
  • GO:0016491 Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
  • GO:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

21 records
Show feature table
Start End DB Term Name
126 154 ProSitePatterns PS00061 Short-chain dehydrogenases/reductases family signature.
126 154 InterPro IPR020904 Short-chain dehydrogenase/reductase, conserved site
1 3 Phobius SIGNAL_PEPTIDE_N_REGION N-terminal region of a signal peptide.
18 22 Phobius SIGNAL_PEPTIDE_C_REGION C-terminal region of a signal peptide.
3 236 PANTHER PTHR44196 DEHYDROGENASE/REDUCTASE SDR FAMILY MEMBER 7B
23 239 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
3 180 Pfam PF00106 short chain dehydrogenase
3 180 InterPro IPR002347 Short-chain dehydrogenase/reductase SDR
2 237 Gene3D G3DSA:3.40.50.720 -
1 22 Phobius SIGNAL_PEPTIDE Signal peptide region
4 17 Phobius SIGNAL_PEPTIDE_H_REGION Hydrophobic region of a signal peptide.
3 20 PRINTS PR00081 Glucose/ribitol dehydrogenase family signature
3 20 InterPro IPR002347 Short-chain dehydrogenase/reductase SDR
113 129 PRINTS PR00081 Glucose/ribitol dehydrogenase family signature
113 129 InterPro IPR002347 Short-chain dehydrogenase/reductase SDR
160 177 PRINTS PR00081 Glucose/ribitol dehydrogenase family signature
160 177 InterPro IPR002347 Short-chain dehydrogenase/reductase SDR
139 158 PRINTS PR00081 Glucose/ribitol dehydrogenase family signature
139 158 InterPro IPR002347 Short-chain dehydrogenase/reductase SDR
3 236 SUPERFAMILY SSF51735 NAD(P)-binding Rossmann-fold domains
3 236 InterPro IPR036291 NAD(P)-binding domain superfamily

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.

Download VMD script Full viewer

Loading 3D structure...

Drag to rotate — click the view, then scroll to zoom.

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 #6
0.97
Likely same site as P2Rank 1 8.0 Å 23 shared residues 88% of smaller site
Unusual size
Show in viewer
Surrounding area

Binding pockets · P2Rank

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

Site 1 P2Rank #1
0.973
Likely same site as FPocket 6 8.0 Å 23 shared residues 88% of smaller site
Show in viewer
Surrounding area
Site 2 P2Rank #2
0.132
Show in viewer
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_A0A0H3GR23
AlphaFold DB full sequence Viewing
ColabFold KP13_03720
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.

96 records
Chemistry signal

Structural and bioactivity evidence are both available for this target.

Direct evidence 0 same-protein records
Transferred evidence 46 records from similar proteins
Structural ligands 6 0 loaded crystals
Measured bioactivity 40 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
8X3 PDB via homolog 126.1 Da · LogP -1.13 · TPSA 74.6 Open detail RCSB PDB
A6O PDB via homolog Detail RCSB PDB
AAE PDB via homolog Detail RCSB PDB
PG0 PDB via homolog Detail RCSB PDB
QT8 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
8X3 RCSB PDB D3U1D9 126.1 Da LogP -1.13 TPSA 74.6 ✓ Ro5 ✓ Clean C(CS(=O)(=O)O)O
A6O RCSB PDB C0IR58 314.4 Da LogP 3.93 TPSA 46.5 ✓ Ro5 ✓ Clean CC[C@]1([C@H](CCC1=O)O)C/C=C/2\CCCc3c2ccc(c3)OC
AAE RCSB PDB A0A1E3M3N6 102.1 Da LogP 0.05 TPSA 54.4 ✓ Ro5 ✓ Clean CC(=O)CC(=O)O
PG0 RCSB PDB P39333 120.1 Da LogP -0.36 TPSA 38.7 ✓ Ro5 ✓ Clean COCCOCCO
QT8 RCSB PDB A0A1E3M3N6 116.1 Da LogP 0.44 TPSA 54.4 ✓ Ro5 ✓ Clean CCC(=O)CC(=O)O
TAM RCSB PDB C0IR58 163.2 Da LogP -1.17 TPSA 86.7 ✓ Ro5 ✓ Clean C(CO)C(CCO)(CCO)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.