KpATCC43816 Protein target profile

D-mannonate oxidoreductase

Accession: VK055_4916

Gene: AIK83442.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism 1 reaction UniProt A0A0H3H0V3
Length 488
Pocket druggability (P2Rank · AlphaFold DB model) 0.941
Metabolic reactions 1
Chokepoint Yes
Direct ligand evidence 0 52 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
2.2% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

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

Structure confidence

ColabFold pLDDT
96.48 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) 0.941
Structure A0A0H3H0V3
Pocket Pocket 1
Druggability (FPocket) 0.758
Structure A0A0H3H0V3
Pocket Pocket 1
ColabFold model
P2Rank 0.857 · Pocket 1
FPocket 0.802 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 104 / 4744 genomes with a hit
Prevalence 2.2%

Metabolic context

Reactions catalyzed, pathway membership, and centrality in the genome-scale metabolic network.

Explore metabolic network

Attractive metabolic target: catalyzes a producing & consuming chokepoint reaction in Pentose and glucuronate interconversions, no isoenzyme backup detected, more central than 92.7% of genes in this genome, no human homolog detected.

Relative network centrality 92.7% more central than 92.7% of genes in this genome
Chokepoint Chokepoint gene
Catalyzed reaction

1 reaction mapped to this gene in the metabolic model. Open the full network to see each one, with substrates/products and the reaction-reaction map.

Imported from KpATCC43816.sbml · 2026-07-09

Sequence

Primary amino-acid sequence viewer.

MTTIATATLPKNVQYPQYDRSQLRSRIVHFGFGAFHRAHQALLTDRVLNNVGGDWGICEISLFSGDTLMSQLREQDHLFTVLEKGADGNQPIVIGAVHECLNARLDSLAAIIEKFCEPQVAIVSLTITEKGYCIDPATGKLDPTHPRIIHDLENPTLPQSAPGILVEALARRRERGLPPFTVLSCDNIPDNGHVVKNAVLGMAEKRSPALADWIADNVSFPGTMVDRIVPAATPESLAEIAAVLGVDDPCAISCEPFIQWVVEDHFVAGRPAWETAGVQMTDDVLPWEQMKLRMLNGSHSFLAWLGYLAGHAHISDCMRDDVFRRAARQLMLDEQAPTLTITGVDLLAYADSLIARFSNPALKHRTWQIAMDGSQKLPQRMLDGIRVHLARDSRWPLLALGVAGWMRYVSGTDDAGQTIDVRDPLVDKIQQRVAQSDEQQRVDALLGLEEIFGRDLPHNAQFVAGIRAAWQQLATHGAREAVARALNS

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

4 GO

Subcellular localization

Localization
Cytoplasmic

Gene Ontology (GO)

4
  • GO:0003824 Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
  • GO:0019594 The chemical reactions and pathways involving mannitol, the alditol derived from D-mannose by reduction of the aldehyde group.
  • 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:0016616 Catalysis of an oxidation-reduction (redox) reaction in which a CH-OH group acts as a hydrogen or electron donor and reduces NAD+ or NADP.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

23 records
Show feature table
Start End DB Term Name
218 230 ProSitePatterns PS00974 Mannitol dehydrogenases signature.
218 230 InterPro IPR023027 Mannitol dehydrogenase, conserved site
7 281 Gene3D G3DSA:3.40.50.720 -
283 486 SUPERFAMILY SSF48179 6-phosphogluconate dehydrogenase C-terminal domain-like
283 486 InterPro IPR008927 6-phosphogluconate dehydrogenase-like, C-terminal domain superfamily
3 281 FunFam G3DSA:3.40.50.720:FF:000129 D-mannonate oxidoreductase
4 282 SUPERFAMILY SSF51735 NAD(P)-binding Rossmann-fold domains
4 282 InterPro IPR036291 NAD(P)-binding domain superfamily
216 462 Pfam PF08125 Mannitol dehydrogenase C-terminal domain
216 462 InterPro IPR013118 Mannitol dehydrogenase, C-terminal
26 188 Pfam PF01232 Mannitol dehydrogenase Rossmann domain
26 188 InterPro IPR013131 Mannitol dehydrogenase, N-terminal
282 487 Gene3D G3DSA:1.10.1040.10 -
282 487 InterPro IPR013328 6-phosphogluconate dehydrogenase, domain 2
248 263 PRINTS PR00084 Mannitol dehydrogenase signature
248 263 InterPro IPR000669 Mannitol dehydrogenase
218 231 PRINTS PR00084 Mannitol dehydrogenase signature
218 231 InterPro IPR000669 Mannitol dehydrogenase
27 37 PRINTS PR00084 Mannitol dehydrogenase signature
27 37 InterPro IPR000669 Mannitol dehydrogenase
179 192 PRINTS PR00084 Mannitol dehydrogenase signature
179 192 InterPro IPR000669 Mannitol dehydrogenase
6 487 PANTHER PTHR43362 MANNITOL DEHYDROGENASE DSF1-RELATED

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
0.941
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Surrounding area
Pocket 2 P2Rank #2
0.085
Likely same site as FPocket 1 2.3 Å 12 shared residues 92% of smaller site
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Surrounding area
Pocket 3 P2Rank #3
0.058
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Surrounding area
Pocket 4 P2Rank #4
0.042
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Surrounding area
Pocket 5 P2Rank #5
0.033
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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 #1
0.758
Likely same site as P2Rank 2 2.3 Å 12 shared residues 92% of smaller site
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_A0A0H3H0V3
AlphaFold DB full sequence Viewing
ColabFold VK055_4916
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.

52 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 2 records from similar proteins
Structural ligands 2 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
CS2 PDB via homolog 196.2 Da · LogP -3.49 · TPSA 138.5 Open detail RCSB PDB
MTL PDB via homolog Detail RCSB PDB
ZINC1531007 ZINC proposed compound · Tanimoto 0.950 Detail ZINC
ZINC100064885 ZINC proposed compound · Tanimoto 0.917 Detail ZINC
ZINC4403107 ZINC proposed compound · Tanimoto 0.917 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
CS2 RCSB PDB A0A0H2V7F2 196.2 Da LogP -3.49 TPSA 138.5 1 viol. ✓ Clean C([C@H]([C@H]([C@@H]([C@@H](C(=O)O)O)O)O)O)O
MTL RCSB PDB O08355 182.2 Da LogP -3.59 TPSA 121.4 1 viol. ✓ Clean C([C@H]([C@H]([C@@H]([C@@H](CO)O)O)O)O)O

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.