Protein target profile

KP13_32247

Glyceraldehyde-3-phosphate dehydrogenase

Genome: KpKP13 Gene: gapA AHE45073.1 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3GN34
Length 331
Pocket druggability 0.502
Direct ligand evidence 0 61 total records
Functional annotation 1 EC 6 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 (%)
69.685 Lower values reduce human off-target concern.
Human E-value
7.91e-128
Gut microbiome similarity
39.1% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

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

Localization

Localization
Cytoplasmic

Structure confidence

ColabFold pLDDT
98.37 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 0.502
Structure A0A0H3GN34
Pocket Pocket 2
P2Rank 0.78
Structure A0A0H3GN34
Pocket Pocket 1
ColabFold model
FPocket 0.36 · Pocket 30
P2Rank 0.773 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 1853 / 4744 genomes with a hit
Prevalence 39.1%

Cross-references

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

Sequence

Primary amino-acid sequence viewer.

MTIKVGINGFGRIGRIVFRAAQKRSDIEIVAINDLLDAEYMAYMLKYDSTHGRFDGTVEVKDGHLVVNGKKIRVTAERDPANLKWDEVGVDVVAEATGIFLTDETARKHITAGAKKVVLTGPSKDNTPMFVRGANFDAYAGQDIVSNASCTTNCLAPLAKVINDNFGIVEGLMTTVHATTATQKTVDGPSHKDWRGGRGAAQNIIPSSTGAAKAVGKVLPELNGKLTGMAFRVPTPNVSVVDLTVRLEKAASYEEIKKAIKAASEGAMKGVLGYTEDDVVSTDFNGEVCTSVFDAKAGIALNDNFVKLVSWYDNETGYSNKVLDLIAHISK

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 6 GO

Enzyme Commission (EC)

1

Gene Ontology (GO)

6
  • GO:0050661 Binding to nicotinamide-adenine dinucleotide phosphate, a coenzyme involved in many redox and biosynthetic reactions; binding may be to either the oxidized form, NADP+, or the reduced form, NADPH.
  • GO:0051287 Binding to nicotinamide adenine dinucleotide, a coenzyme involved in many redox and biosynthetic reactions; binding may be to either the oxidized form, NAD+, or the reduced form, NADH.
  • GO:0016620 Catalysis of an oxidation-reduction (redox) reaction in which an aldehyde or ketone (oxo) group acts as a hydrogen or electron donor and reduces NAD or NADP.
  • GO:0006006 The chemical reactions and pathways involving glucose, the aldohexose gluco-hexose. D-glucose is dextrorotatory and is sometimes known as dextrose; it is an important source of energy for living organisms and is found free as well as combined in homo- and hetero-oligosaccharides and polysaccharides.
  • GO:0004365 Catalysis of the reaction: D-glyceraldehyde 3-phosphate + phosphate + NAD+ = 3-phospho-D-glyceroyl phosphate + NADH + H+.
  • GO:0072524 The chemical reactions and pathways involving a pyridine-containing compound, i.e. any compound that contains pyridine or a formal derivative thereof.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

31 records
Show feature table
Start End DB Term Name
149 314 FunFam G3DSA:3.30.360.10:FF:000001 Glyceraldehyde-3-phosphate dehydrogenase
4 324 NCBIfam TIGR01534 glyceraldehyde-3-phosphate dehydrogenase, type I
4 324 InterPro IPR006424 Glyceraldehyde-3-phosphate dehydrogenase, type I
3 326 Gene3D G3DSA:3.40.50.720 -
148 155 ProSitePatterns PS00071 Glyceraldehyde 3-phosphate dehydrogenase active site.
148 155 InterPro IPR020830 Glyceraldehyde 3-phosphate dehydrogenase, active site
149 314 Gene3D G3DSA:3.30.360.10 Dihydrodipicolinate Reductase; domain 2
3 166 SUPERFAMILY SSF51735 NAD(P)-binding Rossmann-fold domains
3 166 InterPro IPR036291 NAD(P)-binding domain superfamily
3 150 SMART SM00846 gp_dh_n_7
3 150 InterPro IPR020828 Glyceraldehyde 3-phosphate dehydrogenase, NAD(P) binding domain
3 102 Pfam PF00044 Glyceraldehyde 3-phosphate dehydrogenase, NAD binding domain
3 102 InterPro IPR020828 Glyceraldehyde 3-phosphate dehydrogenase, NAD(P) binding domain
2 331 PANTHER PTHR10836 GLYCERALDEHYDE 3-PHOSPHATE DEHYDROGENASE
2 331 InterPro IPR020831 Glyceraldehyde/Erythrose phosphate dehydrogenase family
149 312 SUPERFAMILY SSF55347 Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain
144 162 PRINTS PR00078 Glyceraldehyde-3-phosphate dehydrogenase signature
144 162 InterPro IPR020831 Glyceraldehyde/Erythrose phosphate dehydrogenase family
171 187 PRINTS PR00078 Glyceraldehyde-3-phosphate dehydrogenase signature
171 187 InterPro IPR020831 Glyceraldehyde/Erythrose phosphate dehydrogenase family
109 122 PRINTS PR00078 Glyceraldehyde-3-phosphate dehydrogenase signature
109 122 InterPro IPR020831 Glyceraldehyde/Erythrose phosphate dehydrogenase family
268 283 PRINTS PR00078 Glyceraldehyde-3-phosphate dehydrogenase signature
268 283 InterPro IPR020831 Glyceraldehyde/Erythrose phosphate dehydrogenase family
228 245 PRINTS PR00078 Glyceraldehyde-3-phosphate dehydrogenase signature
228 245 InterPro IPR020831 Glyceraldehyde/Erythrose phosphate dehydrogenase family
3 157 FunFam G3DSA:3.40.50.720:FF:000001 Glyceraldehyde-3-phosphate dehydrogenase
1 331 PIRSF PIRSF000149 GAPDH
1 331 InterPro IPR020831 Glyceraldehyde/Erythrose phosphate dehydrogenase family
155 312 Pfam PF02800 Glyceraldehyde 3-phosphate dehydrogenase, C-terminal domain
155 312 InterPro IPR020829 Glyceraldehyde 3-phosphate dehydrogenase, catalytic domain

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 #2
0.502
Show in viewer
Surrounding area
Site 2 FPocket #5
0.224
Show in viewer
Surrounding area

Binding pockets · P2Rank

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

Site 1 P2Rank #1
0.78
Show in viewer
Surrounding area
Site 2 P2Rank #2
0.118
Show in viewer
Surrounding area
Site 3 P2Rank #3
0.075
Show in viewer
Surrounding area
Site 4 P2Rank #4
0.039
Show in viewer
Surrounding area
Site 5 P2Rank #5
0.029
Show in viewer
Surrounding area
Residue sets
UniProt: Active site:150-150 Nucleophile
UniProt: Binding site:12-13
UniProt: Binding site:120-120
UniProt: Binding site:149-151
UniProt: Binding site:180-180
UniProt: Binding site:209-210
UniProt: Binding site:232-232
UniProt: Binding site:314-314
UniProt: Binding site:34-34
UniProt: Binding site:78-78
UniProt: Site:177-177 Activates thiol group during catalysis
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_A0A0H3GN34
AlphaFold DB full sequence Viewing
ColabFold KP13_32247
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.

61 records
Chemistry signal

Structural and bioactivity evidence are both available for this target.

Direct evidence 0 same-protein records
Transferred evidence 11 records from similar proteins
Structural ligands 8 0 loaded crystals
Measured bioactivity 3 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
9HB PDB via homolog 146.1 Da · LogP 0.11 · TPSA 52.6 Open detail RCSB PDB
APR PDB via homolog Detail RCSB PDB
AW9 PDB via homolog Detail RCSB PDB
F4F PDB via homolog Detail RCSB PDB
G3P 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
9HB RCSB PDB P16858 146.1 Da LogP 0.11 TPSA 52.6 ✓ Ro5 ✓ Clean COC(=O)CCC(=O)OC
APR RCSB PDB P56649 559.3 Da LogP -3.28 TPSA 291.5 3 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…
AW9 RCSB PDB P04406 130.1 Da LogP -0.20 TPSA 63.6 ✓ Ro5 ✓ Clean COC(=O)C=CC(=O)O
F4F RCSB PDB P04406 282.3 Da LogP 1.60 TPSA 83.8 ✓ Ro5 ✓ Clean CC(C)[C@H]1CC[C@]([C@@H]2[C@@H]1C=C(COC2=O)C(=O…
G3P RCSB PDB P0A9B2 172.1 Da LogP -1.55 TPSA 107.2 ✓ Ro5 ✓ Clean C([C@H](COP(=O)(O)O)O)O
PHN RCSB PDB P00355 180.2 Da LogP 2.78 TPSA 25.8 ✓ Ro5 ✓ Clean c1cc2ccc3cccnc3c2nc1
SND RCSB PDB P56649 679.5 Da LogP -3.11 TPSA 304.0 3 viol. ✓ Clean c1cc(c[n+](c1)[C@H]2[C@@H]([C@@H]([C@H](O2)COP(…
XPE RCSB PDB P04406 458.5 Da LogP -0.88 TPSA 123.5 1 viol. ✓ Clean C(COCCOCCOCCOCCOCCOCCOCCOCCOCCO)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.