Protein target profile

KP13_00305

Glutathione reductase

Genome: KpKP13 Gene: AHE42214.1 gor 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3H498
Length 452
Pocket druggability 0.488
Direct ligand evidence 0 76 total records
Functional annotation 0 EC 7 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 (%)
54.329 Lower values reduce human off-target concern.
Human E-value
5.180000000000001e-161
Gut microbiome similarity
4.8% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
Y
DEG identity (%)
92.667 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
98.02 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 0.488
Structure A0A0H3H498
Pocket Pocket 24
P2Rank 0.96
Structure A0A0H3H498
Pocket Pocket 1
ColabFold model
FPocket 0.726 · Pocket 35
P2Rank 0.965 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 229 / 4744 genomes with a hit
Prevalence 4.8%

Cross-references

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

Sequence

Primary amino-acid sequence viewer.

MGMSKHYDYLAIGGGSGGIASINRAAMYGQKCALIEAKELGGTCVNVGCVPKKVMWHAAQIREAIHLYGPDYGFDTTINHFDWEKLVASRSAYIDRIHTSYDNVLGKNKVDVIKGFARFVDAHTVEVNGEIITADHILIATGGRPSHPDIPGVEYGIDSDGFFELPALPKRVAVVGAGYIAVELAGVINGLGAETHLFVRKHAPLRSFDPLIVETLVEVMNAEGPQLHTNAIPKAVVKNADGSLTLELEDGRSQTVDCLIWAIGREPATDNFNLAATGVKTNDKGYIIVDKFQNTNVPGIYAVGDNTGAVELTPVAVAAGRRLSERLFNNKPEEHLDYSNIPTVVFSHPPIGTVGLTEPQAREQYGDDAVKVYKSSFTAMYTAVTSHRQPCRMKLVCVGPEEKIVGIHGIGFGMDEMLQGFAVALKMGATKKDFDNTVAIHPTAAEEFVTMR

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

7 GO

Gene Ontology (GO)

7
  • GO:0006749 The chemical reactions and pathways involving glutathione, the tripeptide glutamylcysteinylglycine, which acts as a coenzyme for some enzymes and as an antioxidant in the protection of sulfhydryl groups in enzymes and other proteins; it has a specific role in the reduction of hydrogen peroxide (H2O2) and oxidized ascorbate, and it participates in the gamma-glutamyl cycle.
  • GO:0016668 Catalysis of an oxidation-reduction (redox) reaction in which a sulfur-containing group acts as a hydrogen or electron donor and reduces NAD or NADP.
  • 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:0004362 Catalysis of the reaction: 2 glutathione + NADP+ = glutathione disulfide + NADPH + H+.
  • GO:0045454 Any process that maintains the redox environment of a cell or compartment within a cell.
  • 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: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.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

38 records
Show feature table
Start End DB Term Name
338 452 SUPERFAMILY SSF55424 FAD/NAD-linked reductases, dimerisation (C-terminal) domain
338 452 InterPro IPR016156 FAD/NAD-linked reductase, dimerisation domain superfamily
6 452 PANTHER PTHR42737 GLUTATHIONE REDUCTASE
6 452 InterPro IPR046952 Glutathione reductase/thioredoxin reductase-like
340 452 FunFam G3DSA:3.30.390.30:FF:000003 Glutathione reductase
7 322 Gene3D G3DSA:3.50.50.60 -
7 322 InterPro IPR036188 FAD/NAD(P)-binding domain superfamily
340 452 Gene3D G3DSA:3.30.390.30 -
340 452 InterPro IPR016156 FAD/NAD-linked reductase, dimerisation domain superfamily
5 452 NCBIfam TIGR01421 glutathione-disulfide reductase
5 452 InterPro IPR006322 Glutathione reductase, eukaryote/bacterial
257 271 PRINTS PR00411 Pyridine nucleotide disulphide reductase class-I signature
300 307 PRINTS PR00411 Pyridine nucleotide disulphide reductase class-I signature
426 446 PRINTS PR00411 Pyridine nucleotide disulphide reductase class-I signature
171 196 PRINTS PR00411 Pyridine nucleotide disulphide reductase class-I signature
8 30 PRINTS PR00411 Pyridine nucleotide disulphide reductase class-I signature
137 146 PRINTS PR00411 Pyridine nucleotide disulphide reductase class-I signature
337 358 PRINTS PR00411 Pyridine nucleotide disulphide reductase class-I signature
404 419 PRINTS PR00411 Pyridine nucleotide disulphide reductase class-I signature
40 55 PRINTS PR00411 Pyridine nucleotide disulphide reductase class-I signature
7 161 FunFam G3DSA:3.50.50.60:FF:000030 Glutathione reductase
41 51 ProSitePatterns PS00076 Pyridine nucleotide-disulphide oxidoreductases class-I active site.
41 51 InterPro IPR012999 Pyridine nucleotide-disulphide oxidoreductase, class I, active site
2 449 PIRSF PIRSF000350 Hg-II_reductase_MerA
2 449 InterPro IPR001100 Pyridine nucleotide-disulphide oxidoreductase, class I
8 320 Pfam PF07992 Pyridine nucleotide-disulphide oxidoreductase
8 320 InterPro IPR023753 FAD/NAD(P)-binding domain
9 28 PRINTS PR00368 FAD-dependent pyridine nucleotide reductase signature
256 272 PRINTS PR00368 FAD-dependent pyridine nucleotide reductase signature
134 152 PRINTS PR00368 FAD-dependent pyridine nucleotide reductase signature
171 189 PRINTS PR00368 FAD-dependent pyridine nucleotide reductase signature
285 307 PRINTS PR00368 FAD-dependent pyridine nucleotide reductase signature
3 367 SUPERFAMILY SSF51905 FAD/NAD(P)-binding domain
3 367 InterPro IPR036188 FAD/NAD(P)-binding domain superfamily
146 263 Gene3D G3DSA:3.50.50.60 -
146 263 InterPro IPR036188 FAD/NAD(P)-binding domain superfamily
341 451 Pfam PF02852 Pyridine nucleotide-disulphide oxidoreductase, dimerisation domain
341 451 InterPro IPR004099 Pyridine nucleotide-disulphide oxidoreductase, dimerisation 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.

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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 #24
0.488
Likely same site as P2Rank 1 1.0 Å 38 shared residues 93% of smaller site
Unusual size
Show in viewer
Surrounding area
Site 2 FPocket #3
0.436
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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
0.96
Likely same site as FPocket 24 1.0 Å 38 shared residues 93% of smaller site
Show in viewer
Surrounding area
Site 2 P2Rank #2
0.049
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Surrounding area
Site 3 P2Rank #3
0.046
Show in viewer
Surrounding area
Site 4 P2Rank #4
0.042
Show in viewer
Surrounding area
Site 5 P2Rank #5
0.031
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Surrounding area
Residue sets
UniProt: Active site:439-439 Proton acceptor
UniProt: Binding site:174-181
UniProt: Binding site:262-262
UniProt: Binding site:303-303
UniProt: Binding site:51-51
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_A0A0H3H498
AlphaFold DB full sequence Viewing
ColabFold KP13_00305
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.

76 records
Chemistry signal

Structural and bioactivity evidence are both available for this target.

Direct evidence 0 same-protein records
Transferred evidence 26 records from similar proteins
Structural ligands 24 0 loaded crystals
Measured bioactivity 2 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
2JR PDB via homolog 351.5 Da · LogP 5.55 · TPSA 31.9 Open detail RCSB PDB
ACM PDB via homolog Detail RCSB PDB
AUP PDB via homolog Detail RCSB PDB
BTB PDB via homolog Detail RCSB PDB
ELI 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
2JR RCSB PDB Q389T8 351.5 Da LogP 5.55 TPSA 31.9 1 viol. ✓ Clean c1cc2c(cc[nH]2)cc1c3ncc(s3)C4(CCCCC4)N5CCCC5
ACM RCSB PDB P00390 59.1 Da LogP -0.51 TPSA 43.1 ✓ Ro5 ✓ Clean CC(=O)N
AUP RCSB PDB P00390 368.4 Da LogP 6.67 TPSA 25.8 1 viol. ✓ Clean c1ccc(cc1)p2c(c3c(c2c4ccccn4)CCCC3)c5ccccn5
BTB RCSB PDB Q9A0E2 209.2 Da LogP -3.01 TPSA 104.4 ✓ Ro5 ✓ Clean C(CO)N(CCO)C(CO)(CO)CO
ELI RCSB PDB P00390 286.3 Da LogP 3.42 TPSA 71.4 ✓ Ro5 Alert CC1=C(C(=O)c2ccccc2C1=O)CCCCCC(=O)O
GCG RCSB PDB Q389T8 723.9 Da LogP -4.58 TPSA 313.3 3 viol. ✓ Clean C(CCNC(=O)CNC(=O)[C@H](CS)NC(=O)CC[C@@H](C(=O)O…
GDS RCSB PDB P00390 612.6 Da LogP -3.88 TPSA 317.6 3 viol. ✓ Clean C(CC(=O)N[C@@H](CSSC[C@@H](C(=O)NCC(=O)O)NC(=O)…
GSH RCSB PDB P00390 307.3 Da LogP -2.21 TPSA 158.8 1 viol. ✓ Clean C(CC(=O)N[C@@H](CS)C(=O)NCC(=O)O)[C@@H](C(=O)O)N
HXP RCSB PDB P00390 286.3 Da LogP 3.20 TPSA 87.0 ✓ Ro5 ✓ Clean c1cc2c(cc1O)Oc3cc(ccc3C2CCC(=O)O)O
JWZ RCSB PDB Q389T8 607.9 Da LogP 3.63 TPSA 103.4 1 viol. ✓ Clean [H]/N=C(/N)\N1CCC(CC1)(CN(C)CCCN2CN(C3(C2=O)CCN…
M9J RCSB PDB Q389T8 555.8 Da LogP 6.51 TPSA 45.1 2 viol. ✓ Clean c1cc2c(ccn2CC3CCCN3)cc1c4nc(c(s4)C5(CCCCC5)N6CC…
M9S RCSB PDB Q389T8 434.7 Da LogP 5.77 TPSA 33.1 1 viol. ✓ Clean c1cc2c(ccn2C[C@@H]3CCCN3)cc1c4ncc(s4)C5(CCCCC5)…
M9Y RCSB PDB Q389T8 597.8 Da LogP 6.91 TPSA 45.1 2 viol. ✓ Clean c1cc2c(ccn2CCC3CCNCC3)cc1c4nc(c(s4)C5(CCCCC5)N6…
RBF RCSB PDB Q9A0E2 376.4 Da LogP -1.72 TPSA 161.6 ✓ Ro5 ✓ Clean Cc1cc2c(cc1C)N(C3=NC(=O)NC(=O)C3=N2)C[C@@H]([C@…
RD0 RCSB PDB Q389T8 462.7 Da LogP 6.41 TPSA 33.1 1 viol. ✓ Clean c1cc2c(ccn2CCC3CCNCC3)cc1c4ncc(s4)C5(CCCCC5)N6C…
RD7 RCSB PDB Q389T8 463.7 Da LogP 4.93 TPSA 36.3 ✓ Ro5 ✓ Clean c1cc2c(ccn2CCN3CCNCC3)cc1c4ncc(s4)C5(CCCCC5)N6C…
RGS RCSB PDB P00390 612.6 Da LogP -3.88 TPSA 317.6 3 viol. ✓ Clean C(CNC(=O)[C@@H](CSSC[C@H](C(=O)NCC[C@@H](C(=O)O…
TS2 RCSB PDB P00390 721.9 Da LogP -4.04 TPSA 313.3 3 viol. ✓ Clean C1CCNC(=O)CNC(=O)[C@H](CSSC[C@@H](C(=O)NCC(=O)N…
TS4 RCSB PDB P00390 867.1 Da LogP -4.38 TPSA 377.3 3 viol. ✓ Clean C(CCNCCCNC(=O)CNC(=O)[C@H](CSSC[C@@H](C(=O)NCC(…
WP5 RCSB PDB Q389T8 373.2 Da LogP 4.08 TPSA 41.9 ✓ Ro5 ✓ Clean CC1=Nc2ccc(cc2[C@@H](N1CC(=O)OC)c3ccccc3)Br
WP6 RCSB PDB Q389T8 346.9 Da LogP 6.00 TPSA 15.6 1 viol. ✓ Clean CC1=Nc2ccc(cc2[C@@H](N1Cc3ccccc3)c4ccccc4)Cl
WP7 RCSB PDB Q389T8 463.0 Da LogP 4.85 TPSA 52.3 ✓ Ro5 ✓ Clean CC1=Nc2ccc(cc2[C@@H](N1CCN3CCN(CC3)C(=O)c4ccco4…
WPE RCSB PDB Q389T8 393.9 Da LogP 4.82 TPSA 57.8 ✓ Ro5 ✓ Clean CC1=Nc2ccc(cc2[C@@H](N1CCNC(=O)c3ccco3)c4ccccc4…
WPF RCSB PDB Q389T8 355.9 Da LogP 5.06 TPSA 18.8 1 viol. ✓ Clean Cc1ccc(cc1)[C@H]2c3cc(ccc3N=C(N2CCCN(C)C)C)Cl

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.