Protein target profile

VK055_2379

1-deoxy-D-xylulose 5-phosphate reductoisomerase

Genome: KpATCC43816 Gene: dxr AIK80976.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism 1 reaction UniProt A0A0H3GJN7
Length 400
Pocket druggability 0.956
Metabolic reactions 1
Chokepoint Yes
Direct ligand evidence 0 99 total records
Functional annotation 1 EC 7 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
4.3% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
Y
DEG identity (%)
80.808 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
97.08 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 0.956
Structure A0A0H3GJN7
Pocket Pocket 1
P2Rank 0.943
Structure A0A0H3GJN7
Pocket Pocket 1
ColabFold model
FPocket 0.918 · Pocket 1
P2Rank 0.956 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 203 / 4744 genomes with a hit
Prevalence 4.3%

Cross-references

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

Metabolic context

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

Explore metabolic network

Attractive metabolic target: catalyzes a producing chokepoint reaction in Terpenoid backbone biosynthesis, no isoenzyme backup detected, more central than 95.7% of genes in this genome, no human homolog detected.

Relative network centrality 95.7% more central than 95.7% 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.

MKQLTVLGSTGSIGCSTLDVVRHNPGRFSVAALVAGKNVDRMVEQCLEFTPRYAVMDDAQSAERLRTRLHEHGSRTEVLSGQQAAAEVAALDEVDQVMAAIVGAAGLVPTLAAIRAGKTVLLANKESLVTCGRLFMEAVQQSGARLLPVDSEHNAIFQSMPETIQQHLGYADLARNGVSSILLTGSGGPFRETAVAELAAMTPDQACRHPNWSMGRKISVDSATMMNKGLEYIEARWLFNASAQQMEVLIHPQSVIHSMVRYQDGSVLAQLGEPDMRTPIAHTMGWPQRLNSGVKPLDFCQLSNLSFSAPDYTRYPCLKLAMDAFDVGQAATTTLNAANEESVAAFLHGDIRFTDIAAVNLAVLDKMDLQEPQGIDDVLVIDAEARAIAHQQLLRLVAQA

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 7 GO

Enzyme Commission (EC)

1

Gene Ontology (GO)

7
  • GO:0030604 Catalysis of the reaction: 2-C-methyl-D-erythritol 4-phosphate + NADP+ = 1-deoxy-D-xylulose 5-phosphate + H+ + NADPH.
  • GO:0005515 Binding to a protein.
  • GO:0046872 Binding to a metal ion.
  • GO:0070402 Binding to the reduced form, NADPH, of nicotinamide-adenine dinucleotide phosphate, a coenzyme involved in many redox and biosynthetic reactions.
  • GO:0008299 The chemical reactions and pathways resulting in the formation of an isoprenoid compound, isoprene (2-methylbuta-1,3-diene) or compounds containing or derived from linked isoprene (3-methyl-2-butenylene) residues.
  • GO:0030145 Binding to a manganese ion (Mn).
  • GO:0051484 OBSOLETE. The chemical reactions and pathways resulting in the formation of isopentenyl diphosphate by the mevalonate-independent pathway that contributes to terpenoid biosynthesis. Isopentenyl diphosphate (IPP) is the fundamental unit in isoprenoid biosynthesis and is biosynthesized from pyruvate and glyceraldehyde 3-phosphate via intermediates, including 1-deoxy-D-xylulose 5-phosphate.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

24 records
Show feature table
Start End DB Term Name
1 399 PIRSF PIRSF006205 Dxp_reductoisomrs
1 399 InterPro IPR003821 1-deoxy-D-xylulose 5-phosphate reductoisomerase
1 150 Gene3D G3DSA:3.40.50.720 -
1 15 ProSiteProfiles PS51257 Prokaryotic membrane lipoprotein lipid attachment site profile.
2 150 SUPERFAMILY SSF51735 NAD(P)-binding Rossmann-fold domains
2 150 InterPro IPR036291 NAD(P)-binding domain superfamily
271 387 Pfam PF13288 DXP reductoisomerase C-terminal domain
271 387 InterPro IPR026877 DXP reductoisomerase C-terminal domain
1 397 NCBIfam TIGR00243 1-deoxy-D-xylulose-5-phosphate reductoisomerase
1 397 InterPro IPR003821 1-deoxy-D-xylulose 5-phosphate reductoisomerase
146 239 Pfam PF08436 1-deoxy-D-xylulose 5-phosphate reductoisomerase C-terminal domain
146 239 InterPro IPR013644 1-deoxy-D-xylulose 5-phosphate reductoisomerase, C-terminal
126 274 SUPERFAMILY SSF55347 Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain
312 397 Gene3D G3DSA:1.10.1740.10 -
312 397 FunFam G3DSA:1.10.1740.10:FF:000004 1-deoxy-D-xylulose 5-phosphate reductoisomerase
1 150 FunFam G3DSA:3.40.50.720:FF:000045 1-deoxy-D-xylulose 5-phosphate reductoisomerase
4 392 Hamap MF_00183 1-deoxy-D-xylulose 5-phosphate reductoisomerase [dxr].
4 392 InterPro IPR003821 1-deoxy-D-xylulose 5-phosphate reductoisomerase
301 393 SUPERFAMILY SSF69055 1-deoxy-D-xylulose-5-phosphate reductoisomerase, C-terminal domain
301 393 InterPro IPR036169 DXP reductoisomerase, C-terminal domain superfamily
2 393 PANTHER PTHR30525 1-DEOXY-D-XYLULOSE 5-PHOSPHATE REDUCTOISOMERASE
2 393 InterPro IPR003821 1-deoxy-D-xylulose 5-phosphate reductoisomerase
4 132 Pfam PF02670 1-deoxy-D-xylulose 5-phosphate reductoisomerase
4 132 InterPro IPR013512 1-deoxy-D-xylulose 5-phosphate reductoisomerase, N-terminal

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 #1
0.956
Likely same site as P2Rank 1 4.1 Å 29 shared residues 97% of smaller site
Unusual size
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Surrounding area
Site 2 FPocket #4
0.488
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Surrounding area
Site 3 FPocket #22
0.341
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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
0.943
Likely same site as FPocket 1 4.1 Å 29 shared residues 97% of smaller site
Show in viewer
Surrounding area
Site 2 P2Rank #2
0.028
Show in viewer
Surrounding area
Site 3 P2Rank #3
0.003
Show in viewer
Surrounding area
Site 4 P2Rank #4
0.001
Show in viewer
Surrounding area
Residue sets
UniProt: Binding site:10-10
UniProt: Binding site:11-11
UniProt: Binding site:12-12
UniProt: Binding site:124-124
UniProt: Binding site:125-125
UniProt: Binding site:126-126
UniProt: Binding site:13-13
UniProt: Binding site:150-150
UniProt: Binding site:151-151
UniProt: Binding site:152-152
UniProt: Binding site:186-186
UniProt: Binding site:209-209
UniProt: Binding site:215-215
UniProt: Binding site:222-222
UniProt: Binding site:227-227
UniProt: Binding site:228-228
UniProt: Binding site:231-231
UniProt: Binding site:36-36
UniProt: Binding site:37-37
UniProt: Binding site:38-38
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_A0A0H3GJN7
AlphaFold DB full sequence Viewing
ColabFold VK055_2379
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.

99 records
Chemistry signal

Structural and bioactivity evidence are both available for this target.

Direct evidence 0 same-protein records
Transferred evidence 49 records from similar proteins
Structural ligands 7 0 loaded crystals
Measured bioactivity 42 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
C0K PDB via homolog 309.2 Da · LogP 1.81 · TPSA 98.1 Open detail RCSB PDB
CBQ PDB via homolog Detail RCSB PDB
DXP PDB via homolog Detail RCSB PDB
IMB PDB via homolog Detail RCSB PDB
SRT 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
C0K RCSB PDB P45568 309.2 Da LogP 1.81 TPSA 98.1 ✓ Ro5 ✓ Clean CN(C(=O)CC[C@@H](c1ccc(c(c1)F)F)P(=O)(O)O)O
CBQ RCSB PDB P45568 302.5 Da LogP 0.79 TPSA 140.0 ✓ Ro5 ✓ Clean c1cc(ncc1Cl)NC(P(=O)(O)O)P(=O)(O)O
DXP RCSB PDB P45568 214.1 Da LogP -1.59 TPSA 124.3 ✓ Ro5 ✓ Clean CC(=O)[C@H]([C@@H](COP(=O)(O)O)O)O
IMB RCSB PDB P45568 318.2 Da LogP 1.29 TPSA 140.0 ✓ Ro5 ✓ Clean c1ccc2c(c1)ccnc2NC(P(=O)(O)O)P(=O)(O)O
SRT RCSB PDB Q8DBF5 150.1 Da LogP -2.12 TPSA 115.1 ✓ Ro5 ✓ Clean [C@H]([C@H](C(=O)O)O)(C(=O)O)O
SYC RCSB PDB P45568 173.1 Da LogP 0.76 TPSA 70.4 ✓ Ro5 ✓ Clean c1ccnc(c1)CP(=O)(O)O
SYE RCSB PDB P45568 223.2 Da LogP 1.91 TPSA 70.4 ✓ Ro5 ✓ Clean c1ccc2c(c1)ccc(n2)CP(=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.