Protein target profile
VK055_1764
galactose-1-phosphate uridylyltransferase
Promising target candidate with multiple supporting evidence streams.
Automated synthesis of the evidence currently loaded. Review the underlying records before prioritizing this protein.
Main supporting evidence
Risks to review
Evidence coverage
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 (%)
- 60.345 Lower values reduce human off-target concern.
- Human E-value
- 2.39e-18
- Gut microbiome similarity
- 3.3% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.
Essentiality
- Essential (DEG)
- Y
- DEG identity (%)
- 68.895 Higher values support similarity to known essential genes.
- DEG E-value
- 0.0 Smaller values mean stronger essential-gene similarity.
Localization
- Localization
- Unknown
Structure confidence
- ColabFold pLDDT
- 95.9 0-100 confidence; >70 supports local structural interpretation.
Binding-site evidence
AlphaFold DB / UniProt modelThe 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.
Cross-references
External database identifiers for this protein, its structures, ligands, and metabolic reactions.
Sequence
Sequence
Primary amino-acid sequence viewer.
MSVFNPVDHPHRRYNPLTGQWILVSPHRAKRPWQGAQETPAKQTLPAHDPDCFLCPGNTRVTGDTNPNYTGTYVFTNDFAALMTDTPDAPESDDPLMRCQSARGTSRVICFSPDHSKTLPELSLEALEDVVKTWQEQTADLGKSYPWVQVFENKGAAMGCSNPHPHGQVWANSFLPNEAEREDRLQKEYYAAQGQPMLLDYVQRELADGSRTVVDTEHWLAVVPYWAAWPFETLLLPKAHVQRITDLTDAQRSDLALALKKLTSRYDNLFQCSFPYSMGWHGAPFNDEDHNHWQLHAHFYPPLLRSATVRKFMVGYEMLAETQRDLTAEQAAERLRAVSDVHFRESGV
Functional annotations
Enzyme classification and Gene Ontology terms linked to this protein.
Enzyme Commission (EC)
1Gene Ontology (GO)
5- GO:0008270 Binding to a zinc ion (Zn).
- GO:0008108 Catalysis of the reaction: alpha-D-galactose 1-phosphate + UDP-D-glucose = alpha-D-glucose 1-phosphate + UDP-D-galactose.
- GO:0006012 The chemical reactions and pathways involving galactose, the aldohexose galacto-hexose. D-galactose is widely distributed in combined form in plants, animals and microorganisms as a constituent of oligo- and polysaccharides; it also occurs in galactolipids and as its glucoside in lactose and melibiose.
- GO:0033499 The chemical reactions and pathways resulting in the breakdown of galactose, via the intermediate UDP-galactose.
- GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
Sequence domains and features
Domain and signature matches imported from InterPro and related databases.
Show feature table
| Start | End | DB | Term | Name |
|---|---|---|---|---|
| 35 | 175 | FunFam | G3DSA:3.30.428.10:FF:000002 | Galactose-1-phosphate uridylyltransferase |
| 11 | 338 | CDD | cd00608 | GalT |
| 11 | 338 | InterPro | IPR001937 | Galactose-1-phosphate uridyl transferase, class I |
| 179 | 345 | SUPERFAMILY | SSF54197 | HIT-like |
| 179 | 345 | InterPro | IPR036265 | HIT-like superfamily |
| 4 | 345 | PANTHER | PTHR11943 | GALACTOSE-1-PHOSPHATE URIDYLYLTRANSFERASE |
| 4 | 345 | InterPro | IPR001937 | Galactose-1-phosphate uridyl transferase, class I |
| 151 | 168 | ProSitePatterns | PS00117 | Galactose-1-phosphate uridyl transferase family 1 active site signature. |
| 151 | 168 | InterPro | IPR019779 | Galactose-1-phosphate uridyl transferase, class I His-active site |
| 35 | 175 | Gene3D | G3DSA:3.30.428.10 | - |
| 35 | 175 | InterPro | IPR036265 | HIT-like superfamily |
| 1 | 341 | PIRSF | PIRSF000808 | GalT |
| 1 | 341 | InterPro | IPR001937 | Galactose-1-phosphate uridyl transferase, class I |
| 4 | 177 | SUPERFAMILY | SSF54197 | HIT-like |
| 4 | 177 | InterPro | IPR036265 | HIT-like superfamily |
| 5 | 176 | Pfam | PF01087 | Galactose-1-phosphate uridyl transferase, N-terminal domain |
| 5 | 176 | InterPro | IPR005849 | Galactose-1-phosphate uridyl transferase, N-terminal |
| 176 | 347 | Gene3D | G3DSA:3.30.428.10 | - |
| 176 | 347 | InterPro | IPR036265 | HIT-like superfamily |
| 2 | 347 | NCBIfam | TIGR00209 | galactose-1-phosphate uridylyltransferase |
| 2 | 347 | InterPro | IPR001937 | Galactose-1-phosphate uridyl transferase, class I |
| 176 | 348 | FunFam | G3DSA:3.30.428.10:FF:000001 | Galactose-1-phosphate uridylyltransferase |
| 183 | 345 | Pfam | PF02744 | Galactose-1-phosphate uridyl transferase, C-terminal domain |
| 183 | 345 | InterPro | IPR005850 | Galactose-1-phosphate uridyl transferase, C-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.
How colors and pocket overlays are used
Pocket details Inspect a specific pocket, or open the full viewer
- Method
- -
- Score
- -
- Visible layer
- -
- Residues
- -
- Pocket properties
- -
Selecting a pocket opens its details and centers the viewer without clearing other active layers. Use Focus this pocket when you want to hide the rest; use Surface for the wider residue environment.
Binding pockets · FPocket
Druggability: high ≥ 0.7 · medium 0.4–0.69 · low < 0.4
Binding pockets · P2Rank
Probability: high ≥ 0.5 · medium 0.2–0.49 · low < 0.2
Residue sets
Binding pockets · FPocket
Druggability: high ≥ 0.7 · medium 0.4–0.69 · low < 0.4
Binding pockets · P2Rank
Probability: high ≥ 0.5 · medium 0.2–0.49 · low < 0.2
Residue sets
All structural evidence
Structural evidence
0 + 2Experimental 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_A0A0H3GQ36
|
AlphaFold DB | — | — | full sequence | — | Viewing |
|
ColabFold
VK055_1764
|
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.
Structural ligand evidence is available for this target.
Highest-confidence structural evidence: ligands co-crystallized with this exact protein. If the source PDB is loaded in Target, use Open crystal to inspect it in the structure viewer.
No PDB structure with a co-crystallized ligand found for this exact protein.
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.
| Ligand | Source crystal | UniProt (homolog) | MW · LogP · TPSA | Lipinski | PAINS | SMILES |
|---|---|---|---|---|---|---|
| ADQ RCSB PDB | Q9FK51 | 589.3 Da LogP -3.92 TPSA 311.7 | 3 viol. | ✓ Clean |
c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…
|
|
| GDU RCSB PDB | P09148 | 566.3 Da LogP -4.79 TPSA 297.0 | 3 viol. | ✓ Clean |
C1=CN(C(=O)NC1=O)[C@H]2[C@@H]([C@@H]([C@H](O2)C…
|
|
| H2U RCSB PDB | P07902-2 | 326.2 Da LogP -2.52 TPSA 165.9 | ✓ Ro5 | ✓ Clean |
C1CN(C(=O)NC1=O)[C@H]2[C@@H]([C@@H]([C@H](O2)CO…
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| UPG RCSB PDB | P09148 | 566.3 Da LogP -4.79 TPSA 297.0 | 3 viol. | ✓ Clean |
C1=CN(C(=O)NC1=O)[C@H]2[C@@H]([C@@H]([C@H](O2)C…
|
Experimental bioactivity from ChEMBL measured directly on this protein. Score = pchembl (−log Ki/IC₅₀; higher = more potent).
No ChEMBL bioactivity data found for this exact protein.
Bioactivity inferred from similar proteins in ChEMBL. Score = pchembl (−log Ki/IC₅₀; higher = more potent).
No ChEMBL hits found through similar proteins.
Proposed virtual-screening candidates from ZINC. Score = Tanimoto similarity to a known binder (0–1; higher = more similar).
| Ligand | Tanimoto | MW · LogP · TPSA | Lipinski | PAINS | SMILES |
|---|---|---|---|---|---|
| ZINC12959005 ZINC | 0.729 | 484.1 Da LogP -2.50 TPSA 264.4 | 2 viol. | ✓ Clean |
O=c1ccn([C@@H]2O[C@H](CO[P@](=O)(O)O[P@](=O)(O)…
|
| ZINC12959016 ZINC | 0.729 | 484.1 Da LogP -2.50 TPSA 264.4 | 2 viol. | ✓ Clean |
O=c1ccn([C@@H]2O[C@@H](CO[P@](=O)(O)O[P@](=O)(O…
|
| ZINC13548378 ZINC | 0.729 | 484.1 Da LogP -2.50 TPSA 264.4 | 2 viol. | ✓ Clean |
O=c1ccn([C@@H]2O[C@H](CO[P@@](=O)(O)O[P@@](=O)(…
|
| ZINC25726233 ZINC | 0.729 | 484.1 Da LogP -2.50 TPSA 264.4 | 2 viol. | ✓ Clean |
O=c1ccn([C@H]2O[C@@H](CO[P@](=O)(O)O[P@](=O)(O)…
|
| ZINC3861755 ZINC | 0.729 | 484.1 Da LogP -2.50 TPSA 264.4 | 2 viol. | ✓ Clean |
O=c1ccn([C@@H]2O[C@H](CO[P@@](=O)(O)O[P@@](=O)(…
|
| ZINC3875255 ZINC | 0.729 | 484.1 Da LogP -2.50 TPSA 264.4 | 2 viol. | ✓ Clean |
O=c1ccn([C@H]2O[C@@H](CO[P@@](=O)(O)O[P@@](=O)(…
|
| ZINC3875256 ZINC | 0.729 | 484.1 Da LogP -2.50 TPSA 264.4 | 2 viol. | ✓ Clean |
O=c1ccn([C@@H]2O[C@@H](CO[P@@](=O)(O)O[P@@](=O)…
|
| ZINC3875257 ZINC | 0.729 | 484.1 Da LogP -2.50 TPSA 264.4 | 2 viol. | ✓ Clean |
O=c1ccn([C@H]2O[C@@H](CO[P@@](=O)(O)O[P@@](=O)(…
|
| ZINC3875258 ZINC | 0.729 | 484.1 Da LogP -2.50 TPSA 264.4 | 2 viol. | ✓ Clean |
O=c1ccn([C@@H]2O[C@@H](CO[P@@](=O)(O)O[P@@](=O)…
|
| ZINC88466482 ZINC | 0.729 | 484.1 Da LogP -2.50 TPSA 264.4 | 2 viol. | ✓ Clean |
O=c1ccn([C@@H]2O[C@H](CO[P@@](=O)(O)O[P@@](=O)(…
|
| ZINC35636069 ZINC | 0.724 | 404.2 Da LogP -2.62 TPSA 217.8 | 1 viol. | ✓ Clean |
O=c1ccn([C@@H]2O[C@H](CO[P@](=O)(O)OP(=O)(O)O)[…
|
| ZINC40655887 ZINC | 0.724 | 404.2 Da LogP -2.62 TPSA 217.8 | 1 viol. | ✓ Clean |
O=c1ccn([C@@H]2O[C@H](CO[P@](=O)(O)OP(=O)(O)O)[…
|
| ZINC40655889 ZINC | 0.724 | 404.2 Da LogP -2.62 TPSA 217.8 | 1 viol. | ✓ Clean |
O=c1ccn([C@@H]2O[C@H](CO[P@@](=O)(O)OP(=O)(O)O)…
|
| ZINC44460318 ZINC | 0.724 | 404.2 Da LogP -2.62 TPSA 217.8 | 1 viol. | ✓ Clean |
O=c1ccn([C@H]2O[C@@H](CO[P@@](=O)(O)OP(=O)(O)O)…
|
| ZINC4490939 ZINC | 0.724 | 404.2 Da LogP -2.62 TPSA 217.8 | 1 viol. | ✓ Clean |
O=c1ccn([C@@H]2O[C@H](CO[P@@](=O)(O)OP(=O)(O)O)…
|
| ZINC8585026 ZINC | 0.724 | 404.2 Da LogP -2.62 TPSA 217.8 | 1 viol. | ✓ Clean |
O=c1ccn([C@H]2O[C@@H](CO[P@@](=O)(O)OP(=O)(O)O)…
|
| ZINC8585028 ZINC | 0.724 | 404.2 Da LogP -2.62 TPSA 217.8 | 1 viol. | ✓ Clean |
O=c1ccn([C@@H]2O[C@@H](CO[P@@](=O)(O)OP(=O)(O)O…
|
| ZINC8585030 ZINC | 0.724 | 404.2 Da LogP -2.62 TPSA 217.8 | 1 viol. | ✓ Clean |
O=c1ccn([C@H]2O[C@@H](CO[P@@](=O)(O)OP(=O)(O)O)…
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| ZINC8585032 ZINC | 0.724 | 404.2 Da LogP -2.62 TPSA 217.8 | 1 viol. | ✓ Clean |
O=c1ccn([C@@H]2O[C@@H](CO[P@@](=O)(O)OP(=O)(O)O…
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| ZINC2069590148 ZINC | 0.711 | 260.2 Da LogP -1.98 TPSA 108.3 | ✓ Ro5 | ✓ Clean |
COC[C@@H]1O[C@H](N2CCC(=O)NC2=O)[C@H](O)[C@H]1O
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| ZINC2069590149 ZINC | 0.711 | 260.2 Da LogP -1.98 TPSA 108.3 | ✓ Ro5 | ✓ Clean |
COC[C@@H]1O[C@H](N2CCC(=O)NC2=O)[C@H](O)[C@@H]1O
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| ZINC2069590150 ZINC | 0.711 | 260.2 Da LogP -1.98 TPSA 108.3 | ✓ Ro5 | ✓ Clean |
COC[C@@H]1O[C@H](N2CCC(=O)NC2=O)[C@@H](O)[C@@H]…
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| ZINC2069590151 ZINC | 0.711 | 260.2 Da LogP -1.98 TPSA 108.3 | ✓ Ro5 | ✓ Clean |
COC[C@@H]1O[C@H](N2CCC(=O)NC2=O)[C@@H](O)[C@H]1O
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| ZINC102211562 ZINC | 0.698 | 490.3 Da LogP -1.89 TPSA 206.8 | 1 viol. | ✓ Clean |
C[N+](C)(C)CCO[P@@](=O)(O)O[P@@](=O)(O)OC[C@H]1…
|
| ZINC110347779 ZINC | 0.698 | 490.3 Da LogP -1.89 TPSA 206.8 | 1 viol. | ✓ Clean |
C[N+](C)(C)CCO[P@@](=O)(O)O[P@@](=O)(O)OC[C@@H]…
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| ZINC110347782 ZINC | 0.698 | 490.3 Da LogP -1.89 TPSA 206.8 | 1 viol. | ✓ Clean |
C[N+](C)(C)CCO[P@@](=O)(O)O[P@@](=O)(O)OC[C@@H]…
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| ZINC97976147 ZINC | 0.698 | 490.3 Da LogP -1.89 TPSA 206.8 | 1 viol. | ✓ Clean |
C[N+](C)(C)CCO[P@@](=O)(O)O[P@@](=O)(O)OC[C@@H]…
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| ZINC4188096 ZINC | 0.661 | 297.3 Da LogP -2.62 TPSA 159.8 | ✓ Ro5 | ✓ Clean |
Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO)[C@@H](O)[C@@H](…
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| ZINC4188103 ZINC | 0.661 | 297.3 Da LogP -2.62 TPSA 159.8 | ✓ Ro5 | ✓ Clean |
Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO)[C@@H](O)[C@@H]…
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| ZINC4188112 ZINC | 0.661 | 297.3 Da LogP -2.62 TPSA 159.8 | ✓ Ro5 | ✓ Clean |
Nc1ncnc2c1ncn2[C@H]1O[C@@H](CO)[C@@H](O)[C@@H](…
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| ZINC4188116 ZINC | 0.661 | 297.3 Da LogP -2.62 TPSA 159.8 | ✓ Ro5 | ✓ Clean |
Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO)[C@@H](O)[C@@H]…
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| ZINC105358861 ZINC | 0.659 | 246.2 Da LogP -2.63 TPSA 119.3 | ✓ Ro5 | ✓ Clean |
O=C1CCN([C@@H]2O[C@H](CO)[C@H](O)[C@@H]2O)C(=O)…
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| ZINC105358865 ZINC | 0.659 | 246.2 Da LogP -2.63 TPSA 119.3 | ✓ Ro5 | ✓ Clean |
O=C1CCN([C@@H]2O[C@H](CO)[C@H](O)[C@H]2O)C(=O)N1
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| ZINC1562565 ZINC | 0.659 | 246.2 Da LogP -2.63 TPSA 119.3 | ✓ Ro5 | ✓ Clean |
O=C1CCN([C@@H]2O[C@H](CO)[C@@H](O)[C@H]2O)C(=O)…
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| ZINC2558628 ZINC | 0.659 | 246.2 Da LogP -2.63 TPSA 119.3 | ✓ Ro5 | ✓ Clean |
O=C1CCN([C@H]2O[C@@H](CO)[C@H](O)[C@@H]2O)C(=O)…
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| ZINC12503831 ZINC | 0.655 | 324.2 Da LogP -2.73 TPSA 171.3 | ✓ Ro5 | ✓ Clean |
O=c1ccn([C@H]2O[C@H](COP(=O)(O)O)[C@H](O)[C@H]2…
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| ZINC12503833 ZINC | 0.655 | 324.2 Da LogP -2.73 TPSA 171.3 | ✓ Ro5 | ✓ Clean |
O=c1ccn([C@H]2O[C@H](COP(=O)(O)O)[C@H](O)[C@@H]…
|
| ZINC13512000 ZINC | 0.655 | 324.2 Da LogP -2.73 TPSA 171.3 | ✓ Ro5 | ✓ Clean |
O=c1ccn([C@@H]2O[C@H](COP(=O)(O)O)[C@H](O)[C@H]…
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| ZINC1532538 ZINC | 0.655 | 324.2 Da LogP -2.73 TPSA 171.3 | ✓ Ro5 | ✓ Clean |
O=c1ccn([C@H]2O[C@@H](COP(=O)(O)O)[C@H](O)[C@@H…
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| ZINC2026984 ZINC | 0.655 | 324.2 Da LogP -2.73 TPSA 171.3 | ✓ Ro5 | ✓ Clean |
O=c1ccn([C@H]2O[C@@H](COP(=O)(O)O)[C@H](O)[C@H]…
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| ZINC2123545 ZINC | 0.655 | 324.2 Da LogP -2.73 TPSA 171.3 | ✓ Ro5 | ✓ Clean |
O=c1ccn([C@@H]2O[C@H](COP(=O)(O)O)[C@@H](O)[C@H…
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| ZINC2606131 ZINC | 0.655 | 324.2 Da LogP -2.73 TPSA 171.3 | ✓ Ro5 | ✓ Clean |
O=c1ccn([C@@H]2O[C@H](COP(=O)(O)O)[C@@H](O)[C@@…
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| ZINC36377965 ZINC | 0.655 | 324.2 Da LogP -2.73 TPSA 171.3 | ✓ Ro5 | ✓ Clean |
O=c1ccn([C@@H]2O[C@H](COP(=O)(O)O)[C@H](O)[C@@H…
|
| ZINC3870257 ZINC | 0.655 | 324.2 Da LogP -2.73 TPSA 171.3 | ✓ Ro5 | ✓ Clean |
O=c1ccn([C@H]2O[C@@H](COP(=O)(O)O)[C@@H](O)[C@H…
|
| ZINC3870258 ZINC | 0.655 | 324.2 Da LogP -2.73 TPSA 171.3 | ✓ Ro5 | ✓ Clean |
O=c1ccn([C@@H]2O[C@@H](COP(=O)(O)O)[C@@H](O)[C@…
|
| ZINC3870259 ZINC | 0.655 | 324.2 Da LogP -2.73 TPSA 171.3 | ✓ Ro5 | ✓ Clean |
O=c1ccn([C@H]2O[C@@H](COP(=O)(O)O)[C@@H](O)[C@@…
|
| ZINC3870260 ZINC | 0.655 | 324.2 Da LogP -2.73 TPSA 171.3 | ✓ Ro5 | ✓ Clean |
O=c1ccn([C@@H]2O[C@@H](COP(=O)(O)O)[C@@H](O)[C@…
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| ZINC9235501 ZINC | 0.655 | 324.2 Da LogP -2.73 TPSA 171.3 | ✓ Ro5 | ✓ Clean |
O=c1ccn([C@@H]2O[C@@H](COP(=O)(O)O)[C@H](O)[C@H…
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| ZINC3201878 ZINC | 0.644 | 267.2 Da LogP -1.98 TPSA 139.5 | ✓ Ro5 | ✓ Clean |
Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO)[C@@H](O)[C@@H]…
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| ZINC3830179 ZINC | 0.644 | 267.2 Da LogP -1.98 TPSA 139.5 | ✓ Ro5 | ✓ Clean |
Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CO)[C@@H](O)[C@H]1O
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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.