FAIRMol

Z68347496

Pose ID 3926 Compound 1425 Pose 540

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T06
T. brucei DHFR T. brucei
Ligand Z68347496
PDB8RHT

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
58.3 kcal/mol
Protein clashes
6
Internal clashes
7
Native overlap
contact recall 0.81, Jaccard 0.74, H-bond role recall 0.50
Burial
97%
Hydrophobic fit
77%
Reason: 7 internal clashes, strain 58.3 kcal/mol
strain ΔE 58.3 kcal/mol 6 protein-contact clashes 7 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.748 kcal/mol/HA) ✓ Good fit quality (FQ -7.21) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (97% SASA buried) ✓ Lipophilic contacts well-matched (77%) ✗ Extreme strain energy (58.3 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (8) ✗ Many internal clashes (13)
Score
-22.437
kcal/mol
LE
-0.748
kcal/mol/HA
Fit Quality
-7.21
FQ (Leeson)
HAC
30
heavy atoms
MW
425
Da
LogP
2.58
cLogP
Strain ΔE
58.3 kcal/mol
SASA buried
97%
Lipo contact
77% BSA apolar/total
SASA unbound
669 Ų
Apolar buried
498 Ų

Interaction summary

HB 9 HY 24 PI 4 CLASH 7

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

Final rank2.016Score-22.437
Inter norm-0.847Intra norm0.099
Top1000noExcludedno
Contacts19H-bonds9
Artifact reasongeometry warning; 13 clashes; 8 protein contact clashes; 1 cofactor-context clash; high strain Δ 58.3
Residues
ALA34 ARG100 ARG59 ASP54 ILE160 ILE47 LEU90 LEU97 MET55 NDP301 PHE233 PHE58 PHE94 PRO91 THR184 TYR166 TYR57 VAL32 VAL33

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name8RHTContacts21
PoseOpen native poseHB0
IFP residues
ALA34 ASP54 HIS182 ILE160 ILE47 LEU90 LEU97 MET55 NDP301 PHE233 PHE58 PHE94 PRO91 SER89 THR184 THR86 TRP49 TYR166 TYR57 VAL32 VAL33
Current overlap17Native recall0.81
Jaccard0.74RMSD-
HB strict2Strict recall0.40
HB same residue+role2HB role recall0.50
HB same residue3HB residue recall0.75

Protein summary

223 residues
Protein targetT06Atoms3452
Residues223Chains1
Residue summaryARG:408; VAL:352; LYS:308; LEU:304; PRO:238; ILE:209; GLU:195; THR:182; SER:176; ALA:160; PHE:140; ASN:126; GLY:126; ASP:108; GLN:85; NDP:74

Receptor context

1 kept / 0 excluded
Receptor context filtering: interactions and SASA are computed against protein atoms plus allowed cofactors/ions. Native ligand-like HETATM partners are excluded from scoring.
Kept context 1 Excluded HETATM 0
Kept cofactors / ions
A:NDP301

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
551 0.7863990384040856 -1.0689 -34.3256 10 13 0 0.00 0.00 - no Open
540 2.01639219542086 -0.846568 -22.4366 9 19 17 0.81 0.50 - no Current
597 2.6257543792701297 -0.791858 -27.3268 6 16 0 0.00 0.00 - no Open
552 2.841916052752017 -1.32572 -41.1595 11 19 0 0.00 0.00 - no Open
543 2.925843509730519 -1.38782 -43.7879 9 19 0 0.00 0.00 - no Open
577 3.073966426611157 -0.901 -28.5624 12 17 0 0.00 0.00 - no Open
554 3.391884301661245 -0.86851 -30.1896 8 19 1 0.05 0.00 - no Open
566 3.7897586704157433 -0.890481 -21.4571 10 12 0 0.00 0.00 - no Open
571 4.379321273351954 -0.866284 -27.1145 5 17 0 0.00 0.00 - no Open
577 4.446355622158319 -0.795751 -23.7085 6 19 0 0.00 0.00 - no Open
556 4.761776816752896 -0.850102 -27.284 9 14 0 0.00 0.00 - no Open
566 4.827703850716491 -1.36608 -35.1918 12 19 0 0.00 0.00 - no Open
581 5.166757877468878 -0.708586 -24.5919 8 14 0 0.00 0.00 - no Open

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -22.437kcal/mol
Ligand efficiency (LE) -0.7479kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.214
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 425.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.58
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 58.31kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 118.85kcal/mol
Minimised FF energy 60.54kcal/mol

SASA & burial

✓ computed
SASA (unbound) 669.2Ų
Total solvent-accessible surface area of free ligand
BSA total 646.6Ų
Buried surface area upon binding
BSA apolar 498.4Ų
Hydrophobic contacts buried
BSA polar 148.3Ų
Polar contacts buried
Fraction buried 96.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 77.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1751.6Ų
SASA_nonpolar(complex) − SASA_nonpolar(receptor) − SASA_nonpolar(ligand free). Negative = non-polar surface buried upon binding. Requires full polarity-decomposed SASA computation.
Receptor non-polar SASA 1808.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 577.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)