FAIRMol

Z56798284

Pose ID 3792 Compound 688 Pose 406

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 Z56798284
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
49.1 kcal/mol
Protein clashes
2
Internal clashes
3
Native overlap
contact recall 0.71, Jaccard 0.62, H-bond role recall 0.00
Burial
92%
Hydrophobic fit
84%
Reason: strain 49.1 kcal/mol
strain ΔE 49.1 kcal/mol 2 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.442 kcal/mol/HA) ✓ Good fit quality (FQ -4.26) ✓ Deep burial (92% SASA buried) ✓ Lipophilic contacts well-matched (84%) ✗ Extreme strain energy (49.1 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (13)
Score
-13.244
kcal/mol
LE
-0.442
kcal/mol/HA
Fit Quality
-4.26
FQ (Leeson)
HAC
30
heavy atoms
MW
396
Da
LogP
5.00
cLogP
Final rank
0.9151
rank score
Inter norm
-0.837
normalised
Contacts
18
H-bonds 3
Strain ΔE
49.1 kcal/mol
SASA buried
92%
Lipo contact
84% BSA apolar/total
SASA unbound
688 Ų
Apolar buried
532 Ų

Interaction summary

HBD 1 HY 9 PI 4 CLASH 3

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 1.

PI · π–π interactions

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

HY · Hydrophobic contacts

CLASH · Clashes

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: permissive.
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 overlap15Native recall0.71
Jaccard0.62RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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
479 0.6279445494347249 -0.84408 -21.9705 3 20 0 0.00 0.00 - no Open
406 0.915129823933346 -0.83686 -13.244 3 18 15 0.71 0.00 - no Current
449 1.908233052533173 -0.74441 -18.4215 2 15 0 0.00 0.00 - no Open
431 4.433335430960952 -0.660659 -19.3115 7 13 0 0.00 0.00 - no Open
468 4.754749031571437 -0.756172 -19.9896 9 16 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 -13.244kcal/mol
Ligand efficiency (LE) -0.4415kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -4.259
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 396.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.00
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 49.08kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 119.83kcal/mol
Minimised FF energy 70.75kcal/mol

SASA & burial

✓ computed
SASA (unbound) 687.7Ų
Total solvent-accessible surface area of free ligand
BSA total 634.1Ų
Buried surface area upon binding
BSA apolar 531.6Ų
Hydrophobic contacts buried
BSA polar 102.5Ų
Polar contacts buried
Fraction buried 92.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 83.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1805.9Ų
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 587.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)