FAIRMol

Z16027953

Pose ID 3789 Compound 547 Pose 403

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 Z16027953
PDB8RHT

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Weak or marginal quality
Binding strong Geometry high Native strong SASA done
Strain ΔE
25.7 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.67, Jaccard 0.61, H-bond role recall 0.00
Burial
94%
Hydrophobic fit
77%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.504 kcal/mol/HA) ✓ Good fit quality (FQ -4.81) ✓ Good H-bonds (4 bonds) ✓ Deep burial (94% SASA buried) ✓ Lipophilic contacts well-matched (77%) ✗ High strain energy (25.7 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (15)
Score
-14.625
kcal/mol
LE
-0.504
kcal/mol/HA
Fit Quality
-4.81
FQ (Leeson)
HAC
29
heavy atoms
MW
394
Da
LogP
2.53
cLogP
Strain ΔE
25.7 kcal/mol
SASA buried
94%
Lipo contact
77% BSA apolar/total
SASA unbound
639 Ų
Apolar buried
461 Ų

Interaction summary

HB 4 HY 24 PI 3 CLASH 2

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 rank1.071Score-14.625
Inter norm-0.836Intra norm0.290
Top1000noExcludedno
Contacts16H-bonds4
Artifact reasongeometry warning; 15 clashes; 2 protein contact clashes; moderate strain Δ 25.7
Residues
ALA34 ARG59 ASP54 GLN56 ILE160 ILE47 LEU90 LEU97 MET55 NDP301 PHE58 PHE94 PRO91 TYR166 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 overlap14Native recall0.67
Jaccard0.61RMSD-
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
403 1.071475001931634 -0.836178 -14.6246 4 16 14 0.67 0.00 - no Current
389 2.6962579124119785 -1.03911 -20.7889 8 20 0 0.00 0.00 - no Open
382 3.1225805765747747 -1.07129 -19.5439 6 19 0 0.00 0.00 - no Open
483 3.162700273375776 -0.922523 -20.4046 10 18 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 -14.625kcal/mol
Ligand efficiency (LE) -0.5043kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -4.814
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 394.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.53
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 25.74kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 63.57kcal/mol
Minimised FF energy 37.82kcal/mol

SASA & burial

✓ computed
SASA (unbound) 639.0Ų
Total solvent-accessible surface area of free ligand
BSA total 600.2Ų
Buried surface area upon binding
BSA apolar 461.0Ų
Hydrophobic contacts buried
BSA polar 139.2Ų
Polar contacts buried
Fraction buried 93.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 76.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1726.5Ų
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 575.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)