FAIRMol

ulfkktlib_1159

Pose ID 3569 Compound 2521 Pose 183

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 ulfkktlib_1159
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
Likely artefact or unreliable pose
Binding strong Geometry medium Native strong SASA done
Strain ΔE
32.5 kcal/mol
Protein clashes
4
Internal clashes
5
Native overlap
contact recall 0.81, Jaccard 0.77, H-bond role recall 0.50
Burial
100%
Hydrophobic fit
93%
Reason: no major geometry red flags detected
4 protein-contact clashes 5 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.925 kcal/mol/HA) ✓ Good fit quality (FQ -7.89) ✓ Good H-bonds (5 bonds) ✓ Deep burial (100% SASA buried) ✓ Lipophilic contacts well-matched (93%) ✗ Very high strain energy (32.5 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (9) ✗ Internal clashes (8)
Score
-19.427
kcal/mol
LE
-0.925
kcal/mol/HA
Fit Quality
-7.89
FQ (Leeson)
HAC
21
heavy atoms
MW
279
Da
LogP
1.98
cLogP
Final rank
1.3450
rank score
Inter norm
-1.146
normalised
Contacts
18
H-bonds 6
Strain ΔE
32.5 kcal/mol
SASA buried
100%
Lipo contact
93% BSA apolar/total
SASA unbound
513 Ų
Apolar buried
479 Ų

Interaction summary

HBD 5 HY 8 PI 2 CLASH 5

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 5.

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: 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
Jaccard0.77RMSD-
HB strict2Strict recall0.40
HB same residue+role2HB role recall0.50
HB same residue2HB residue recall0.50

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
201 0.7182823670119411 -1.543 -31.3513 5 16 0 0.00 0.00 - no Open
183 1.345034658145995 -1.14631 -19.4265 6 18 17 0.81 0.50 - no Current

Molecular metrics

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

Scoring & efficiency

Docking score -19.427kcal/mol
Ligand efficiency (LE) -0.9251kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.891
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 21HA

Physicochemical properties

Molecular weight 279.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.98
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 32.53kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 55.06kcal/mol
Minimised FF energy 22.53kcal/mol

SASA & burial

✓ computed
SASA (unbound) 512.8Ų
Total solvent-accessible surface area of free ligand
BSA total 512.4Ų
Buried surface area upon binding
BSA apolar 478.7Ų
Hydrophobic contacts buried
BSA polar 33.6Ų
Polar contacts buried
Fraction buried 99.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 93.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1693.7Ų
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 594.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)