FAIRMol

KB_HAT_48

Pose ID 3476 Compound 612 Pose 90

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 KB_HAT_48
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
43.0 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.71, Jaccard 0.65, H-bond role recall 0.00
Burial
94%
Hydrophobic fit
85%
Reason: strain 43.0 kcal/mol
strain ΔE 43.0 kcal/mol 3 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.705 kcal/mol/HA) ✓ Good fit quality (FQ -6.57) ✓ Deep burial (94% SASA buried) ✓ Lipophilic contacts well-matched (85%) ✗ Extreme strain energy (43.0 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (4) ✗ Internal clashes (6)
Score
-19.027
kcal/mol
LE
-0.705
kcal/mol/HA
Fit Quality
-6.57
FQ (Leeson)
HAC
27
heavy atoms
MW
378
Da
LogP
2.27
cLogP
Final rank
0.6549
rank score
Inter norm
-0.881
normalised
Contacts
17
H-bonds 1
Strain ΔE
43.0 kcal/mol
SASA buried
94%
Lipo contact
85% BSA apolar/total
SASA unbound
620 Ų
Apolar buried
498 Ų

Interaction summary

HBD 1 HY 8 PI 3 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
Jaccard0.65RMSD-
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
90 0.6549454482699935 -0.880775 -19.0266 1 17 15 0.71 0.00 - no Current
82 2.115799105837312 -0.96092 -21.6892 8 18 1 0.05 0.00 - no Open
110 2.157739248342636 -1.02465 -23.7054 6 18 0 0.00 0.00 - no Open
118 3.834897849121681 -0.956667 -23.9739 9 19 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 -19.027kcal/mol
Ligand efficiency (LE) -0.7047kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.574
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 378.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.27
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 42.99kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 54.23kcal/mol
Minimised FF energy 11.25kcal/mol

SASA & burial

✓ computed
SASA (unbound) 619.9Ų
Total solvent-accessible surface area of free ligand
BSA total 583.7Ų
Buried surface area upon binding
BSA apolar 498.2Ų
Hydrophobic contacts buried
BSA polar 85.5Ų
Polar contacts buried
Fraction buried 94.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 85.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1756.1Ų
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 579.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)