FAIRMol

KB_HAT_50

Pose ID 3477 Compound 2480 Pose 91

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_50
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
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
23.8 kcal/mol
Protein clashes
4
Internal clashes
6
Native overlap
contact recall 0.62, Jaccard 0.52, H-bond role recall 0.25
Burial
91%
Hydrophobic fit
80%
Reason: 6 internal clashes
4 protein-contact clashes 6 intramolecular clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Daphnia EC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Algae IC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Medium Ames Clear DILI Risk
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.566 kcal/mol/HA) ✓ Good fit quality (FQ -5.40) ✓ Deep burial (91% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ High strain energy (23.8 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (6) ✗ Internal clashes (7)
Score
-16.416
kcal/mol
LE
-0.566
kcal/mol/HA
Fit Quality
-5.40
FQ (Leeson)
HAC
29
heavy atoms
MW
407
Da
LogP
4.07
cLogP
Final rank
1.0470
rank score
Inter norm
-0.803
normalised
Contacts
17
H-bonds 5
Strain ΔE
23.8 kcal/mol
SASA buried
91%
Lipo contact
80% BSA apolar/total
SASA unbound
700 Ų
Apolar buried
505 Ų

Interaction summary

HBD 2 HY 8 PI 3 CLASH 6

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 2.

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 overlap13Native recall0.62
Jaccard0.52RMSD-
HB strict1Strict recall0.20
HB same residue+role1HB role recall0.25
HB same residue1HB residue recall0.25

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
91 1.047021206695169 -0.80307 -16.4159 5 17 13 0.62 0.25 - no Current
127 2.650789538068895 -0.779733 -18.8298 5 15 0 0.00 0.00 - no Open
75 3.464083917137315 -0.794472 -17.9347 4 14 0 0.00 0.00 - no Open
106 3.990311897544486 -0.806304 -17.0638 7 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 -16.416kcal/mol
Ligand efficiency (LE) -0.5661kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.404
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 406.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.07
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 23.82kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -4.40kcal/mol
Minimised FF energy -28.21kcal/mol

SASA & burial

✓ computed
SASA (unbound) 699.7Ų
Total solvent-accessible surface area of free ligand
BSA total 634.1Ų
Buried surface area upon binding
BSA apolar 504.5Ų
Hydrophobic contacts buried
BSA polar 129.6Ų
Polar contacts buried
Fraction buried 90.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1793.1Ų
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 581.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)