FAIRMol

KB_HAT_89

Pose ID 3479 Compound 2596 Pose 93

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_89
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
44.5 kcal/mol
Protein clashes
7
Internal clashes
7
Native overlap
contact recall 0.81, Jaccard 0.71, H-bond role recall 0.25
Burial
96%
Hydrophobic fit
86%
Reason: 7 internal clashes, strain 44.5 kcal/mol
strain ΔE 44.5 kcal/mol 7 protein-contact clashes 7 intramolecular clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Not classified (>100 mg/L)
Daphnia EC₅₀
Not classified (>100 mg/L)
Algae IC₅₀
Not classified (>100 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Low Ames Clear DILI Low
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.706 kcal/mol/HA) ✓ Good fit quality (FQ -6.88) ✓ Deep burial (96% SASA buried) ✓ Lipophilic contacts well-matched (86%) ✗ Extreme strain energy (44.5 kcal/mol) ✗ No H-bonds detected ✗ Geometry warnings ✗ Protein-contact clashes (7) ✗ Many internal clashes (15)
Score
-21.896
kcal/mol
LE
-0.706
kcal/mol/HA
Fit Quality
-6.88
FQ (Leeson)
HAC
31
heavy atoms
MW
442
Da
LogP
1.54
cLogP
Final rank
2.0201
rank score
Inter norm
-0.727
normalised
Contacts
20
H-bonds 1
Strain ΔE
44.5 kcal/mol
SASA buried
96%
Lipo contact
86% BSA apolar/total
SASA unbound
703 Ų
Apolar buried
582 Ų

Interaction summary

HB 0 HY 11 PI 3 CLASH 7

HBD/HBA · H-bonds (geometric)

No hbd/hba · h-bonds (geometric) detected for this pose.

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
Jaccard0.71RMSD-
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
93 2.0200869015765606 -0.726748 -21.8962 1 20 17 0.81 0.25 - 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 -21.896kcal/mol
Ligand efficiency (LE) -0.7063kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.881
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 31HA

Physicochemical properties

Molecular weight 441.9Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.54
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 44.46kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 68.14kcal/mol
Minimised FF energy 23.68kcal/mol

SASA & burial

✓ computed
SASA (unbound) 702.7Ų
Total solvent-accessible surface area of free ligand
BSA total 677.0Ų
Buried surface area upon binding
BSA apolar 581.9Ų
Hydrophobic contacts buried
BSA polar 95.1Ų
Polar contacts buried
Fraction buried 96.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 85.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1824.2Ų
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 591.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)