FAIRMol

KB_Leish_43

Pose ID 3505 Compound 1711 Pose 119

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_Leish_43
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
25.4 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.81, Jaccard 0.74, H-bond role recall 0.50
Burial
97%
Hydrophobic fit
88%
Reason: no major geometry red flags detected
2 protein-contact 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 Low
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.861 kcal/mol/HA) ✓ Good fit quality (FQ -8.12) ✓ Deep burial (97% SASA buried) ✓ Lipophilic contacts well-matched (88%) ✗ High strain energy (25.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (13)
Score
-24.097
kcal/mol
LE
-0.861
kcal/mol/HA
Fit Quality
-8.12
FQ (Leeson)
HAC
28
heavy atoms
MW
376
Da
LogP
3.93
cLogP
Final rank
2.4527
rank score
Inter norm
-0.887
normalised
Contacts
19
H-bonds 2
Strain ΔE
25.4 kcal/mol
SASA buried
97%
Lipo contact
88% BSA apolar/total
SASA unbound
640 Ų
Apolar buried
548 Ų

Interaction summary

HBD 1 HY 11 PI 3 CLASH 2

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 overlap17Native recall0.81
Jaccard0.74RMSD-
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
67 0.6839298484108537 -0.892848 -24.6089 6 13 0 0.00 0.00 - no Open
98 1.384836905943337 -0.876783 -22.6605 8 16 0 0.00 0.00 - no Open
148 2.1414781620911882 -1.14509 -29.7802 3 20 0 0.00 0.00 - no Open
119 2.4527390145860295 -0.886636 -24.0974 2 19 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 -24.097kcal/mol
Ligand efficiency (LE) -0.8606kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.125
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 28HA

Physicochemical properties

Molecular weight 376.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.93
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 25.43kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 104.77kcal/mol
Minimised FF energy 79.34kcal/mol

SASA & burial

✓ computed
SASA (unbound) 639.6Ų
Total solvent-accessible surface area of free ligand
BSA total 619.9Ų
Buried surface area upon binding
BSA apolar 547.9Ų
Hydrophobic contacts buried
BSA polar 71.9Ų
Polar contacts buried
Fraction buried 96.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 88.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1800.2Ų
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 576.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)