FAIRMol

ulfkktlib_339

Pose ID 7576 Compound 1540 Pose 124

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T12
T. brucei R5P T. brucei
Ligand ulfkktlib_339
PDB6FXS

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
43.1 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.88, Jaccard 0.67, H-bond role recall 0.60
Burial
93%
Hydrophobic fit
65%
Reason: strain 43.1 kcal/mol
strain ΔE 43.1 kcal/mol 3 protein-contact clashes 3 intramolecular clashes
EcoTox / ADMET GDS: UNSAFE UL GreenDrugScore ML model
ECOscore
0.923
aquatic tox · BCF · biodeg.
GDS₃ (3-block)
0.635
ADMET + ECO + DL
ADMETscore (GDS)
0.659
absorption · distr. · metab.
DLscore
0.423
drug-likeness
P(SAFE)
0.24
GDS classification
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 (-1.007 kcal/mol/HA) ✓ Good fit quality (FQ -8.43) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (93% SASA buried) ✓ Lipophilic contacts well-matched (65%) ✗ Extreme strain energy (43.1 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (5)
Score
-20.137
kcal/mol
LE
-1.007
kcal/mol/HA
Fit Quality
-8.43
FQ (Leeson)
HAC
20
heavy atoms
MW
305
Da
LogP
-2.11
cLogP
Final rank
3.1724
rank score
Inter norm
-1.400
normalised
Contacts
19
H-bonds 15
Strain ΔE
43.1 kcal/mol
SASA buried
93%
Lipo contact
65% BSA apolar/total
SASA unbound
462 Ų
Apolar buried
279 Ų

Interaction summary

HBD 4 HBA 4 HY 3 PI 3 CLASH 3

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 7.

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.
Name6FXSContacts16
PoseOpen native poseHB0
IFP residues
ARG140 ARG144 ASN106 HIS105 HIS141 ARG46 ASP13 CYS72 GLY73 GLY75 GLY77 HIS14 ILE15 ILE76 SER74 TYR49
Current overlap14Native recall0.88
Jaccard0.67RMSD-
HB strict6Strict recall0.50
HB same residue+role6HB role recall0.60
HB same residue6HB residue recall0.60

Protein summary

302 residues
Protein targetT12Atoms4598
Residues302Chains2
Residue summaryARG:576; ILE:456; VAL:448; GLU:360; ALA:340; LEU:304; TYR:252; HIS:204; PRO:196; THR:196; GLY:182; LYS:176; ASP:168; PHE:160; MET:153; SER:121

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:CSD72

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
92 -0.27488169405600155 -1.23978 -26.4643 11 12 0 0.00 0.00 - no Open
136 2.6826692841091115 -1.97334 -36.3274 16 15 0 0.00 0.00 - no Open
133 2.8727048910606037 -1.53924 -31.1406 7 13 0 0.00 0.00 - no Open
207 3.038856002369936 -1.16176 -18.4277 9 12 0 0.00 0.00 - no Open
117 3.1221365776763337 -1.4511 -25.135 13 15 0 0.00 0.00 - no Open
124 3.1723629671495166 -1.40024 -20.1365 15 19 14 0.88 0.60 - no Current
165 3.7635505504674556 -1.53162 -25.3456 16 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 -20.137kcal/mol
Ligand efficiency (LE) -1.0068kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.425
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 20HA

Physicochemical properties

Molecular weight 304.7Da
Lipinski: ≤ 500 Da
LogP (cLogP) -2.11
Lipinski: ≤ 5
Rotatable bonds 10

Conformational strain (MMFF94s)

Strain energy (ΔE) 43.06kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 123.44kcal/mol
Minimised FF energy 80.38kcal/mol

SASA & burial

✓ computed
SASA (unbound) 461.8Ų
Total solvent-accessible surface area of free ligand
BSA total 428.8Ų
Buried surface area upon binding
BSA apolar 279.0Ų
Hydrophobic contacts buried
BSA polar 149.8Ų
Polar contacts buried
Fraction buried 92.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 65.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2009.2Ų
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 2454.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 757.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)