FAIRMol

Z85918290

Pose ID 7915 Compound 1790 Pose 463

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 Z85918290
PDB6FXS

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising SASA cached
Promising and worth follow-up
Binding strong Geometry high Native strong SASA done
Strain ΔE
14.5 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.88, Jaccard 0.82, H-bond role recall 0.40
Burial
74%
Hydrophobic fit
51%
Reason: no major geometry red flags detected
2 protein-contact clashes 50% of hydrophobic surface appears solvent-exposed (6/12 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.409 kcal/mol/HA) ✓ Good fit quality (FQ -12.02) ✓ Strong H-bond network (15 bonds) ✓ Deep burial (74% SASA buried) ✗ Moderate strain (14.5 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (5)
Score
-29.587
kcal/mol
LE
-1.409
kcal/mol/HA
Fit Quality
-12.02
FQ (Leeson)
HAC
21
heavy atoms
MW
336
Da
LogP
3.17
cLogP
Strain ΔE
14.5 kcal/mol
SASA buried
74%
Lipo contact
51% BSA apolar/total
SASA unbound
558 Ų
Apolar buried
211 Ų

Interaction summary

HB 15 HY 5 PI 4 CLASH 2 ⚠ Exposure 50%

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

⚠️Partial hydrophobic solvent exposure
50% of hydrophobic surface appears solvent-exposed (6/12 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 12 Buried (contacted) 6 Exposed 6 LogP 3.17 H-bonds 15
Exposed fragments: phenyl (6/6 atoms exposed)
Final rank3.059Score-29.587
Inter norm-1.412Intra norm0.003
Top1000noExcludedno
Contacts15H-bonds15
Artifact reasongeometry warning; 5 clashes; 2 protein clashes
Residues
ARG140 ARG144 ASN106 HIS105 HIS141 MET101 ARG46 CYS72 GLY73 GLY77 HIS14 ILE15 ILE76 SER74 TYR49

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
Jaccard0.82RMSD-
HB strict6Strict recall0.50
HB same residue+role4HB role recall0.40
HB same residue4HB residue recall0.40

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
477 1.2806331746919208 -1.13671 -19.6294 2 11 0 0.00 0.00 - no Open
463 3.058678673851617 -1.41192 -29.5873 15 15 14 0.88 0.40 - no Current
468 4.0799659503146675 -1.435 -28.6412 11 14 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 -29.587kcal/mol
Ligand efficiency (LE) -1.4089kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.018
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 21HA

Physicochemical properties

Molecular weight 336.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.17
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 14.49kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 29.71kcal/mol
Minimised FF energy 15.22kcal/mol

SASA & burial

✓ computed
SASA (unbound) 558.2Ų
Total solvent-accessible surface area of free ligand
BSA total 415.8Ų
Buried surface area upon binding
BSA apolar 210.7Ų
Hydrophobic contacts buried
BSA polar 205.2Ų
Polar contacts buried
Fraction buried 74.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 50.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2008.6Ų
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 787.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)