FAIRMol

Z49718975

Pose ID 7883 Compound 2096 Pose 431

DB fairmolDocking 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 Z49718975
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 medium Native strong SASA done
Strain ΔE
12.5 kcal/mol
Protein clashes
5
Internal clashes
5
Native overlap
contact recall 1.00, Jaccard 0.94, H-bond role recall 0.50
Burial
86%
Hydrophobic fit
70%
Reason: no major geometry red flags detected
5 protein-contact clashes 5 intramolecular clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.609 kcal/mol/HA) ✓ Good fit quality (FQ -12.90) ✓ Strong H-bond network (12 bonds) ✓ Deep burial (86% SASA buried) ✓ Lipophilic contacts well-matched (70%) ✗ Moderate strain (12.5 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (6)
Score
-28.965
kcal/mol
LE
-1.609
kcal/mol/HA
Fit Quality
-12.90
FQ (Leeson)
HAC
18
heavy atoms
MW
265
Da
LogP
1.99
cLogP
Strain ΔE
12.5 kcal/mol
SASA buried
86%
Lipo contact
70% BSA apolar/total
SASA unbound
470 Ų
Apolar buried
281 Ų

Interaction summary

HB 12 HY 6 PI 4 CLASH 5

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

Final rank3.206Score-28.965
Inter norm-1.552Intra norm-0.057
Top1000noExcludedno
Contacts17H-bonds12
Artifact reasongeometry warning; 6 clashes; 2 protein clashes
Residues
ARG140 ARG144 ASN106 HIS105 HIS141 MET101 ARG46 ASP13 CYS72 GLY73 GLY75 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 overlap16Native recall1.00
Jaccard0.94RMSD-
HB strict7Strict recall0.58
HB same residue+role5HB role recall0.50
HB same residue5HB residue recall0.50

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
432 1.50916021506044 -1.60024 -25.7335 8 20 0 0.00 0.00 - no Open
405 1.7998442543703592 -2.02521 -38.4745 9 11 0 0.00 0.00 - no Open
527 2.5271626374165113 -1.36405 -20.2563 5 12 0 0.00 0.00 - no Open
431 3.2058566580264554 -1.55184 -28.9653 12 17 16 1.00 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 -28.965kcal/mol
Ligand efficiency (LE) -1.6092kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.896
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 18HA

Physicochemical properties

Molecular weight 264.7Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.99
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 12.51kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 99.07kcal/mol
Minimised FF energy 86.56kcal/mol

SASA & burial

✓ computed
SASA (unbound) 470.3Ų
Total solvent-accessible surface area of free ligand
BSA total 402.7Ų
Buried surface area upon binding
BSA apolar 281.3Ų
Hydrophobic contacts buried
BSA polar 121.4Ų
Polar contacts buried
Fraction buried 85.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 69.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2019.1Ų
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 2454.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 784.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)