FAIRMol

Z49894309

Pose ID 10756 Compound 2288 Pose 591

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T16
T. brucei TR (Dimer interface (site 2)) T. brucei Dimer interface (site 2)
Ligand Z49894309
PDB6RB5

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 mixed SASA done
Strain ΔE
13.1 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.50, Jaccard 0.35
Burial
66%
Hydrophobic fit
75%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.932 kcal/mol/HA) ✓ Good fit quality (FQ -8.47) ✓ Good H-bonds (5 bonds) ✓ Deep burial (66% SASA buried) ✓ Lipophilic contacts well-matched (75%) ✗ Moderate strain (13.1 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-23.303
kcal/mol
LE
-0.932
kcal/mol/HA
Fit Quality
-8.47
FQ (Leeson)
HAC
25
heavy atoms
MW
354
Da
LogP
3.73
cLogP
Final rank
4.2749
rank score
Inter norm
-0.943
normalised
Contacts
11
H-bonds 7
Strain ΔE
13.1 kcal/mol
SASA buried
66%
Lipo contact
75% BSA apolar/total
SASA unbound
589 Ų
Apolar buried
295 Ų

Interaction summary

HBD 1 HBA 4 HY 5 PI 0 CLASH 1

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 3.

PI · π–π interactions

No pi · π–π interactions detected for this pose.

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.
Name6RB5Contacts12
PoseOpen native poseHB0
IFP residues
ALA90 ARG74 GLY85 LEU73 LYS89 MET70 PHE83 PRO212 PRO213 SER86 SER87 VAL88
Current overlap6Native recall0.50
Jaccard0.35RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

Protein summary

493 residues
Protein targetT16Atoms7551
Residues493Chains1
Residue summaryVAL:768; LYS:704; LEU:703; ILE:532; GLU:450; THR:434; ARG:408; PHE:400; ALA:390; ASN:350; PRO:350; GLY:336; SER:319; TYR:294; ASP:276; MET:221

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:FAD501

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
574 1.1312051985470015 -0.939435 -19.2616 2 15 0 0.00 - - no Open
576 1.7780358649461194 -1.28763 -30.539 5 16 0 0.00 - - no Open
602 2.0507560126483133 -1.01307 -21.9618 11 15 0 0.00 - - no Open
600 2.1388450417912015 -0.969677 -24.1377 7 14 0 0.00 - - no Open
571 3.941488146223378 -1.11702 -30.045 6 14 0 0.00 - - no Open
573 4.1861124646984695 -1.10317 -24.9592 7 13 0 0.00 - - no Open
591 4.274920705282722 -0.942757 -23.3028 7 11 6 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 -23.303kcal/mol
Ligand efficiency (LE) -0.9321kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.474
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties

Molecular weight 354.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.73
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 13.06kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 59.14kcal/mol
Minimised FF energy 46.08kcal/mol

SASA & burial

✓ computed
SASA (unbound) 589.0Ų
Total solvent-accessible surface area of free ligand
BSA total 391.7Ų
Buried surface area upon binding
BSA apolar 294.5Ų
Hydrophobic contacts buried
BSA polar 97.2Ų
Polar contacts buried
Fraction buried 66.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 75.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3060.3Ų
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 4076.6Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1462.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)