FAIRMol

Z151832316

Pose ID 12170 Compound 128 Pose 649

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T18
T. brucei TR (Mepacrine binding site (MBS, site 1)) T. brucei Mepacrine binding site (MBS, site 1)
Ligand Z151832316
PDB6RB5

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
16.4 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.77, Jaccard 0.59
Burial
71%
Hydrophobic fit
68%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-0.806 kcal/mol/HA) ✓ Good fit quality (FQ -7.77) ✓ Good H-bonds (5 bonds) ✓ Deep burial (71% SASA buried) ✓ Lipophilic contacts well-matched (68%) ✗ Moderate strain (16.4 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-24.173
kcal/mol
LE
-0.806
kcal/mol/HA
Fit Quality
-7.77
FQ (Leeson)
HAC
30
heavy atoms
MW
458
Da
LogP
4.39
cLogP
Strain ΔE
16.4 kcal/mol
SASA buried
71%
Lipo contact
68% BSA apolar/total
SASA unbound
696 Ų
Apolar buried
336 Ų

Interaction summary

HB 5 HY 24 PI 2 CLASH 2

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 rank3.802Score-24.173
Inter norm-0.815Intra norm0.010
Top1000noExcludedno
Contacts14H-bonds5
Artifact reasongeometry warning; 7 clashes; 3 protein clashes
Residues
CYS52 GLU18 GLY49 ILE106 ILE339 LEU17 MET113 SER109 SER14 THR335 TRP21 TYR110 VAL53 VAL58

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name6RB5Contacts13
PoseOpen native poseHB0
IFP residues
ASP116 GLU18 GLY112 ILE106 LEU17 MET113 SER109 THR117 THR335 TRP21 TYR110 VAL53 VAL58
Current overlap10Native recall0.77
Jaccard0.59RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

Protein summary

493 residues
Protein targetT18Atoms7550
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
638 0.34325018158882725 -0.807998 -21.4581 1 12 0 0.00 - - no Open
623 0.39759002964385937 -0.907597 -28.7047 4 18 0 0.00 - - no Open
626 1.1227923024226714 -1.1074 -32.2501 5 18 0 0.00 - - no Open
626 1.1240171034297752 -0.831029 -27.0616 5 17 0 0.00 - - no Open
630 1.7563715265578972 -0.846368 -25.076 4 14 0 0.00 - - no Open
646 2.8590489487856874 -0.784314 -23.0842 6 16 0 0.00 - - no Open
639 3.474974056717497 -0.915663 -28.6397 5 9 0 0.00 - - no Open
649 3.8018158212879913 -0.815353 -24.1731 5 14 10 0.77 - - 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 -24.173kcal/mol
Ligand efficiency (LE) -0.8058kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.773
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 457.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.39
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 16.41kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -15.48kcal/mol
Minimised FF energy -31.89kcal/mol

SASA & burial

✓ computed
SASA (unbound) 696.3Ų
Total solvent-accessible surface area of free ligand
BSA total 496.1Ų
Buried surface area upon binding
BSA apolar 336.5Ų
Hydrophobic contacts buried
BSA polar 159.6Ų
Polar contacts buried
Fraction buried 71.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 67.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3103.2Ų
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 4076.6Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1483.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)