FAIRMol

KB_HAT_187

Pose ID 10968 Compound 922 Pose 125

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T17
T. brucei TR (Doorstop site) T. brucei Doorstop site
Ligand KB_HAT_187
PDB5S9T

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
17.3 kcal/mol
Protein clashes
10
Internal clashes
10
Native overlap
contact recall 0.75, Jaccard 0.36, H-bond role recall 0.00
Burial
87%
Hydrophobic fit
92%
Reason: 10 protein-contact clashes, 10 internal clashes
10 protein-contact clashes 10 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.708 kcal/mol/HA) ✓ Good fit quality (FQ -6.61) ✓ Good H-bonds (4 bonds) ✓ Deep burial (87% SASA buried) ✓ Lipophilic contacts well-matched (92%) ✗ Moderate strain (17.3 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (10) ✗ Internal clashes (9)
Score
-19.122
kcal/mol
LE
-0.708
kcal/mol/HA
Fit Quality
-6.61
FQ (Leeson)
HAC
27
heavy atoms
MW
426
Da
LogP
3.34
cLogP
Strain ΔE
17.3 kcal/mol
SASA buried
87%
Lipo contact
92% BSA apolar/total
SASA unbound
668 Ų
Apolar buried
533 Ų

Interaction summary

HB 4 HY 24 PI 2 CLASH 10
Final rank1.871Score-19.122
Inter norm-0.825Intra norm0.116
Top1000noExcludedno
Contacts22H-bonds4
Artifact reasongeometry warning; 9 clashes; 10 protein contact clashes
Residues
ALA363 ALA365 ARG287 ARG331 ASP330 FAD501 GLU202 GLY286 ILE199 LEU332 LEU334 LYS60 MET333 PHE198 PHE230 PHE367 PRO336 SER364 VAL366 GLY459 HIS461 VAL460

Protein summary

1033 residues
Protein targetT17Atoms15160
Residues1033Chains2
Residue summaryVAL:1536; LEU:1387; LYS:1386; ILE:1064; GLU:900; THR:868; ARG:816; PHE:800; ALA:780; ASN:700; PRO:686; GLY:672; SER:616; TYR:588; ASP:528; MET:408

Receptor context

2 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 2 Excluded HETATM 0
Kept cofactors / ions
A:FAD501 B:FAD501

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name5S9TContacts12
PoseOpen native poseHB0
IFP residues
ALA365 ARG228 ARG331 GLY229 LEU332 LEU334 MET333 PHE198 PHE230 SER364 THR374 VAL366
Current overlap9Native recall0.75
Jaccard0.36RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
112 1.0237228161835357 -0.921618 -20.3586 4 16 0 0.00 0.00 - no Open
112 1.1484773859344817 -0.881947 -22.294 5 13 0 0.00 0.00 - no Open
107 1.5906811673286758 -1.13802 -30.2193 3 18 0 0.00 0.00 - no Open
116 1.7368687972028278 -0.939455 -24.4564 5 14 0 0.00 0.00 - no Open
125 1.8705548783515578 -0.824677 -19.122 4 22 9 0.75 0.00 - no Current
111 1.9567266273999773 -0.941489 -19.4943 2 20 0 0.00 0.00 - no Open
148 2.1545192277817584 -0.83535 -23.2836 3 14 0 0.00 0.00 - no Open
134 2.3450479455114124 -0.937703 -23.0809 2 20 0 0.00 0.00 - no Open
87 2.657445309836105 -1.16369 -27.7545 7 18 0 0.00 0.00 - no Open
91 2.796280609468839 -1.05791 -24.8275 7 12 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 -19.122kcal/mol
Ligand efficiency (LE) -0.7082kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.607
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 426.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.34
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 17.33kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 9.73kcal/mol
Minimised FF energy -7.61kcal/mol

SASA & burial

✓ computed
SASA (unbound) 668.0Ų
Total solvent-accessible surface area of free ligand
BSA total 581.4Ų
Buried surface area upon binding
BSA apolar 533.5Ų
Hydrophobic contacts buried
BSA polar 47.9Ų
Polar contacts buried
Fraction buried 87.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 91.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6599.5Ų
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 8063.1Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 2075.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)