FAIRMol

OHD_TB2019_2

Pose ID 10195 Compound 599 Pose 30

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 OHD_TB2019_2
PDB6RB5

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
42.2 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.58, Jaccard 0.37
Burial
61%
Hydrophobic fit
88%
Reason: strain 42.2 kcal/mol
strain ΔE 42.2 kcal/mol 1 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.647 kcal/mol/HA) ✓ Good fit quality (FQ -6.58) ✓ Good H-bonds (5 bonds) ✓ Good burial (61% SASA buried) ✓ Lipophilic contacts well-matched (88%) ✗ Extreme strain energy (42.2 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-23.309
kcal/mol
LE
-0.647
kcal/mol/HA
Fit Quality
-6.58
FQ (Leeson)
HAC
36
heavy atoms
MW
557
Da
LogP
1.17
cLogP
Final rank
4.2487
rank score
Inter norm
-0.645
normalised
Contacts
14
H-bonds 5
Strain ΔE
42.2 kcal/mol
SASA buried
61%
Lipo contact
88% BSA apolar/total
SASA unbound
835 Ų
Apolar buried
454 Ų

Interaction summary

HBD 3 HBA 2 HY 5 PI 0 CLASH 1

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 4.

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 overlap7Native recall0.58
Jaccard0.37RMSD-
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
46 3.0818500302082827 -0.755376 -23.3217 5 18 0 0.00 - - no Open
47 3.148699315187211 -0.616794 -19.0073 4 21 0 0.00 - - no Open
56 3.6851743554679706 -0.762883 -25.0327 6 19 0 0.00 - - no Open
44 3.995308380227002 -0.639373 -19.7348 8 17 0 0.00 - - no Open
30 4.248694740987158 -0.644906 -23.3087 5 14 7 0.58 - - 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 -23.309kcal/mol
Ligand efficiency (LE) -0.6475kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.581
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 36HA

Physicochemical properties

Molecular weight 557.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.17
Lipinski: ≤ 5
Rotatable bonds 10

Conformational strain (MMFF94s)

Strain energy (ΔE) 42.16kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 249.97kcal/mol
Minimised FF energy 207.81kcal/mol

SASA & burial

✓ computed
SASA (unbound) 835.1Ų
Total solvent-accessible surface area of free ligand
BSA total 512.8Ų
Buried surface area upon binding
BSA apolar 454.1Ų
Hydrophobic contacts buried
BSA polar 58.7Ų
Polar contacts buried
Fraction buried 61.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 88.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3311.1Ų
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 4076.6Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1504.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)