FAIRMol

OHD_MAC_26

Pose ID 12503 Compound 540 Pose 302

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T19
T. brucei TR (NADPH binding site) T. brucei NADPH binding site
Ligand OHD_MAC_26
PDB2WOV

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
25.0 kcal/mol
Protein clashes
0
Internal clashes
2
Native overlap
contact recall 0.44, Jaccard 0.39, H-bond role recall 0.20
Burial
81%
Hydrophobic fit
85%
Reason: no major geometry red flags detected
40% of hydrophobic surface appears solvent-exposed (10/25 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.778 kcal/mol/HA) ✓ Good fit quality (FQ -7.91) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (81% SASA buried) ✓ Lipophilic contacts well-matched (85%) ✗ High strain energy (25.0 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (16)
Score
-27.999
kcal/mol
LE
-0.778
kcal/mol/HA
Fit Quality
-7.91
FQ (Leeson)
HAC
36
heavy atoms
MW
522
Da
LogP
3.27
cLogP
Strain ΔE
25.0 kcal/mol
SASA buried
81%
Lipo contact
85% BSA apolar/total
SASA unbound
748 Ų
Apolar buried
513 Ų

Interaction summary

HB 6 HY 24 PI 2 CLASH 2 ⚠ Exposure 40%
⚠️Partial hydrophobic solvent exposure
40% of hydrophobic surface appears solvent-exposed (10/25 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 25 Buried (contacted) 15 Exposed 10 LogP 3.27 H-bonds 6
Exposed fragments: phenyl (2/6 atoms exposed)phenyl (6/6 atoms exposed)aliphatic chain/group (2 atoms exposed)
Final rank2.565Score-27.999
Inter norm-0.895Intra norm0.118
Top1000noExcludedno
Contacts16H-bonds6
Artifact reasongeometry warning; 16 clashes; 1 protein clash; 3 cofactor-context clashes; moderate strain Δ 25.0
Residues
ARG222 ARG228 ARG287 GLN165 GLY196 GLY197 GLY229 GLY286 LEU227 LEU332 LEU334 MET333 NDP800 PHE198 PHE230 SER364

Protein summary

493 residues
Protein targetT19Atoms7541
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:330; TYR:294; ASP:264; 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
C:NDP800

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name2WOVContacts27
PoseOpen native poseHB0
IFP residues
ALA284 ALA365 ARG222 ARG228 ARG287 ASN223 ASN254 GLN165 GLU202 GLY195 GLY196 GLY197 GLY286 ILE199 ILE285 LEU227 LEU334 LYS60 MET333 NDP800 PHE198 PHE367 PRO167 SER200 TYR221 VAL194 VAL366
Current overlap12Native recall0.44
Jaccard0.39RMSD-
HB strict0Strict recall0.00
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.25

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
393 2.22437183196119 -0.748002 -18.2633 3 19 0 0.00 0.00 - no Open
302 2.5650380205484904 -0.895305 -27.9993 6 16 12 0.44 0.20 - no Current
414 2.581238785332344 -0.827759 -21.9922 5 21 0 0.00 0.00 - no Open
435 2.740325451622645 -0.680116 -24.0446 4 19 0 0.00 0.00 - no Open
433 3.084085171441156 -0.79391 -26.5652 6 18 0 0.00 0.00 - no Open
367 4.429283315944971 -0.639569 -21.1595 4 15 0 0.00 0.00 - no Open
325 4.824771218206533 -0.935175 -30.3559 12 21 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 -27.999kcal/mol
Ligand efficiency (LE) -0.7778kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.905
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 36HA

Physicochemical properties

Molecular weight 522.1Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.27
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 25.01kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 155.18kcal/mol
Minimised FF energy 130.18kcal/mol

SASA & burial

✓ computed
SASA (unbound) 748.1Ų
Total solvent-accessible surface area of free ligand
BSA total 603.9Ų
Buried surface area upon binding
BSA apolar 513.5Ų
Hydrophobic contacts buried
BSA polar 90.4Ų
Polar contacts buried
Fraction buried 80.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 85.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3155.0Ų
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 4064.7Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1540.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)