FAIRMol

OHD_MAC_51

Pose ID 9168 Compound 215 Pose 360

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T14
T. brucei ODC (G418 binding site) T. brucei G418 binding site
Ligand OHD_MAC_51
PDB1NJJ

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
48.0 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.60, Jaccard 0.50, H-bond role recall 0.20
Burial
58%
Hydrophobic fit
70%
Reason: strain 48.0 kcal/mol
strain ΔE 48.0 kcal/mol 2 protein-contact clashes 100% of hydrophobic surface is solvent-exposed (22/22 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.588 kcal/mol/HA) ✓ Good fit quality (FQ -5.88) ✓ Strong H-bond network (8 bonds) ✓ Good burial (58% SASA buried) ✓ Lipophilic contacts well-matched (70%) ✗ Extreme strain energy (48.0 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (14)
Score
-19.998
kcal/mol
LE
-0.588
kcal/mol/HA
Fit Quality
-5.88
FQ (Leeson)
HAC
34
heavy atoms
MW
463
Da
LogP
2.49
cLogP
Strain ΔE
48.0 kcal/mol
SASA buried
58%
Lipo contact
70% BSA apolar/total
SASA unbound
788 Ų
Apolar buried
322 Ų

Interaction summary

HB 8 HY 0 PI 0 CLASH 2 ⚠ Exposure 100%
🚨Solvent-exposed hydrophobic surface — desolvation penalty likely
100% of hydrophobic surface is solvent-exposed (22/22 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.
Non-polar atoms 22 Buried (contacted) 0 Exposed 22 LogP 2.49 H-bonds 8
Exposed fragments: phenyl (6/6 atoms exposed)phenyl (4/6 atoms exposed)phenyl (4/6 atoms exposed)phenyl (6/6 atoms exposed)aliphatic chain/group (4 atoms exposed)
Final rank3.352Score-19.998
Inter norm-0.672Intra norm0.084
Top1000noExcludedno
Contacts12H-bonds8
Artifact reasongeometry warning; 14 clashes; 1 protein clash; high strain Δ 48.0
Residues
ARG22 ARG242 ASN20 ASP243 ASP385 GLU384 LEU25 LEU382 SER282 THR21 THR241 THR285

Protein summary

398 residues
Protein targetT14Atoms6140
Residues398Chains1
Residue summaryVAL:592; LEU:513; LYS:484; ARG:432; PHE:420; ILE:418; ASP:349; THR:322; TYR:315; PRO:308; GLU:301; ALA:290; SER:253; GLY:217; ASN:210; GLN:170

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:ORX602

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name1NJJContacts15
PoseOpen native poseHB0
IFP residues
ARG22 ARG242 ARG337 ARG342 ASP243 ASP385 GLN341 GLU384 LEU25 LEU339 LEU382 PRO340 PRO344 SER282 THR241
Current overlap9Native recall0.60
Jaccard0.50RMSD-
HB strict1Strict recall0.17
HB same residue+role1HB role recall0.20
HB same residue2HB residue recall0.40

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

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

HY · Hydrophobic contacts

No hy · hydrophobic contacts detected for this pose.

CLASH · Clashes

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
431 1.2451313644528765 -0.868392 -23.2635 8 17 0 0.00 0.00 - no Open
446 1.559678130814029 -0.851204 -20.736 8 22 0 0.00 0.00 - no Open
367 1.7363078992118561 -0.747066 -18.0906 9 15 0 0.00 0.00 - no Open
311 2.4665199956745942 -0.961514 -25.0817 15 12 0 0.00 0.00 - no Open
375 2.6334168552091985 -0.798666 -19.7113 4 14 0 0.00 0.00 - no Open
359 2.7914438196960063 -0.974924 -30.1583 3 18 0 0.00 0.00 - no Open
400 3.2292764609267595 -0.842641 -19.4456 8 15 0 0.00 0.00 - no Open
360 3.3520427793386554 -0.671838 -19.9977 8 12 9 0.60 0.20 - no Current
353 3.5046443281454978 -0.72972 -21.574 11 13 0 0.00 0.00 - no Open
370 5.275585035867206 -0.916306 -26.3461 16 19 0 0.00 0.00 - no Open
476 5.337543218588304 -0.846288 -25.8914 8 17 0 0.00 0.00 - no Open
349 5.748052224316116 -0.929491 -21.2046 16 25 0 0.00 0.00 - no Open
316 6.990391588971337 -0.834522 -16.6889 15 18 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 -19.998kcal/mol
Ligand efficiency (LE) -0.5882kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.885
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 34HA

Physicochemical properties

Molecular weight 463.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.49
Lipinski: ≤ 5
Rotatable bonds 12

Conformational strain (MMFF94s)

Strain energy (ΔE) 48.03kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 115.27kcal/mol
Minimised FF energy 67.24kcal/mol

SASA & burial

✓ computed
SASA (unbound) 787.5Ų
Total solvent-accessible surface area of free ligand
BSA total 458.9Ų
Buried surface area upon binding
BSA apolar 321.7Ų
Hydrophobic contacts buried
BSA polar 137.2Ų
Polar contacts buried
Fraction buried 58.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 70.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2525.4Ų
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 3349.0Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1425.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)