FAIRMol

OHD_TC1_53

Pose ID 8910 Compound 4184 Pose 102

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_TC1_53
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
57.0 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.67, Jaccard 0.50, H-bond role recall 0.20
Burial
75%
Hydrophobic fit
81%
Reason: strain 57.0 kcal/mol
strain ΔE 57.0 kcal/mol 2 protein-contact clashes 79% of hydrophobic surface is solvent-exposed (19/24 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 (-0.534 kcal/mol/HA) ✓ Good fit quality (FQ -5.30) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (75% SASA buried) ✓ Lipophilic contacts well-matched (81%) ✗ Extreme strain energy (57.0 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (15)
Score
-17.635
kcal/mol
LE
-0.534
kcal/mol/HA
Fit Quality
-5.30
FQ (Leeson)
HAC
33
heavy atoms
MW
467
Da
LogP
1.15
cLogP
Strain ΔE
57.0 kcal/mol
SASA buried
75%
Lipo contact
81% BSA apolar/total
SASA unbound
787 Ų
Apolar buried
478 Ų

Interaction summary

HB 6 HY 3 PI 0 CLASH 2 ⚠ Exposure 79%
🚨Solvent-exposed hydrophobic surface — desolvation penalty likely
79% of hydrophobic surface is solvent-exposed (19/24 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 24 Buried (contacted) 5 Exposed 19 LogP 1.15 H-bonds 6
Exposed fragments: phenyl (6/6 atoms exposed)phenyl (6/6 atoms exposed)phenyl (4/6 atoms exposed)aliphatic chain/group (3 atoms exposed)
Final rank3.210Score-17.635
Inter norm-0.663Intra norm0.129
Top1000noExcludedno
Contacts15H-bonds6
Artifact reasongeometry warning; 15 clashes; 1 protein clash; high strain Δ 57.0
Residues
ARG22 ARG242 ASP243 ASP385 CYS26 GLN341 GLU343 GLU384 LEU25 LEU382 PHE284 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 overlap10Native recall0.67
Jaccard0.50RMSD-
HB strict1Strict recall0.17
HB same residue+role1HB role recall0.20
HB same residue3HB residue recall0.60

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

CLASH · Clashes

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
102 3.210382225238374 -0.662951 -17.635 6 15 10 0.67 0.20 - 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 -17.635kcal/mol
Ligand efficiency (LE) -0.5344kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.302
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 466.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.15
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 57.05kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 83.76kcal/mol
Minimised FF energy 26.71kcal/mol

SASA & burial

✓ computed
SASA (unbound) 787.5Ų
Total solvent-accessible surface area of free ligand
BSA total 588.0Ų
Buried surface area upon binding
BSA apolar 478.4Ų
Hydrophobic contacts buried
BSA polar 109.6Ų
Polar contacts buried
Fraction buried 74.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 81.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2615.2Ų
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 3349.0Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1386.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)