FAIRMol

OHD_TC1_151

Pose ID 8913 Compound 1955 Pose 105

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_151
PDB1NJJ

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
25.5 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.33, Jaccard 0.24, H-bond role recall 0.40
Burial
68%
Hydrophobic fit
80%
Reason: no major geometry red flags detected
1 protein-contact clashes 61% of hydrophobic surface is solvent-exposed (11/18 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 ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.823 kcal/mol/HA) ✓ Good fit quality (FQ -7.68) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (68% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ High strain energy (25.5 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-22.222
kcal/mol
LE
-0.823
kcal/mol/HA
Fit Quality
-7.68
FQ (Leeson)
HAC
27
heavy atoms
MW
394
Da
LogP
1.81
cLogP
Strain ΔE
25.5 kcal/mol
SASA buried
68%
Lipo contact
80% BSA apolar/total
SASA unbound
588 Ų
Apolar buried
320 Ų

Interaction summary

HB 6 HY 4 PI 0 CLASH 1 ⚠ Exposure 61%
🚨Solvent-exposed hydrophobic surface — desolvation penalty likely
61% of hydrophobic surface is solvent-exposed (11/18 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 18 Buried (contacted) 7 Exposed 11 LogP 1.81 H-bonds 6
Exposed fragments: phenyl (6/6 atoms exposed)phenyl (4/5 atoms exposed)aliphatic chain/group (1 atom exposed)
Final rank2.819Score-22.222
Inter norm-0.812Intra norm-0.011
Top1000noExcludedno
Contacts11H-bonds6
Artifact reasongeometry warning; 9 clashes; 2 protein clashes; moderate strain Δ 25.5
Residues
ARG22 ASN20 CYS26 GLN341 GLU343 GLU384 ILE345 LEU25 LEU382 THR21 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 overlap5Native recall0.33
Jaccard0.24RMSD-
HB strict2Strict recall0.33
HB same residue+role2HB role recall0.40
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

CLASH · Clashes

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
71 0.3760571057301034 -1.0325 -30.4005 11 12 0 0.00 0.00 - no Open
58 1.0304108529340756 -1.16052 -31.0795 6 18 0 0.00 0.00 - no Open
99 1.816352109006644 -1.19614 -32.6755 5 18 0 0.00 0.00 - no Open
97 2.1905649553176523 -0.774236 -19.1478 9 13 0 0.00 0.00 - no Open
65 2.5848210356258168 -0.907266 -23.2853 10 17 0 0.00 0.00 - no Open
105 2.8188096670692153 -0.81193 -22.222 6 11 5 0.33 0.40 - 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 -22.222kcal/mol
Ligand efficiency (LE) -0.8230kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.679
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 393.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.81
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 25.51kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 126.98kcal/mol
Minimised FF energy 101.47kcal/mol

SASA & burial

✓ computed
SASA (unbound) 588.2Ų
Total solvent-accessible surface area of free ligand
BSA total 397.8Ų
Buried surface area upon binding
BSA apolar 319.8Ų
Hydrophobic contacts buried
BSA polar 78.0Ų
Polar contacts buried
Fraction buried 67.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2387.8Ų
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 1462.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)