FAIRMol

OHD_MAC_7

Pose ID 9153 Compound 243 Pose 345

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_7
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 medium Native strong SASA done
Strain ΔE
28.3 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.60, Jaccard 0.43, H-bond role recall 0.40
Burial
76%
Hydrophobic fit
79%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes 67% of hydrophobic surface is solvent-exposed (12/18 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 (-0.803 kcal/mol/HA) ✓ Good fit quality (FQ -7.49) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (76% SASA buried) ✓ Lipophilic contacts well-matched (79%) ✗ High strain energy (28.3 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (14)
Score
-21.689
kcal/mol
LE
-0.803
kcal/mol/HA
Fit Quality
-7.49
FQ (Leeson)
HAC
27
heavy atoms
MW
360
Da
LogP
2.42
cLogP
Strain ΔE
28.3 kcal/mol
SASA buried
76%
Lipo contact
79% BSA apolar/total
SASA unbound
635 Ų
Apolar buried
381 Ų

Interaction summary

HB 10 HY 1 PI 0 CLASH 3 ⚠ Exposure 66%
🚨Solvent-exposed hydrophobic surface — desolvation penalty likely
67% of hydrophobic surface is solvent-exposed (12/18 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) 6 Exposed 12 LogP 2.42 H-bonds 10
Exposed fragments: phenyl (6/6 atoms exposed)phenyl (5/6 atoms exposed)aliphatic chain/group (1 atom exposed)
Final rank4.977Score-21.689
Inter norm-0.945Intra norm0.142
Top1000noExcludedno
Contacts15H-bonds10
Artifact reasongeometry warning; 14 clashes; 3 protein clashes; moderate strain Δ 28.3
Residues
ARG242 ARG337 ASP243 ASP385 ASP47 GLU384 LEU339 LEU382 LYS51 MET386 PHE383 PRO338 SER282 THR241 VAL336

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
Jaccard0.43RMSD-
HB strict1Strict recall0.17
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
24 0.7549739333923433 -1.59413 -34.7747 10 20 0 0.00 0.00 - no Open
329 0.8698098052673956 -1.45049 -32.341 12 17 0 0.00 0.00 - no Open
317 0.8946384457594485 -1.58597 -34.0011 11 20 0 0.00 0.00 - no Open
28 1.0656347282420564 -1.45916 -33.2626 11 19 0 0.00 0.00 - no Open
356 1.3049353307334395 -0.979504 -15.9888 7 14 0 0.00 0.00 - no Open
18 1.588420314889381 -0.911019 -18.1341 8 13 0 0.00 0.00 - no Open
422 1.6628478945064362 -1.05644 -21.9746 9 14 0 0.00 0.00 - no Open
20 3.0361155172718495 -1.0181 -22.5996 8 16 0 0.00 0.00 - no Open
23 3.1202537945072804 -1.07531 -24.183 8 16 0 0.00 0.00 - no Open
27 3.3132689308519394 -0.966783 -22.6379 4 18 0 0.00 0.00 - no Open
356 3.328134667714495 -0.944168 -25.3759 8 17 0 0.00 0.00 - no Open
344 3.624100808087315 -0.981092 -22.542 4 18 0 0.00 0.00 - no Open
388 4.022832904360227 -0.998263 -23.0614 8 15 0 0.00 0.00 - no Open
13 4.626933943246996 -0.776058 -21.6728 5 15 0 0.00 0.00 - no Open
28 4.830200145190352 -0.821899 -16.9858 6 13 8 0.53 0.20 - no Open
345 4.977153414468411 -0.945005 -21.6885 10 15 9 0.60 0.40 - no Current
317 5.527148258279148 -1.01223 -15.9467 14 19 0 0.00 0.00 - no Open
317 5.568677730743583 -1.13532 -21.0205 16 22 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 -21.689kcal/mol
Ligand efficiency (LE) -0.8033kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.494
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 360.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.42
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 28.29kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 119.49kcal/mol
Minimised FF energy 91.20kcal/mol

SASA & burial

✓ computed
SASA (unbound) 634.7Ų
Total solvent-accessible surface area of free ligand
BSA total 482.4Ų
Buried surface area upon binding
BSA apolar 380.8Ų
Hydrophobic contacts buried
BSA polar 101.6Ų
Polar contacts buried
Fraction buried 76.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2480.5Ų
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 1390.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)