FAIRMol

OHD_ACDS_46

Pose ID 9479 Compound 530 Pose 671

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_ACDS_46
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 strong SASA done
Strain ΔE
26.9 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.60, Jaccard 0.41, H-bond role recall 0.40
Burial
73%
Hydrophobic fit
92%
Reason: no major geometry red flags detected
2 protein-contact clashes 64% of hydrophobic surface is solvent-exposed (16/25 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 (-0.704 kcal/mol/HA) ✓ Good fit quality (FQ -6.98) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (73% SASA buried) ✓ Lipophilic contacts well-matched (92%) ✗ High strain energy (26.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (11)
Score
-23.221
kcal/mol
LE
-0.704
kcal/mol/HA
Fit Quality
-6.98
FQ (Leeson)
HAC
33
heavy atoms
MW
587
Da
LogP
6.59
cLogP
Strain ΔE
26.9 kcal/mol
SASA buried
73%
Lipo contact
92% BSA apolar/total
SASA unbound
752 Ų
Apolar buried
502 Ų

Interaction summary

HB 6 HY 5 PI 0 CLASH 2 ⚠ Exposure 64%
🚨Solvent-exposed hydrophobic surface — desolvation penalty likely
64% of hydrophobic surface is solvent-exposed (16/25 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 25 Buried (contacted) 9 Exposed 16 LogP 6.59 H-bonds 6
Exposed fragments: phenyl (4/5 atoms exposed)phenyl (6/6 atoms exposed)phenyl (6/6 atoms exposed)aliphatic chain/group (2 atoms exposed)
Final rank3.427Score-23.221
Inter norm-0.752Intra norm0.048
Top1000noExcludedno
Contacts16H-bonds6
Artifact reasongeometry warning; 11 clashes; 2 protein clashes; moderate strain Δ 25.4
Residues
ALA283 ARG22 ARG342 ASN20 ASP44 CYS26 GLN341 GLU343 GLU384 LEU25 LEU339 LEU382 PRO340 SER282 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 overlap9Native recall0.60
Jaccard0.41RMSD-
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
675 0.7365778015741843 -0.722297 -22.475 0 16 0 0.00 0.00 - no Open
675 0.9222024432790271 -0.780298 -20.7138 1 13 0 0.00 0.00 - no Open
675 1.3318990393087835 -0.784455 -23.5259 2 21 0 0.00 0.00 - no Open
673 1.8257988947562371 -0.780003 -25.6147 1 19 0 0.00 0.00 - no Open
677 2.185754577570499 -0.707577 -22.2139 3 17 0 0.00 0.00 - no Open
679 2.313050101027019 -0.653709 -21.3095 3 10 0 0.00 0.00 - no Open
673 3.0051206271132003 -0.799552 -28.209 3 14 0 0.00 0.00 - no Open
674 3.2471955707314253 -0.731831 -19.575 7 14 0 0.00 0.00 - no Open
668 3.304781108763105 -0.829561 -25.784 7 18 0 0.00 0.00 - no Open
671 3.426665874948449 -0.751822 -23.221 6 16 9 0.60 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 -23.221kcal/mol
Ligand efficiency (LE) -0.7037kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.982
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 587.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 6.59
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 26.94kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 1.70kcal/mol
Minimised FF energy -25.24kcal/mol

SASA & burial

✓ computed
SASA (unbound) 751.9Ų
Total solvent-accessible surface area of free ligand
BSA total 546.2Ų
Buried surface area upon binding
BSA apolar 502.2Ų
Hydrophobic contacts buried
BSA polar 44.0Ų
Polar contacts buried
Fraction buried 72.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 91.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2561.1Ų
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 1478.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)