FAIRMol

OHD_ACDS_69

Pose ID 9481 Compound 3118 Pose 673

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_69
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
Likely artefact or unreliable pose
Binding strong Geometry high Native strong SASA done
Strain ΔE
29.1 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.73, Jaccard 0.50, H-bond role recall 0.40
Burial
84%
Hydrophobic fit
80%
Reason: no major geometry red flags detected
2 protein-contact clashes 57% of hydrophobic surface appears solvent-exposed (12/21 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.709 kcal/mol/HA) ✓ Good fit quality (FQ -6.84) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (84% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ High strain energy (29.1 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (6) ✗ Many internal clashes (10)
Score
-21.262
kcal/mol
LE
-0.709
kcal/mol/HA
Fit Quality
-6.84
FQ (Leeson)
HAC
30
heavy atoms
MW
407
Da
LogP
2.12
cLogP
Strain ΔE
29.1 kcal/mol
SASA buried
84%
Lipo contact
80% BSA apolar/total
SASA unbound
716 Ų
Apolar buried
478 Ų

Interaction summary

HB 6 HY 4 PI 0 CLASH 2 ⚠ Exposure 57%
⚠️Partial hydrophobic solvent exposure
57% of hydrophobic surface appears solvent-exposed (12/21 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 21 Buried (contacted) 9 Exposed 12 LogP 2.12 H-bonds 6
Exposed fragments: phenyl (6/6 atoms exposed)aliphatic chain/group (6 atoms exposed)
Final rank1.353Score-21.262
Inter norm-0.846Intra norm0.137
Top1000noExcludedno
Contacts18H-bonds6
Artifact reasongeometry warning; 10 clashes; 6 protein contact clashes; moderate strain Δ 29.1
Residues
ARG22 ARG342 ASN20 ASP385 ASP44 CYS26 GLN341 GLU343 GLU384 LEU25 LEU339 LEU382 PRO340 PRO344 SER282 SER410 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 overlap11Native recall0.73
Jaccard0.50RMSD-
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
673 1.3531126534554743 -0.845891 -21.2625 6 18 11 0.73 0.40 - no Current
675 1.8777160867948284 -0.864778 -21.3099 11 17 0 0.00 0.00 - no Open
672 2.0326263552148536 -1.14612 -27.3148 14 14 0 0.00 0.00 - no Open
676 4.045459939627847 -0.842639 -22.2401 7 18 0 0.00 0.00 - no Open
677 4.76347474340994 -0.755331 -17.0491 7 15 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 -21.262kcal/mol
Ligand efficiency (LE) -0.7087kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.837
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 407.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.12
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 29.07kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 54.35kcal/mol
Minimised FF energy 25.27kcal/mol

SASA & burial

✓ computed
SASA (unbound) 715.7Ų
Total solvent-accessible surface area of free ligand
BSA total 599.3Ų
Buried surface area upon binding
BSA apolar 478.0Ų
Hydrophobic contacts buried
BSA polar 121.3Ų
Polar contacts buried
Fraction buried 83.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2523.4Ų
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 1383.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)