FAIRMol

OHD_TbNat_2

Pose ID 8887 Compound 603 Pose 79

DB fairmolDocking 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_TbNat_2
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
29.4 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.53, Jaccard 0.40, H-bond role recall 0.60
Burial
78%
Hydrophobic fit
79%
Reason: no major geometry red flags detected
2 protein-contact clashes 95% of hydrophobic surface is solvent-exposed (19/20 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 (-0.755 kcal/mol/HA) ✓ Good fit quality (FQ -6.87) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (78% SASA buried) ✓ Lipophilic contacts well-matched (79%) ✗ High strain energy (29.4 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-18.887
kcal/mol
LE
-0.755
kcal/mol/HA
Fit Quality
-6.87
FQ (Leeson)
HAC
25
heavy atoms
MW
340
Da
LogP
3.91
cLogP
Final rank
3.5207
rank score
Inter norm
-1.022
normalised
Contacts
13
H-bonds 8
Strain ΔE
29.4 kcal/mol
SASA buried
78%
Lipo contact
79% BSA apolar/total
SASA unbound
635 Ų
Apolar buried
394 Ų

Interaction summary

HBD 3 HBA 3 HY 3 PI 0 CLASH 2

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 4.

PI · π–π interactions

No pi · π–π interactions detected for this pose.

HY · Hydrophobic contacts

CLASH · Clashes

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: permissive.
Name1NJJContacts15
PoseOpen native poseHB0
IFP residues
ARG22 ARG242 ARG337 ARG342 ASP243 ASP385 GLN341 GLU384 LEU25 LEU339 LEU382 PRO340 PRO344 SER282 THR241
Current overlap8Native recall0.53
Jaccard0.40RMSD-
HB strict3Strict recall0.50
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
66 0.8305093453479375 -0.860099 -15.002 6 19 0 0.00 0.00 - no Open
74 2.1373659912864653 -0.970433 -20.7683 6 16 0 0.00 0.00 - no Open
29 2.600107939307177 -1.01846 -24.5258 11 15 0 0.00 0.00 - no Open
65 2.6022736026417634 -0.939392 -18.7025 3 14 0 0.00 0.00 - no Open
54 3.0349276914671437 -1.1562 -26.1336 11 17 0 0.00 0.00 - no Open
43 3.222270151018671 -1.10798 -20.2889 10 16 0 0.00 0.00 - no Open
79 3.5206894931967216 -1.022 -18.8867 8 13 8 0.53 0.60 - no Current
90 3.7209462673393525 -1.01938 -22.3114 6 13 0 0.00 0.00 - no Open
64 4.14130884921673 -1.0316 -21.4621 9 18 0 0.00 0.00 - no Open
77 4.326743905642506 -0.753896 -17.6426 7 12 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 -18.887kcal/mol
Ligand efficiency (LE) -0.7555kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.868
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties

Molecular weight 340.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.91
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 29.39kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 88.66kcal/mol
Minimised FF energy 59.27kcal/mol

SASA & burial

✓ computed
SASA (unbound) 635.3Ų
Total solvent-accessible surface area of free ligand
BSA total 497.2Ų
Buried surface area upon binding
BSA apolar 394.3Ų
Hydrophobic contacts buried
BSA polar 102.9Ų
Polar contacts buried
Fraction buried 78.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2458.6Ų
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 1396.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)