FAIRMol

OHD_Leishmania_480

Pose ID 8846 Compound 836 Pose 38

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_Leishmania_480
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 medium Native mixed SASA done
Strain ΔE
20.6 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.53, Jaccard 0.35, H-bond role recall 0.00
Burial
68%
Hydrophobic fit
80%
Reason: no major geometry red flags detected
4 protein-contact clashes 4 intramolecular clashes 62% of hydrophobic surface is solvent-exposed (16/26 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 ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.686 kcal/mol/HA) ✓ Good fit quality (FQ -7.02) ✓ Good H-bonds (4 bonds) ✓ Deep burial (68% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ High strain energy (20.6 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (8) ✗ Many internal clashes (18)
Score
-25.383
kcal/mol
LE
-0.686
kcal/mol/HA
Fit Quality
-7.02
FQ (Leeson)
HAC
37
heavy atoms
MW
552
Da
LogP
5.58
cLogP
Strain ΔE
20.6 kcal/mol
SASA buried
68%
Lipo contact
80% BSA apolar/total
SASA unbound
796 Ų
Apolar buried
429 Ų

Interaction summary

HB 4 HY 2 PI 0 CLASH 4 ⚠ Exposure 61%
🚨Solvent-exposed hydrophobic surface — desolvation penalty likely
62% of hydrophobic surface is solvent-exposed (16/26 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 26 Buried (contacted) 10 Exposed 16 LogP 5.58 H-bonds 4
Exposed fragments: phenyl (6/6 atoms exposed)phenyl (6/6 atoms exposed)phenyl (3/5 atoms exposed)aliphatic chain/group (1 atom exposed)
Final rank2.543Score-25.383
Inter norm-0.667Intra norm-0.019
Top1000noExcludedno
Contacts16H-bonds4
Artifact reasongeometry warning; 18 clashes; 8 protein contact clashes; moderate strain Δ 20.7
Residues
ARG242 ARG337 ARG50 ASP243 ASP385 ASP47 GLU384 GLY240 LEU339 LYS51 PHE383 SER282 THR241 TYR370 VAL335 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 overlap8Native recall0.53
Jaccard0.35RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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
32 1.795447965694356 -0.800955 -26.2534 3 19 0 0.00 0.00 - no Open
38 2.54254757633253 -0.666768 -25.3827 4 16 8 0.53 0.00 - no Current
31 2.6391231269031694 -0.938147 -31.4622 5 17 0 0.00 0.00 - no Open
36 2.7345757417426713 -0.666731 -24.4372 6 12 0 0.00 0.00 - no Open
34 2.929079553686404 -0.770344 -25.7463 1 15 0 0.00 0.00 - no Open
18 2.982167915445581 -0.674628 -22.067 4 15 0 0.00 0.00 - no Open
39 3.0351032789602472 -0.961909 -34.6797 6 19 0 0.00 0.00 - no Open
29 3.737872089519109 -0.599555 -19.0113 3 11 0 0.00 0.00 - no Open
34 3.7874201864497987 -0.595766 -21.543 5 10 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 -25.383kcal/mol
Ligand efficiency (LE) -0.6860kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.023
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 37HA

Physicochemical properties

Molecular weight 552.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.58
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 20.65kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 56.01kcal/mol
Minimised FF energy 35.36kcal/mol

SASA & burial

✓ computed
SASA (unbound) 796.2Ų
Total solvent-accessible surface area of free ligand
BSA total 539.3Ų
Buried surface area upon binding
BSA apolar 429.2Ų
Hydrophobic contacts buried
BSA polar 110.0Ų
Polar contacts buried
Fraction buried 67.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2552.3Ų
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 1459.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)