FAIRMol

Z27681463

Pose ID 14895 Compound 3548 Pose 657

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T22
L. donovani rab5a L. donovani
Ligand Z27681463

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
31.9 kcal/mol
Protein clashes
0
Internal clashes
13
Native overlap
contact recall 0.67, Jaccard 0.64, H-bond role recall 0.45
Burial
72%
Hydrophobic fit
71%
Reason: 13 internal clashes
13 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.011 kcal/mol/HA) ✓ Good fit quality (FQ -9.75) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (72% SASA buried) ✓ Lipophilic contacts well-matched (71%) ✗ Very high strain energy (31.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (13)
Score
-30.328
kcal/mol
LE
-1.011
kcal/mol/HA
Fit Quality
-9.75
FQ (Leeson)
HAC
30
heavy atoms
MW
425
Da
LogP
2.13
cLogP
Strain ΔE
31.9 kcal/mol
SASA buried
72%
Lipo contact
71% BSA apolar/total
SASA unbound
662 Ų
Apolar buried
340 Ų

Interaction summary

HB 9 HY 8 PI 1 CLASH 0
Final rank3.618Score-30.328
Inter norm-1.082Intra norm0.071
Top1000noExcludedno
Contacts15H-bonds9
Artifact reasongeometry warning; 13 clashes; 2 protein clashes; high strain Δ 31.8
Residues
ALA24 ALA40 ASN41 GLU21 GLU73 GLY23 GLY25 LYS127 LYS159 LYS26 PHE38 SER22 SER27 SER28 THR44

Protein summary

165 residues
Protein targetT22Atoms2561
Residues165Chains1
Residue summaryLEU:363; LYS:242; ALA:231; ARG:214; ILE:190; GLU:180; VAL:144; SER:143; PHE:140; ASN:112; THR:112; TYR:105; GLN:102; ASP:96; GLY:77; TRP:48

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
NameRAB5AContacts21
PoseOpen native poseHB0
IFP residues
ALA158 ALA24 ALA40 ASN126 ASN41 ASP129 GLN42 GLU21 GLU73 GLY23 GLY25 LEU130 LEU39 LYS127 LYS159 LYS26 PHE38 SER157 SER22 SER27 SER28
Current overlap14Native recall0.67
Jaccard0.64RMSD-
HB strict7Strict recall0.47
HB same residue+role5HB role recall0.45
HB same residue5HB residue recall0.45

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

No clash · clashes detected for this pose.

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
647 3.3074684046618104 -0.684814 -18.9079 6 13 0 0.00 0.00 - no Open
657 3.6179227807107277 -1.08185 -30.3285 9 15 14 0.67 0.45 - no Current
642 4.624069606255471 -0.81144 -22.3455 12 16 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 -30.328kcal/mol
Ligand efficiency (LE) -1.0110kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.752
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 425.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.13
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 31.85kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -29.47kcal/mol
Minimised FF energy -61.32kcal/mol

SASA & burial

✓ computed
SASA (unbound) 662.3Ų
Total solvent-accessible surface area of free ligand
BSA total 476.3Ų
Buried surface area upon binding
BSA apolar 339.6Ų
Hydrophobic contacts buried
BSA polar 136.7Ų
Polar contacts buried
Fraction buried 71.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 71.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1322.3Ų
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 1368.5Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 536.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)