FAIRMol

Z56782307

Pose ID 14713 Compound 5174 Pose 475

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 Z56782307

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native mixed SASA done
Strain ΔE
43.9 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.52, Jaccard 0.41, H-bond role recall 0.45
Burial
87%
Hydrophobic fit
71%
Reason: strain 43.9 kcal/mol
strain ΔE 43.9 kcal/mol 1 protein-contact clashes 43% of hydrophobic surface appears solvent-exposed (9/21 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 (-1.061 kcal/mol/HA) ✓ Good fit quality (FQ -10.13) ✓ Strong H-bond network (11 bonds) ✓ Deep burial (87% SASA buried) ✓ Lipophilic contacts well-matched (71%) ✗ Extreme strain energy (43.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (13)
Score
-30.768
kcal/mol
LE
-1.061
kcal/mol/HA
Fit Quality
-10.13
FQ (Leeson)
HAC
29
heavy atoms
MW
410
Da
LogP
1.48
cLogP
Strain ΔE
43.9 kcal/mol
SASA buried
87%
Lipo contact
71% BSA apolar/total
SASA unbound
605 Ų
Apolar buried
374 Ų

Interaction summary

HB 11 HY 9 PI 1 CLASH 1 ⚠ Exposure 42%

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

⚠️Partial hydrophobic solvent exposure
43% of hydrophobic surface appears solvent-exposed (9/21 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 21 Buried (contacted) 12 Exposed 9 LogP 1.48 H-bonds 11
Exposed fragments: phenyl (4/6 atoms exposed)phenyl (4/5 atoms exposed)aliphatic chain/group (1 atom exposed)
Final rank3.856Score-30.768
Inter norm-1.037Intra norm-0.024
Top1000noExcludedno
Contacts17H-bonds11
Artifact reasongeometry warning; 13 clashes; 2 protein clashes; high strain Δ 43.9
Residues
ALA40 ALA48 ASN41 GLN42 GLU43 GLY23 GLY25 GLY47 ILE46 LEU31 LEU39 LYS127 LYS26 PHE38 SER27 SER28 THR44

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 overlap11Native recall0.52
Jaccard0.41RMSD-
HB strict6Strict recall0.40
HB same residue+role5HB role recall0.45
HB same residue5HB residue recall0.45

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
475 3.856424182300619 -1.03725 -30.7681 11 17 11 0.52 0.45 - no Current
449 3.876013318630166 -1.16795 -31.721 5 21 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 -30.768kcal/mol
Ligand efficiency (LE) -1.0610kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.128
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 410.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.48
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 43.92kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 109.53kcal/mol
Minimised FF energy 65.61kcal/mol

SASA & burial

✓ computed
SASA (unbound) 604.7Ų
Total solvent-accessible surface area of free ligand
BSA total 527.0Ų
Buried surface area upon binding
BSA apolar 373.7Ų
Hydrophobic contacts buried
BSA polar 153.3Ų
Polar contacts buried
Fraction buried 87.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 70.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1318.9Ų
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 500.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)