FAIRMol

Z49576389

Pose ID 14709 Compound 3847 Pose 471

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 Z49576389

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 strong SASA done
Strain ΔE
60.3 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.95, Jaccard 0.91, H-bond role recall 0.55
Burial
80%
Hydrophobic fit
67%
Reason: strain 60.3 kcal/mol
strain ΔE 60.3 kcal/mol 1 protein-contact clashes 35% of hydrophobic surface appears solvent-exposed (7/20 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 (-1.054 kcal/mol/HA) ✓ Good fit quality (FQ -10.37) ✓ Strong H-bond network (14 bonds) ✓ Deep burial (80% SASA buried) ✓ Lipophilic contacts well-matched (67%) ✗ Extreme strain energy (60.3 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (11)
Score
-33.735
kcal/mol
LE
-1.054
kcal/mol/HA
Fit Quality
-10.37
FQ (Leeson)
HAC
32
heavy atoms
MW
470
Da
LogP
3.49
cLogP
Strain ΔE
60.3 kcal/mol
SASA buried
80%
Lipo contact
67% BSA apolar/total
SASA unbound
726 Ų
Apolar buried
391 Ų

Interaction summary

HB 14 HY 9 PI 1 CLASH 1 ⚠ Exposure 35%

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
35% of hydrophobic surface appears solvent-exposed (7/20 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 20 Buried (contacted) 13 Exposed 7 LogP 3.49 H-bonds 14
Exposed fragments: phenyl (6/6 atoms exposed)aliphatic chain/group (1 atom exposed)
Final rank5.109Score-33.735
Inter norm-1.109Intra norm0.055
Top1000noExcludedno
Contacts21H-bonds14
Artifact reasongeometry warning; 11 clashes; 4 protein clashes; high strain Δ 60.3
Residues
ALA158 ALA24 ALA40 ASN126 ASN41 ASP129 GLN42 GLU73 GLY23 GLY25 LEU130 LEU39 LYS127 LYS159 LYS26 PHE38 SER157 SER22 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 overlap20Native recall0.95
Jaccard0.91RMSD-
HB strict9Strict recall0.60
HB same residue+role6HB role recall0.55
HB same residue6HB residue recall0.55

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
456 1.5507182868313292 -0.839005 -28.2282 10 19 0 0.00 0.00 - no Open
470 2.3832563963030142 -0.76411 -23.5694 12 12 0 0.00 0.00 - no Open
541 2.7471300472708453 -0.779373 -19.0294 4 13 0 0.00 0.00 - no Open
471 5.10850829592626 -1.10912 -33.7346 14 21 20 0.95 0.55 - no Current

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -33.735kcal/mol
Ligand efficiency (LE) -1.0542kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.367
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties

Molecular weight 469.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.49
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 60.28kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 51.84kcal/mol
Minimised FF energy -8.44kcal/mol

SASA & burial

✓ computed
SASA (unbound) 726.5Ų
Total solvent-accessible surface area of free ligand
BSA total 582.9Ų
Buried surface area upon binding
BSA apolar 391.2Ų
Hydrophobic contacts buried
BSA polar 191.7Ų
Polar contacts buried
Fraction buried 80.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 67.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1345.9Ų
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 534.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)