FAIRMol

Z19315064

Pose ID 14848 Compound 1127 Pose 610

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 Z19315064

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 medium Native strong SASA done
Strain ΔE
39.1 kcal/mol
Protein clashes
5
Internal clashes
5
Native overlap
contact recall 0.90, Jaccard 0.79, H-bond role recall 0.55
Burial
88%
Hydrophobic fit
79%
Reason: no major geometry red flags detected
5 protein-contact clashes 5 intramolecular clashes 55% of hydrophobic surface appears solvent-exposed (12/22 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.001 kcal/mol/HA) ✓ Good fit quality (FQ -9.75) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (88% SASA buried) ✓ Lipophilic contacts well-matched (79%) ✗ Very high strain energy (39.1 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (14)
Score
-31.019
kcal/mol
LE
-1.001
kcal/mol/HA
Fit Quality
-9.75
FQ (Leeson)
HAC
31
heavy atoms
MW
457
Da
LogP
3.84
cLogP
Strain ΔE
39.1 kcal/mol
SASA buried
88%
Lipo contact
79% BSA apolar/total
SASA unbound
705 Ų
Apolar buried
494 Ų

Interaction summary

HB 10 HY 9 PI 1 CLASH 5 ⚠ Exposure 54%

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
55% of hydrophobic surface appears solvent-exposed (12/22 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 22 Buried (contacted) 10 Exposed 12 LogP 3.84 H-bonds 10
Exposed fragments: phenyl (6/6 atoms exposed)phenyl (5/6 atoms exposed)aliphatic chain/group (1 atom exposed)
Final rank4.375Score-31.019
Inter norm-1.066Intra norm0.066
Top1000noExcludedno
Contacts22H-bonds10
Artifact reasongeometry warning; 14 clashes; 2 protein clashes; high strain Δ 39.1
Residues
ALA158 ALA24 ALA40 ASN126 ASN41 ASP129 GLN42 GLU73 GLY23 GLY25 GLY71 LEU130 LEU39 LYS127 LYS159 LYS26 PHE38 SER157 SER27 SER28 THR44 THR69

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 overlap19Native recall0.90
Jaccard0.79RMSD-
HB strict8Strict recall0.53
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
591 1.448398973137486 -0.960184 -28.9048 2 18 0 0.00 0.00 - no Open
581 1.9786488300597957 -0.865659 -28.5707 2 17 0 0.00 0.00 - no Open
596 2.8828698978375003 -0.625605 -19.8303 4 10 0 0.00 0.00 - no Open
604 3.3008265012864664 -0.727321 -22.6133 2 21 0 0.00 0.00 - no Open
610 4.375178238702462 -1.0662 -31.019 10 22 19 0.90 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 -31.019kcal/mol
Ligand efficiency (LE) -1.0006kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.748
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 31HA

Physicochemical properties

Molecular weight 456.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.84
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 39.10kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -28.35kcal/mol
Minimised FF energy -67.45kcal/mol

SASA & burial

✓ computed
SASA (unbound) 705.0Ų
Total solvent-accessible surface area of free ligand
BSA total 623.6Ų
Buried surface area upon binding
BSA apolar 494.0Ų
Hydrophobic contacts buried
BSA polar 129.6Ų
Polar contacts buried
Fraction buried 88.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1433.3Ų
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 493.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)