FAIRMol

Z31413736

Pose ID 14831 Compound 3514 Pose 593

DB fairmolDocking 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 Z31413736

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
30.8 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.86, Jaccard 0.75, H-bond role recall 0.45
Burial
92%
Hydrophobic fit
62%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes 54% of hydrophobic surface appears solvent-exposed (7/13 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 (-1.114 kcal/mol/HA) ✓ Good fit quality (FQ -9.99) ✓ Strong H-bond network (11 bonds) ✓ Deep burial (92% SASA buried) ✓ Lipophilic contacts well-matched (62%) ✗ Very high strain energy (30.8 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-26.742
kcal/mol
LE
-1.114
kcal/mol/HA
Fit Quality
-9.99
FQ (Leeson)
HAC
24
heavy atoms
MW
390
Da
LogP
0.89
cLogP
Strain ΔE
30.8 kcal/mol
SASA buried
92%
Lipo contact
62% BSA apolar/total
SASA unbound
594 Ų
Apolar buried
339 Ų

Interaction summary

HB 11 HY 5 PI 1 CLASH 3 ⚠ Exposure 53%

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
54% of hydrophobic surface appears solvent-exposed (7/13 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 13 Buried (contacted) 6 Exposed 7 LogP 0.89 H-bonds 11
Exposed fragments: phenyl (6/6 atoms exposed)aliphatic chain/group (1 atom exposed)
Final rank3.735Score-26.742
Inter norm-1.421Intra norm0.307
Top1000noExcludedno
Contacts21H-bonds11
Artifact reasongeometry warning; 9 clashes; 2 protein clashes; high strain Δ 30.8
Residues
ALA158 ALA24 ASN126 ASP129 GLN42 GLU21 GLU73 GLY23 GLY25 GLY71 LEU130 LYS127 LYS159 LYS26 PHE38 SER157 SER22 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 overlap18Native recall0.86
Jaccard0.75RMSD-
HB strict6Strict recall0.40
HB same residue+role5HB role recall0.45
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
593 3.7354699627388626 -1.4208 -26.7416 11 21 18 0.86 0.45 - no Current
580 4.025960175151159 -0.986819 -19.9183 14 16 0 0.00 0.00 - no Open
597 4.400529884772353 -0.977976 -20.7072 7 17 0 0.00 0.00 - no Open
589 4.415742123828827 -1.00117 -22.6809 7 13 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 -26.742kcal/mol
Ligand efficiency (LE) -1.1142kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.986
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 389.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 0.89
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 30.83kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -149.30kcal/mol
Minimised FF energy -180.12kcal/mol

SASA & burial

✓ computed
SASA (unbound) 593.7Ų
Total solvent-accessible surface area of free ligand
BSA total 545.5Ų
Buried surface area upon binding
BSA apolar 339.0Ų
Hydrophobic contacts buried
BSA polar 206.5Ų
Polar contacts buried
Fraction buried 91.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 62.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1235.2Ų
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 504.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)