FAIRMol

Z31819752

Pose ID 14673 Compound 982 Pose 435

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 Z31819752

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
41.4 kcal/mol
Protein clashes
7
Internal clashes
7
Native overlap
contact recall 0.90, Jaccard 0.68, H-bond role recall 0.36
Burial
88%
Hydrophobic fit
82%
Reason: 7 internal clashes
7 protein-contact clashes 7 intramolecular clashes 44% of hydrophobic surface appears solvent-exposed (11/25 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 (-0.915 kcal/mol/HA) ✓ Good fit quality (FQ -9.08) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (88% SASA buried) ✓ Lipophilic contacts well-matched (82%) ✗ Extreme strain energy (41.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (14)
Score
-30.194
kcal/mol
LE
-0.915
kcal/mol/HA
Fit Quality
-9.08
FQ (Leeson)
HAC
33
heavy atoms
MW
466
Da
LogP
3.85
cLogP
Strain ΔE
41.4 kcal/mol
SASA buried
88%
Lipo contact
82% BSA apolar/total
SASA unbound
752 Ų
Apolar buried
543 Ų

Interaction summary

HB 10 HY 9 PI 0 CLASH 7 ⚠ Exposure 44%

HB · H-bonds

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

PI · π–π interactions

No pi · π–π interactions detected for this pose.

HY · Hydrophobic contacts

CLASH · Clashes

⚠️Partial hydrophobic solvent exposure
44% of hydrophobic surface appears solvent-exposed (11/25 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 25 Buried (contacted) 14 Exposed 11 LogP 3.85 H-bonds 10
Exposed fragments: phenyl (4/6 atoms exposed)phenyl (6/6 atoms exposed)aliphatic chain/group (1 atom exposed)
Final rank4.499Score-30.194
Inter norm-0.909Intra norm-0.006
Top1000noExcludedno
Contacts26H-bonds10
Artifact reasongeometry warning; 14 clashes; 2 protein clashes; high strain Δ 41.4
Residues
ALA158 ALA24 ALA40 ALA70 ASN126 ASN41 ASP129 ASP68 GLN42 GLU21 GLU43 GLU73 GLY23 GLY25 GLY47 GLY71 LEU130 LYS127 LYS159 LYS26 PHE38 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 overlap19Native recall0.90
Jaccard0.68RMSD-
HB strict6Strict recall0.40
HB same residue+role4HB role recall0.36
HB same residue4HB residue recall0.36

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
484 3.032910383255826 -0.789005 -26.5784 4 17 0 0.00 0.00 - no Open
435 4.499195386795661 -0.908716 -30.1943 10 26 19 0.90 0.36 - 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 -30.194kcal/mol
Ligand efficiency (LE) -0.9150kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.078
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 465.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.85
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 41.37kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 100.71kcal/mol
Minimised FF energy 59.34kcal/mol

SASA & burial

✓ computed
SASA (unbound) 752.2Ų
Total solvent-accessible surface area of free ligand
BSA total 665.3Ų
Buried surface area upon binding
BSA apolar 542.9Ų
Hydrophobic contacts buried
BSA polar 122.4Ų
Polar contacts buried
Fraction buried 88.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 81.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1490.2Ų
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 506.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)