FAIRMol

Z68347375

Pose ID 14730 Compound 1338 Pose 492

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 Z68347375

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
33.9 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.86, Jaccard 0.75, H-bond role recall 0.27
Burial
84%
Hydrophobic fit
80%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes 36% of hydrophobic surface appears solvent-exposed (8/22 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 (-1.189 kcal/mol/HA) ✓ Good fit quality (FQ -11.35) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (84% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ Very high strain energy (33.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (20)
Score
-34.474
kcal/mol
LE
-1.189
kcal/mol/HA
Fit Quality
-11.35
FQ (Leeson)
HAC
29
heavy atoms
MW
384
Da
LogP
3.08
cLogP
Strain ΔE
33.9 kcal/mol
SASA buried
84%
Lipo contact
80% BSA apolar/total
SASA unbound
651 Ų
Apolar buried
439 Ų

Interaction summary

HB 7 HY 8 PI 1 CLASH 3 ⚠ Exposure 36%

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
36% of hydrophobic surface appears solvent-exposed (8/22 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 22 Buried (contacted) 14 Exposed 8 LogP 3.08 H-bonds 7
Exposed fragments: phenyl (6/6 atoms exposed)aliphatic chain/group (2 atoms exposed)
Final rank3.585Score-34.474
Inter norm-1.070Intra norm-0.118
Top1000noExcludedno
Contacts21H-bonds7
Artifact reasongeometry warning; 20 clashes; 1 protein clash; high strain Δ 33.9
Residues
ALA158 ALA24 ASN126 ASN41 ASP129 GLN42 GLU21 GLU73 GLY23 GLY25 GLY71 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 strict4Strict recall0.27
HB same residue+role3HB role recall0.27
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
490 1.7537992888862641 -1.02991 -31.929 9 16 0 0.00 0.00 - no Open
510 2.7776297499552585 -0.913277 -24.5256 6 12 0 0.00 0.00 - no Open
490 3.0102673198467875 -1.09437 -36.7781 6 14 0 0.00 0.00 - no Open
476 3.201813221844428 -1.11372 -39.2841 11 17 0 0.00 0.00 - no Open
463 3.371347263661328 -1.15929 -38.3001 5 16 0 0.00 0.00 - no Open
492 3.58544371075322 -1.07046 -34.4741 7 21 18 0.86 0.27 - no Current
495 3.7879791106918894 -0.807385 -24.528 7 15 0 0.00 0.00 - no Open
526 4.210215324924119 -0.780771 -24.0519 4 18 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 -34.474kcal/mol
Ligand efficiency (LE) -1.1888kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.348
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 384.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.08
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 33.89kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 107.82kcal/mol
Minimised FF energy 73.93kcal/mol

SASA & burial

✓ computed
SASA (unbound) 650.7Ų
Total solvent-accessible surface area of free ligand
BSA total 546.7Ų
Buried surface area upon binding
BSA apolar 439.3Ų
Hydrophobic contacts buried
BSA polar 107.4Ų
Polar contacts buried
Fraction buried 84.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1379.5Ų
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 526.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)