FAIRMol

Z56911531

Pose ID 14689 Compound 4848 Pose 451

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 Z56911531

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
52.0 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.57, Jaccard 0.43, H-bond role recall 0.27
Burial
88%
Hydrophobic fit
72%
Reason: strain 52.0 kcal/mol
strain ΔE 52.0 kcal/mol 2 protein-contact clashes 73% of hydrophobic surface is solvent-exposed (11/15 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Not classified (>100 mg/L)
Daphnia EC₅₀
Not classified (>100 mg/L)
Algae IC₅₀
Not classified (>100 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Low Ames Clear DILI Low
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.437 kcal/mol/HA) ✓ Good fit quality (FQ -12.68) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (88% SASA buried) ✓ Lipophilic contacts well-matched (72%) ✗ Extreme strain energy (52.0 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (6)
Score
-33.050
kcal/mol
LE
-1.437
kcal/mol/HA
Fit Quality
-12.68
FQ (Leeson)
HAC
23
heavy atoms
MW
348
Da
LogP
0.89
cLogP
Final rank
2.6425
rank score
Inter norm
-1.537
normalised
Contacts
19
H-bonds 12
Strain ΔE
52.0 kcal/mol
SASA buried
88%
Lipo contact
72% BSA apolar/total
SASA unbound
539 Ų
Apolar buried
340 Ų

Interaction summary

HBD 3 HBA 4 HY 1 PI 0 CLASH 2

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 5.

PI · π–π interactions

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

HY · Hydrophobic contacts

CLASH · Clashes

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: permissive.
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 overlap12Native recall0.57
Jaccard0.43RMSD-
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
475 1.286097964273247 -0.9424 -21.5142 6 8 0 0.00 0.00 - no Open
451 2.6424987999423077 -1.53688 -33.0496 12 19 12 0.57 0.27 - 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 -33.050kcal/mol
Ligand efficiency (LE) -1.4369kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.682
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 23HA

Physicochemical properties

Molecular weight 348.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 0.89
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 52.03kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 104.63kcal/mol
Minimised FF energy 52.60kcal/mol

SASA & burial

✓ computed
SASA (unbound) 539.0Ų
Total solvent-accessible surface area of free ligand
BSA total 475.4Ų
Buried surface area upon binding
BSA apolar 339.9Ų
Hydrophobic contacts buried
BSA polar 135.6Ų
Polar contacts buried
Fraction buried 88.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 71.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1265.3Ų
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 491.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)