FAIRMol

Z33305260

Pose ID 14769 Compound 4864 Pose 531

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 Z33305260

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
84.5 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.76, Jaccard 0.62, H-bond role recall 0.73
Burial
82%
Hydrophobic fit
64%
Reason: strain 84.5 kcal/mol
strain ΔE 84.5 kcal/mol 3 protein-contact clashes 3 intramolecular clashes 79% of hydrophobic surface is solvent-exposed (15/19 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
Cat. 3 — Harmful (10–100 mg/L)
Daphnia EC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Algae IC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG High Ames Clear DILI Low
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.748 kcal/mol/HA) ✓ Good fit quality (FQ -7.29) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (82% SASA buried) ✓ Lipophilic contacts well-matched (64%) ✗ Extreme strain energy (84.5 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-23.188
kcal/mol
LE
-0.748
kcal/mol/HA
Fit Quality
-7.29
FQ (Leeson)
HAC
31
heavy atoms
MW
464
Da
LogP
3.62
cLogP
Final rank
4.3691
rank score
Inter norm
-1.016
normalised
Contacts
21
H-bonds 14
Strain ΔE
84.5 kcal/mol
SASA buried
82%
Lipo contact
64% BSA apolar/total
SASA unbound
706 Ų
Apolar buried
371 Ų

Interaction summary

HBD 2 HBA 7 HY 1 PI 1 CLASH 3

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 8.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

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 overlap16Native recall0.76
Jaccard0.62RMSD-
HB strict10Strict recall0.67
HB same residue+role8HB role recall0.73
HB same residue8HB residue recall0.73

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
120 1.614569869255919 -0.669416 -15.982 6 16 0 0.00 0.00 - no Open
99 4.091520828763953 -1.00638 -23.5555 13 21 16 0.76 0.64 - no Open
531 4.369056809288307 -1.01642 -23.1883 14 21 16 0.76 0.73 - no Current
61 4.977878823863977 -1.01627 -24.7884 14 21 16 0.76 0.73 - 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 -23.188kcal/mol
Ligand efficiency (LE) -0.7480kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.287
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 31HA

Physicochemical properties

Molecular weight 464.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.62
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 84.46kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 67.50kcal/mol
Minimised FF energy -16.96kcal/mol

SASA & burial

✓ computed
SASA (unbound) 705.8Ų
Total solvent-accessible surface area of free ligand
BSA total 577.8Ų
Buried surface area upon binding
BSA apolar 370.8Ų
Hydrophobic contacts buried
BSA polar 207.0Ų
Polar contacts buried
Fraction buried 81.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 64.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1337.3Ų
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 505.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)