FAIRMol

Z56781211

Pose ID 14656 Compound 913 Pose 418

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 Z56781211

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
38.5 kcal/mol
Protein clashes
5
Internal clashes
17
Native overlap
contact recall 0.81, Jaccard 0.68, H-bond role recall 0.45
Burial
85%
Hydrophobic fit
87%
Reason: 17 internal clashes
5 protein-contact clashes 17 intramolecular clashes 50% of hydrophobic surface appears solvent-exposed (11/22 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 (-1.115 kcal/mol/HA) ✓ Good fit quality (FQ -10.64) ✓ Good H-bonds (5 bonds) ✓ Deep burial (85% SASA buried) ✓ Lipophilic contacts well-matched (87%) ✗ Very high strain energy (38.5 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (5) ✗ Many internal clashes (17)
Score
-32.330
kcal/mol
LE
-1.115
kcal/mol/HA
Fit Quality
-10.64
FQ (Leeson)
HAC
29
heavy atoms
MW
380
Da
LogP
3.75
cLogP
Final rank
1.6519
rank score
Inter norm
-1.135
normalised
Contacts
21
H-bonds 9
Strain ΔE
38.5 kcal/mol
SASA buried
85%
Lipo contact
87% BSA apolar/total
SASA unbound
639 Ų
Apolar buried
473 Ų

Interaction summary

HBA 5 HY 2 PI 1 CLASH 0

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 3.

PI · π–π interactions

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

HY · Hydrophobic contacts

CLASH · Clashes

No clash · clashes detected for this pose.

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 overlap17Native recall0.81
Jaccard0.68RMSD-
HB strict6Strict recall0.40
HB same residue+role5HB role recall0.45
HB same residue5HB residue recall0.45

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
418 1.6519417124966898 -1.13469 -32.3302 9 21 17 0.81 0.45 - no Current
399 1.8354677458848982 -1.12292 -25.9684 11 16 0 0.00 0.00 - no Open
385 2.0319683187008457 -1.26571 -36.7774 10 19 0 0.00 0.00 - no Open
475 2.2594311359412096 -1.03515 -31.9582 4 17 0 0.00 0.00 - no Open
428 2.5921100555360286 -0.755558 -24.5417 6 11 0 0.00 0.00 - no Open
394 6.047368516924349 -0.921961 -23.0042 13 16 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 -32.330kcal/mol
Ligand efficiency (LE) -1.1148kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.642
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 380.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.75
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 38.52kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 135.09kcal/mol
Minimised FF energy 96.56kcal/mol

SASA & burial

✓ computed
SASA (unbound) 639.5Ų
Total solvent-accessible surface area of free ligand
BSA total 544.5Ų
Buried surface area upon binding
BSA apolar 473.0Ų
Hydrophobic contacts buried
BSA polar 71.5Ų
Polar contacts buried
Fraction buried 85.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 86.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1403.3Ų
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 517.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)