FAIRMol

ulfkktlib_439

Pose ID 14406 Compound 3192 Pose 168

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 ulfkktlib_439

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Likely artefact or unreliable pose
Binding strong Geometry medium Native strong SASA done
Strain ΔE
42.0 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.90, Jaccard 0.70, H-bond role recall 0.27
Burial
93%
Hydrophobic fit
90%
Reason: no major geometry red flags detected
2 protein-contact clashes 42% of hydrophobic surface appears solvent-exposed (11/26 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 (-0.887 kcal/mol/HA) ✓ Good fit quality (FQ -8.80) ✓ Good H-bonds (3 bonds) ✓ Deep burial (93% SASA buried) ✓ Lipophilic contacts well-matched (90%) ✗ Extreme strain energy (42.0 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-29.276
kcal/mol
LE
-0.887
kcal/mol/HA
Fit Quality
-8.80
FQ (Leeson)
HAC
33
heavy atoms
MW
445
Da
LogP
1.56
cLogP
Final rank
4.0277
rank score
Inter norm
-0.939
normalised
Contacts
25
H-bonds 6
Strain ΔE
42.0 kcal/mol
SASA buried
93%
Lipo contact
90% BSA apolar/total
SASA unbound
729 Ų
Apolar buried
609 Ų

Interaction summary

HBD 1 HBA 2 HY 5 PI 1 CLASH 2

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

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 overlap19Native recall0.90
Jaccard0.70RMSD-
HB strict4Strict recall0.27
HB same residue+role3HB role recall0.27
HB same residue3HB residue recall0.27

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
170 1.039511345490578 -0.770394 -25.9281 2 19 0 0.00 0.00 - no Open
213 3.726325550996569 -0.756128 -21.4612 4 17 0 0.00 0.00 - no Open
168 4.0277132181428845 -0.938673 -29.2755 6 25 19 0.90 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 -29.276kcal/mol
Ligand efficiency (LE) -0.8871kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.802
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 444.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.56
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 41.97kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 62.60kcal/mol
Minimised FF energy 20.63kcal/mol

SASA & burial

✓ computed
SASA (unbound) 728.5Ų
Total solvent-accessible surface area of free ligand
BSA total 675.9Ų
Buried surface area upon binding
BSA apolar 608.7Ų
Hydrophobic contacts buried
BSA polar 67.2Ų
Polar contacts buried
Fraction buried 92.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 90.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1520.6Ų
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 498.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)