FAIRMol

Z49558969

Pose ID 14688 Compound 2252 Pose 450

DB SELECTIONDocking 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 Z49558969

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 high Native strong SASA done
Strain ΔE
26.9 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.71, Jaccard 0.58, H-bond role recall 0.27
Burial
90%
Hydrophobic fit
80%
Reason: no major geometry red flags detected
1 protein-contact clashes 56% of hydrophobic surface appears solvent-exposed (10/18 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 (-1.044 kcal/mol/HA) ✓ Good fit quality (FQ -9.49) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (90% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ High strain energy (26.9 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-26.090
kcal/mol
LE
-1.044
kcal/mol/HA
Fit Quality
-9.49
FQ (Leeson)
HAC
25
heavy atoms
MW
338
Da
LogP
2.54
cLogP
Final rank
1.7330
rank score
Inter norm
-1.224
normalised
Contacts
20
H-bonds 8
Strain ΔE
26.9 kcal/mol
SASA buried
90%
Lipo contact
80% BSA apolar/total
SASA unbound
611 Ų
Apolar buried
438 Ų

Interaction summary

HBD 2 HBA 5 HY 1 PI 1 CLASH 1

HBD/HBA · H-bonds (geometric)

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

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: 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 overlap15Native recall0.71
Jaccard0.58RMSD-
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
450 1.7329626610602118 -1.22416 -26.0896 8 20 15 0.71 0.27 - no Current
404 3.2772017083554004 -1.12288 -27.0171 8 13 0 0.00 0.00 - no Open
514 3.4692528874502706 -1.06492 -26.855 5 12 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 -26.090kcal/mol
Ligand efficiency (LE) -1.0436kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.487
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties

Molecular weight 338.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.54
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 26.87kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 88.65kcal/mol
Minimised FF energy 61.77kcal/mol

SASA & burial

✓ computed
SASA (unbound) 610.5Ų
Total solvent-accessible surface area of free ligand
BSA total 546.4Ų
Buried surface area upon binding
BSA apolar 438.5Ų
Hydrophobic contacts buried
BSA polar 107.9Ų
Polar contacts buried
Fraction buried 89.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1354.9Ų
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 499.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)