FAIRMol

Z45537946

Pose ID 14822 Compound 3530 Pose 584

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 Z45537946

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
23.4 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.90, Jaccard 0.86, H-bond role recall 0.36
Burial
86%
Hydrophobic fit
71%
Reason: no major geometry red flags detected
1 protein-contact clashes 54% of hydrophobic surface appears solvent-exposed (7/13 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 (-1.511 kcal/mol/HA) ✓ Good fit quality (FQ -13.12) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (86% SASA buried) ✓ Lipophilic contacts well-matched (71%) ✗ High strain energy (23.4 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (6)
Score
-33.245
kcal/mol
LE
-1.511
kcal/mol/HA
Fit Quality
-13.12
FQ (Leeson)
HAC
22
heavy atoms
MW
344
Da
LogP
0.95
cLogP
Final rank
3.4621
rank score
Inter norm
-1.554
normalised
Contacts
20
H-bonds 8
Strain ΔE
23.4 kcal/mol
SASA buried
86%
Lipo contact
71% BSA apolar/total
SASA unbound
560 Ų
Apolar buried
344 Ų

Interaction summary

HBD 1 HBA 5 HY 2 PI 1 CLASH 1

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. 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: 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
Jaccard0.86RMSD-
HB strict6Strict recall0.40
HB same residue+role4HB role recall0.36
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
591 2.5391141885619666 -1.12169 -24.8686 8 15 0 0.00 0.00 - no Open
568 2.805370864558984 -1.36184 -28.2203 12 19 0 0.00 0.00 - no Open
584 3.4621021031939097 -1.55417 -33.2451 8 20 19 0.90 0.36 - no Current
572 4.314204209146781 -1.18549 -24.4621 14 15 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 -33.245kcal/mol
Ligand efficiency (LE) -1.5111kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -13.120
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 22HA

Physicochemical properties

Molecular weight 344.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 0.95
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 23.37kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -148.38kcal/mol
Minimised FF energy -171.75kcal/mol

SASA & burial

✓ computed
SASA (unbound) 560.1Ų
Total solvent-accessible surface area of free ligand
BSA total 484.5Ų
Buried surface area upon binding
BSA apolar 344.5Ų
Hydrophobic contacts buried
BSA polar 140.0Ų
Polar contacts buried
Fraction buried 86.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 71.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1249.0Ų
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 506.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)