FAIRMol

Z56849599

Pose ID 14845 Compound 46 Pose 607

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 Z56849599

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
22.9 kcal/mol
Protein clashes
9
Internal clashes
9
Native overlap
contact recall 0.57, Jaccard 0.43, H-bond role recall 0.36
Burial
82%
Hydrophobic fit
76%
Reason: 9 protein-contact clashes, 9 internal clashes
9 protein-contact clashes 9 intramolecular clashes 37% of hydrophobic surface appears solvent-exposed (7/19 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 (-1.072 kcal/mol/HA) ✓ Good fit quality (FQ -10.00) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (82% SASA buried) ✓ Lipophilic contacts well-matched (76%) ✗ High strain energy (22.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (11)
Score
-28.939
kcal/mol
LE
-1.072
kcal/mol/HA
Fit Quality
-10.00
FQ (Leeson)
HAC
27
heavy atoms
MW
417
Da
LogP
4.51
cLogP
Strain ΔE
22.9 kcal/mol
SASA buried
82%
Lipo contact
76% BSA apolar/total
SASA unbound
618 Ų
Apolar buried
384 Ų

Interaction summary

HB 10 HY 4 PI 0 CLASH 9 ⚠ Exposure 36%

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

No pi · π–π interactions detected for this pose.

HY · Hydrophobic contacts

CLASH · Clashes

⚠️Partial hydrophobic solvent exposure
37% of hydrophobic surface appears solvent-exposed (7/19 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 19 Buried (contacted) 12 Exposed 7 LogP 4.51 H-bonds 10
Exposed fragments: phenyl (3/5 atoms exposed)phenyl (6/6 atoms exposed)
Final rank3.999Score-28.939
Inter norm-1.222Intra norm0.150
Top1000noExcludedno
Contacts19H-bonds10
Artifact reasongeometry warning; 11 clashes; 2 protein clashes; moderate strain Δ 22.9
Residues
ALA24 ALA70 ASN41 ASP68 GLN42 GLU21 GLU43 GLU73 GLY23 GLY25 GLY47 GLY71 LYS127 LYS26 SER22 SER27 SER28 THR44 THR69

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 overlap12Native recall0.57
Jaccard0.43RMSD-
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
597 0.6640614952139893 -0.977124 -27.6842 2 17 0 0.00 0.00 - no Open
580 0.9038309412884264 -0.905331 -23.8593 0 17 0 0.00 0.00 - no Open
587 1.884441831644803 -1.32864 -37.842 5 20 0 0.00 0.00 - no Open
612 2.292126539421007 -0.903342 -25.3788 7 17 0 0.00 0.00 - no Open
603 2.355909460894976 -0.876448 -21.989 3 15 0 0.00 0.00 - no Open
607 3.9993046300034925 -1.22165 -28.9394 10 19 12 0.57 0.36 - no Current
598 5.264689604629017 -1.03745 -28.3885 10 19 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 -28.939kcal/mol
Ligand efficiency (LE) -1.0718kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.000
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 416.9Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.51
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 22.88kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 10.02kcal/mol
Minimised FF energy -12.86kcal/mol

SASA & burial

✓ computed
SASA (unbound) 617.7Ų
Total solvent-accessible surface area of free ligand
BSA total 507.6Ų
Buried surface area upon binding
BSA apolar 384.5Ų
Hydrophobic contacts buried
BSA polar 123.2Ų
Polar contacts buried
Fraction buried 82.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 75.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1320.3Ų
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 530.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)