FAIRMol

OHD_TB2022_32

Pose ID 14281 Compound 555 Pose 43

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 OHD_TB2022_32

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
84.9 kcal/mol
Protein clashes
0
Internal clashes
5
Native overlap
contact recall 0.90, Jaccard 0.83, H-bond role recall 0.64
Burial
91%
Hydrophobic fit
53%
Reason: strain 84.9 kcal/mol
strain ΔE 84.9 kcal/mol 5 intramolecular clashes 45% of hydrophobic surface appears solvent-exposed (5/11 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 (-1.354 kcal/mol/HA) ✓ Good fit quality (FQ -12.78) ✓ Strong H-bond network (16 bonds) ✓ Deep burial (91% SASA buried) ✗ Extreme strain energy (84.9 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (5)
Score
-37.909
kcal/mol
LE
-1.354
kcal/mol/HA
Fit Quality
-12.78
FQ (Leeson)
HAC
28
heavy atoms
MW
443
Da
LogP
-2.27
cLogP
Strain ΔE
84.9 kcal/mol
SASA buried
91%
Lipo contact
53% BSA apolar/total
SASA unbound
648 Ų
Apolar buried
312 Ų

Interaction summary

HB 16 HY 3 PI 1 CLASH 0 ⚠ Exposure 45%

HB · H-bonds

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

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.
⚠️Partial hydrophobic solvent exposure
45% of hydrophobic surface appears solvent-exposed (5/11 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 11 Buried (contacted) 6 Exposed 5 LogP -2.27 H-bonds 16
Exposed fragments: aliphatic chain/group (5 atoms exposed)
Final rank4.173Score-37.909
Inter norm-1.499Intra norm0.145
Top1000noExcludedno
Contacts21H-bonds16
Artifact reasongeometry warning; 5 clashes; 4 protein clashes; high strain Δ 70.8
Residues
ALA158 ALA24 ASN126 ASP129 GLN42 GLU21 GLU73 GLY23 GLY25 LEU130 LEU31 LEU39 LYS127 LYS159 LYS26 PHE38 SER157 SER22 SER27 SER28 THR44

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 overlap19Native recall0.90
Jaccard0.83RMSD-
HB strict9Strict recall0.60
HB same residue+role7HB role recall0.64
HB same residue7HB residue recall0.64

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
42 0.8989299752623506 -1.26856 -30.9822 4 12 0 0.00 0.00 - no Open
71 1.5801052430540334 -1.01131 -29.2316 16 18 0 0.00 0.00 - no Open
70 1.60132418319177 -0.936258 -26.4623 8 20 0 0.00 0.00 - no Open
64 2.0505650579125 -1.23076 -23.3015 11 18 0 0.00 0.00 - no Open
63 2.3502887813057387 -1.0428 -13.8344 9 20 0 0.00 0.00 - no Open
81 3.240535762876825 -0.962735 -16.0402 11 18 0 0.00 0.00 - no Open
60 3.6631475468222012 -0.754843 -7.77728 11 14 0 0.00 0.00 - no Open
56 3.675610673525081 -0.999244 -14.1763 16 16 0 0.00 0.00 - no Open
75 3.7683605221794902 -0.958447 -21.714 10 20 0 0.00 0.00 - no Open
43 4.172514585544348 -1.49933 -37.9089 16 21 19 0.90 0.64 - no Current
70 4.45776064754174 -0.739553 -22.7032 10 12 0 0.00 0.00 - no Open
56 4.64794465457073 -1.04399 -18.6626 15 15 0 0.00 0.00 - no Open
41 5.071666184180568 -0.896731 -29.8785 16 16 0 0.00 0.00 - no Open
26 5.1433613498224355 -0.882633 -21.1222 16 14 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 -37.909kcal/mol
Ligand efficiency (LE) -1.3539kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.781
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 28HA

Physicochemical properties

Molecular weight 443.2Da
Lipinski: ≤ 500 Da
LogP (cLogP) -2.27
Lipinski: ≤ 5
Rotatable bonds 13

Conformational strain (MMFF94s)

Strain energy (ΔE) 84.94kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 65.82kcal/mol
Minimised FF energy -19.12kcal/mol

SASA & burial

✓ computed
SASA (unbound) 648.2Ų
Total solvent-accessible surface area of free ligand
BSA total 587.5Ų
Buried surface area upon binding
BSA apolar 311.8Ų
Hydrophobic contacts buried
BSA polar 275.7Ų
Polar contacts buried
Fraction buried 90.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 53.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1235.5Ų
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 487.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)