FAIRMol

Z57176222

Pose ID 14779 Compound 529 Pose 541

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 Z57176222

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
25.1 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.71, Jaccard 0.62, H-bond role recall 0.36
Burial
92%
Hydrophobic fit
63%
Reason: no major geometry red flags detected
1 protein-contact clashes 40% of hydrophobic surface appears solvent-exposed (6/15 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 (-1.367 kcal/mol/HA) ✓ Good fit quality (FQ -11.87) ✓ Strong H-bond network (11 bonds) ✓ Deep burial (92% SASA buried) ✓ Lipophilic contacts well-matched (63%) ✗ High strain energy (25.1 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-30.079
kcal/mol
LE
-1.367
kcal/mol/HA
Fit Quality
-11.87
FQ (Leeson)
HAC
22
heavy atoms
MW
302
Da
LogP
1.99
cLogP
Strain ΔE
25.1 kcal/mol
SASA buried
92%
Lipo contact
63% BSA apolar/total
SASA unbound
483 Ų
Apolar buried
279 Ų

Interaction summary

HB 11 HY 2 PI 1 CLASH 1 ⚠ Exposure 40%

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

⚠️Partial hydrophobic solvent exposure
40% of hydrophobic surface appears solvent-exposed (6/15 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 15 Buried (contacted) 9 Exposed 6 LogP 1.99 H-bonds 11
Exposed fragments: phenyl (6/6 atoms exposed)
Final rank5.152Score-30.079
Inter norm-1.445Intra norm0.078
Top1000noExcludedno
Contacts18H-bonds11
Artifact reasongeometry warning; 10 clashes; 5 protein clashes; moderate strain Δ 25.1
Residues
ALA24 ALA40 ASN126 ASN41 GLN42 GLU73 GLY23 GLY25 GLY71 LEU39 LYS127 LYS26 PHE38 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 overlap15Native recall0.71
Jaccard0.62RMSD-
HB strict4Strict recall0.27
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
559 0.7198418180090042 -0.933488 -20.4818 6 9 0 0.00 0.00 - no Open
525 2.4172194168614993 -1.48041 -32.0363 9 18 0 0.00 0.00 - no Open
512 2.545937422647049 -1.61802 -34.0323 11 17 0 0.00 0.00 - no Open
567 2.9952729829901434 -1.24945 -25.8165 9 18 0 0.00 0.00 - no Open
524 3.422947619134114 -1.36673 -26.6001 13 17 0 0.00 0.00 - no Open
550 3.750956682432338 -1.21808 -25.8403 6 12 0 0.00 0.00 - no Open
582 4.472569139535506 -1.15982 -25.4195 9 12 0 0.00 0.00 - no Open
529 4.491059808940537 -1.52163 -29.8977 11 17 0 0.00 0.00 - no Open
541 5.152210004952779 -1.44518 -30.0794 11 18 15 0.71 0.36 - 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 -30.079kcal/mol
Ligand efficiency (LE) -1.3672kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.870
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 22HA

Physicochemical properties

Molecular weight 302.2Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.99
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 25.15kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 95.98kcal/mol
Minimised FF energy 70.83kcal/mol

SASA & burial

✓ computed
SASA (unbound) 483.4Ų
Total solvent-accessible surface area of free ligand
BSA total 445.6Ų
Buried surface area upon binding
BSA apolar 279.4Ų
Hydrophobic contacts buried
BSA polar 166.2Ų
Polar contacts buried
Fraction buried 92.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 62.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1169.3Ų
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 512.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)