FAIRMol

Z29466897

Pose ID 14738 Compound 3918 Pose 500

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 Z29466897

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
42.8 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.67, Jaccard 0.64, H-bond role recall 0.45
Burial
83%
Hydrophobic fit
66%
Reason: strain 42.8 kcal/mol
strain ΔE 42.8 kcal/mol 1 protein-contact clashes 50% of hydrophobic surface appears solvent-exposed (8/16 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 (-1.562 kcal/mol/HA) ✓ Good fit quality (FQ -14.20) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (83% SASA buried) ✓ Lipophilic contacts well-matched (66%) ✗ Extreme strain energy (42.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-39.039
kcal/mol
LE
-1.562
kcal/mol/HA
Fit Quality
-14.20
FQ (Leeson)
HAC
25
heavy atoms
MW
349
Da
LogP
2.82
cLogP
Final rank
4.3128
rank score
Inter norm
-1.199
normalised
Contacts
15
H-bonds 12
Strain ΔE
42.8 kcal/mol
SASA buried
83%
Lipo contact
66% BSA apolar/total
SASA unbound
572 Ų
Apolar buried
316 Ų

Interaction summary

HBA 8 HY 2 PI 1 CLASH 1

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 4.

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 overlap14Native recall0.67
Jaccard0.64RMSD-
HB strict6Strict recall0.40
HB same residue+role5HB role recall0.45
HB same residue5HB residue recall0.45

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
480 1.1779370265296099 -1.34243 -35.6626 8 17 0 0.00 0.00 - no Open
499 1.5926376860446014 -0.835843 -26.5148 10 8 0 0.00 0.00 - no Open
79 1.8700705262766413 -1.33218 -33.8612 8 16 0 0.00 0.00 - no Open
112 2.7308188656536694 -0.835416 -15.7613 9 8 0 0.00 0.00 - no Open
61 2.8164757275131813 -1.208 -40.2703 14 13 0 0.00 0.00 - no Open
69 3.834668592548584 -1.14556 -29.3213 11 17 0 0.00 0.00 - no Open
481 3.9191761234848834 -1.15042 -31.911 12 17 0 0.00 0.00 - no Open
500 4.3128468703548055 -1.19922 -39.0386 12 15 14 0.67 0.45 - 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 -39.039kcal/mol
Ligand efficiency (LE) -1.5615kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -14.196
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties

Molecular weight 349.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.82
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 42.84kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 82.44kcal/mol
Minimised FF energy 39.61kcal/mol

SASA & burial

✓ computed
SASA (unbound) 572.1Ų
Total solvent-accessible surface area of free ligand
BSA total 476.5Ų
Buried surface area upon binding
BSA apolar 315.7Ų
Hydrophobic contacts buried
BSA polar 160.8Ų
Polar contacts buried
Fraction buried 83.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 66.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1256.8Ų
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 517.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)