FAIRMol

Z49604116

Pose ID 6438 Compound 3488 Pose 342

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T10
L. infantum R5P L. infantum
Ligand Z49604116

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
42.1 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 1.00, Jaccard 0.89, H-bond role recall 0.45
Burial
72%
Hydrophobic fit
75%
Reason: strain 42.1 kcal/mol
strain ΔE 42.1 kcal/mol 4 protein-contact clashes 4 intramolecular clashes 61% of hydrophobic surface is solvent-exposed (11/18 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.923 kcal/mol/HA) ✓ Good fit quality (FQ -8.71) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (72% SASA buried) ✓ Lipophilic contacts well-matched (75%) ✗ Extreme strain energy (42.1 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (6)
Score
-25.849
kcal/mol
LE
-0.923
kcal/mol/HA
Fit Quality
-8.71
FQ (Leeson)
HAC
28
heavy atoms
MW
407
Da
LogP
2.17
cLogP
Final rank
3.6577
rank score
Inter norm
-0.983
normalised
Contacts
19
H-bonds 11
Strain ΔE
42.1 kcal/mol
SASA buried
72%
Lipo contact
75% BSA apolar/total
SASA unbound
685 Ų
Apolar buried
371 Ų

Interaction summary

HBD 2 HBA 5 HY 3 PI 1 CLASH 4

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 7.

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.
Name6FXWContacts17
PoseOpen native poseHB0
IFP residues
ALA15 ARG116 ARG140 ARG144 ASN106 ASP13 CYS72 GLY73 GLY75 GLY77 HIS105 HIS14 HIS141 ILE76 LEU101 THR74 TYR49
Current overlap17Native recall1.00
Jaccard0.89RMSD-
HB strict5Strict recall0.38
HB same residue+role5HB role recall0.45
HB same residue7HB residue recall0.64

Protein summary

155 residues
Protein targetT10Atoms4590
Residues155Chains1
Residue summaryILE:494; ARG:384; ALA:360; VAL:352; LEU:304; GLU:300; THR:280; MET:272; LYS:220; ASP:216; TYR:210; HIS:204; GLY:182; SER:176; GLN:170; ASN:140

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
342 3.6576591342375977 -0.982614 -25.8494 11 19 17 1.00 0.45 - no Current
367 4.435810177283411 -0.895643 -28.6177 9 10 0 0.00 0.00 - no Open
391 4.7777720135082005 -0.736984 -18.59 11 11 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 -25.849kcal/mol
Ligand efficiency (LE) -0.9232kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.715
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 28HA

Physicochemical properties

Molecular weight 407.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.17
Lipinski: ≤ 5
Rotatable bonds 10

Conformational strain (MMFF94s)

Strain energy (ΔE) 42.12kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 35.45kcal/mol
Minimised FF energy -6.67kcal/mol

SASA & burial

✓ computed
SASA (unbound) 685.1Ų
Total solvent-accessible surface area of free ligand
BSA total 494.3Ų
Buried surface area upon binding
BSA apolar 371.5Ų
Hydrophobic contacts buried
BSA polar 122.9Ų
Polar contacts buried
Fraction buried 72.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 75.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2273.9Ų
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 2417.4Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 659.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)