FAIRMol

Z44866976

Pose ID 6747 Compound 1925 Pose 651

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 Z44866976

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
57.8 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.76, Jaccard 0.76, H-bond role recall 0.36
Burial
64%
Hydrophobic fit
68%
Reason: strain 57.8 kcal/mol
strain ΔE 57.8 kcal/mol 2 protein-contact clashes 50% of hydrophobic surface appears solvent-exposed (10/20 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 (-0.486 kcal/mol/HA) ✓ Good fit quality (FQ -4.73) ✓ Strong H-bond network (11 bonds) ✓ Good burial (64% SASA buried) ✓ Lipophilic contacts well-matched (68%) ✗ Extreme strain energy (57.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-15.064
kcal/mol
LE
-0.486
kcal/mol/HA
Fit Quality
-4.73
FQ (Leeson)
HAC
31
heavy atoms
MW
449
Da
LogP
1.75
cLogP
Strain ΔE
57.8 kcal/mol
SASA buried
64%
Lipo contact
68% BSA apolar/total
SASA unbound
701 Ų
Apolar buried
301 Ų

Interaction summary

HB 11 HY 2 PI 2 CLASH 2 ⚠ Exposure 50%

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
50% of hydrophobic surface appears solvent-exposed (10/20 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 20 Buried (contacted) 10 Exposed 10 LogP 1.75 H-bonds 11
Exposed fragments: phenyl (6/6 atoms exposed)aliphatic chain/group (4 atoms exposed)
Final rank4.595Score-15.064
Inter norm-0.839Intra norm0.353
Top1000noExcludedno
Contacts13H-bonds11
Artifact reasongeometry warning; 10 clashes; 3 protein clashes; high strain Δ 56.4
Residues
ALA15 ARG116 ARG140 ARG144 ASN106 ASP13 CYS72 GLY73 HIS105 HIS14 HIS141 THR74 TYR49

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 overlap13Native recall0.76
Jaccard0.76RMSD-
HB strict6Strict recall0.46
HB same residue+role4HB role recall0.36
HB same residue5HB residue recall0.45

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
653 2.722098138210943 -0.699326 -17.7051 8 14 0 0.00 0.00 - no Open
643 2.950615041156466 -0.809494 -22.4875 7 14 0 0.00 0.00 - no Open
629 3.204630439018359 -0.928268 -27.106 6 15 0 0.00 0.00 - no Open
653 3.7390617616469473 -0.929142 -28.3549 14 17 0 0.00 0.00 - no Open
662 4.499574721337301 -1.20282 -33.9202 16 22 0 0.00 0.00 - no Open
651 4.5950468675443386 -0.839344 -15.0638 11 13 13 0.76 0.36 - no Current
644 4.7851696497644545 -0.712218 -21.0542 6 12 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 -15.064kcal/mol
Ligand efficiency (LE) -0.4859kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -4.734
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 31HA

Physicochemical properties

Molecular weight 449.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.75
Lipinski: ≤ 5
Rotatable bonds 10

Conformational strain (MMFF94s)

Strain energy (ΔE) 57.76kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 86.45kcal/mol
Minimised FF energy 28.69kcal/mol

SASA & burial

✓ computed
SASA (unbound) 701.1Ų
Total solvent-accessible surface area of free ligand
BSA total 445.3Ų
Buried surface area upon binding
BSA apolar 301.4Ų
Hydrophobic contacts buried
BSA polar 143.9Ų
Polar contacts buried
Fraction buried 63.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 67.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2233.5Ų
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 2417.4Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 673.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)