FAIRMol

KB_chagas_132

Pose ID 6191 Compound 108 Pose 95

DB fairmolDocking pose analysis is being read from this database.
Compound detail Protein structures Back to compounds
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T10
L. infantum R5P L. infantum
Ligand KB_chagas_132

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
24.1 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.71, Jaccard 0.57, H-bond role recall 0.36
Burial
63%
Hydrophobic fit
74%
Reason: no major geometry red flags detected
2 protein-contact clashes 46% of hydrophobic surface appears solvent-exposed (12/26 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 (-0.700 kcal/mol/HA) ✓ Good fit quality (FQ -7.01) ✓ Strong H-bond network (8 bonds) ✓ Good burial (63% SASA buried) ✓ Lipophilic contacts well-matched (74%) ✗ High strain energy (24.1 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (15)
Score
-23.808
kcal/mol
LE
-0.700
kcal/mol/HA
Fit Quality
-7.01
FQ (Leeson)
HAC
34
heavy atoms
MW
476
Da
LogP
2.21
cLogP
Final rank
3.6099
rank score
Inter norm
-0.796
normalised
Contacts
16
H-bonds 8
Strain ΔE
24.1 kcal/mol
SASA buried
63%
Lipo contact
74% BSA apolar/total
SASA unbound
769 Ų
Apolar buried
359 Ų

Interaction summary

HBA 8 HY 3 PI 3 CLASH 2

HBD/HBA · H-bonds (geometric)
HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 5.

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: permissive.
Name6FXWContacts17
PoseOpen native poseHB0
IFP residues
ALA15 ARG116 ARG140 ARG144 ASN106 ASP13 CYS72 GLY73 GLY75 GLY77 HIS105 HIS14 HIS141 ILE76 LEU101 THR74 TYR49
Current overlap12Native recall0.71
Jaccard0.57RMSD-
HB strict6Strict recall0.46
HB same residue+role4HB role recall0.36
HB same residue4HB residue recall0.36

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
116 0.9967124239667426 -0.835107 -24.9422 1 19 0 0.00 0.00 - no Open
145 1.3995751921199313 -0.88415 -27.5642 3 16 0 0.00 0.00 - no Open
182 1.4861130235883124 -0.855269 -26.7745 4 22 0 0.00 0.00 - no Open
140 1.615020829250697 -0.925503 -28.3157 6 17 0 0.00 0.00 - no Open
161 2.662027008092362 -0.751934 -23.4535 3 14 0 0.00 0.00 - no Open
149 3.0092960382301914 -0.757482 -21.0618 2 22 0 0.00 0.00 - no Open
117 3.133913752613804 -0.893126 -27.6382 10 20 5 0.29 0.18 - no Open
92 3.1897154297188073 -0.7343 -24.0617 7 15 0 0.00 0.00 - no Open
109 3.266242765469782 -0.81009 -22.6151 5 16 0 0.00 0.00 - no Open
95 3.6098926606982675 -0.795677 -23.8078 8 16 12 0.71 0.36 - no Current
150 3.6690791561020983 -0.768661 -24.4817 6 18 0 0.00 0.00 - no Open
91 3.8086261390469938 -0.740979 -20.0503 5 21 0 0.00 0.00 - no Open
124 4.692634237226219 -0.64544 -22.9491 7 15 0 0.00 0.00 - no Open
103 4.725842136853786 -0.76159 -22.4824 5 18 0 0.00 0.00 - no Open
118 4.790784883872673 -0.731769 -21.8142 8 17 0 0.00 0.00 - no Open
73 4.7962875837914805 -1.009 -30.2636 11 20 5 0.29 0.27 - no Open
46 5.044122438992116 -0.80531 -23.3978 7 15 12 0.71 0.36 - no Open
87 5.0598912182116695 -0.712441 -22.3133 4 21 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 -23.808kcal/mol
Ligand efficiency (LE) -0.7002kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.006
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 34HA

Physicochemical properties
Molecular weight 475.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.21
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)
Strain energy (ΔE) 24.14kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 49.21kcal/mol
Minimised FF energy 25.07kcal/mol

SASA & burial

✓ computed
SASA (unbound) 768.9Ų
Total solvent-accessible surface area of free ligand
BSA total 484.4Ų
Buried surface area upon binding
BSA apolar 359.1Ų
Hydrophobic contacts buried
BSA polar 125.3Ų
Polar contacts buried
Fraction buried 63.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 74.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2329.9Ų
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 698.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)