FAIRMol

KB_chagas_185

Pose ID 2120 Compound 1641 Pose 87

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T04
L. major PTR1 L. major
Ligand KB_chagas_185
PDB7PXX

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
16.3 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.58, Jaccard 0.58, H-bond role recall 0.20
Burial
74%
Hydrophobic fit
85%
Reason: no major geometry red flags detected
1 protein-contact clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 1 — Very toxic (≤1 mg/L)
Daphnia EC₅₀
Cat. 1 — Very toxic (≤1 mg/L)
Algae IC₅₀
Cat. 1 — Very toxic (≤1 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Medium Ames Clear DILI Low
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.990 kcal/mol/HA) ✓ Good fit quality (FQ -9.00) ✓ Deep burial (74% SASA buried) ✓ Lipophilic contacts well-matched (85%) ✗ Moderate strain (16.3 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-24.741
kcal/mol
LE
-0.990
kcal/mol/HA
Fit Quality
-9.00
FQ (Leeson)
HAC
25
heavy atoms
MW
348
Da
LogP
4.71
cLogP
Final rank
0.3014
rank score
Inter norm
-0.964
normalised
Contacts
11
H-bonds 1
Strain ΔE
16.3 kcal/mol
SASA buried
74%
Lipo contact
85% BSA apolar/total
SASA unbound
602 Ų
Apolar buried
379 Ų

Interaction summary

HBA 1 HY 5 PI 3 CLASH 1

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 1.

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.
Name7PXXContacts19
PoseOpen native poseHB0
IFP residues
ARG17 ASP181 GLY225 HIS241 LEU188 LEU226 LEU229 LYS198 MET233 NDP302 PHE113 PRO115 SER111 SER112 SER227 TYR191 TYR194 VAL230 ARG287
Current overlap11Native recall0.58
Jaccard0.58RMSD-
HB strict1Strict recall0.17
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.20

Protein summary

308 residues
Protein targetT04Atoms4210
Residues308Chains3
Residue summaryLEU:494; ALA:421; ARG:384; VAL:368; THR:295; TYR:231; SER:198; PRO:196; ILE:190; LYS:176; ASN:154; GLU:150; GLY:126; PHE:120; HIS:119; ASP:108

Receptor context

1 kept / 0 excluded
Receptor context filtering: interactions and SASA are computed against protein atoms plus allowed cofactors/ions. Native ligand-like HETATM partners are excluded from scoring.
Kept context 1 Excluded HETATM 0
Kept cofactors / ions
A:NDP302

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
87 0.3014194196000926 -0.963719 -24.7414 1 11 11 0.58 0.20 - no Current
161 0.3760744674294473 -0.932489 -23.7284 0 16 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 -24.741kcal/mol
Ligand efficiency (LE) -0.9897kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.997
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties

Molecular weight 348.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.71
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 16.27kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 38.67kcal/mol
Minimised FF energy 22.40kcal/mol

SASA & burial

✓ computed
SASA (unbound) 601.6Ų
Total solvent-accessible surface area of free ligand
BSA total 448.3Ų
Buried surface area upon binding
BSA apolar 379.2Ų
Hydrophobic contacts buried
BSA polar 69.1Ų
Polar contacts buried
Fraction buried 74.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 84.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1648.4Ų
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 2179.4Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1049.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)