FAIRMol

KB_chagas_170

Pose ID 853 Compound 886 Pose 175

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T02
Human DHFR Human
Ligand KB_chagas_170
PDB5SD8

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 medium Native strong SASA done
Strain ΔE
23.2 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.57, Jaccard 0.48, H-bond role recall 0.60
Burial
87%
Hydrophobic fit
75%
Reason: no major geometry red flags detected
4 protein-contact clashes 4 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.957 kcal/mol/HA) ✓ Good fit quality (FQ -8.92) ✓ Good H-bonds (3 bonds) ✓ Deep burial (87% SASA buried) ✓ Lipophilic contacts well-matched (75%) ✗ High strain energy (23.2 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-25.825
kcal/mol
LE
-0.957
kcal/mol/HA
Fit Quality
-8.92
FQ (Leeson)
HAC
27
heavy atoms
MW
383
Da
LogP
4.21
cLogP
Final rank
2.0694
rank score
Inter norm
-0.974
normalised
Contacts
16
H-bonds 7
Strain ΔE
23.2 kcal/mol
SASA buried
87%
Lipo contact
75% BSA apolar/total
SASA unbound
588 Ų
Apolar buried
383 Ų

Interaction summary

HBD 3 HY 7 PI 3 CLASH 4

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 2.

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.
Name5SD8Contacts21
PoseOpen native poseHB0
IFP residues
ALA10 ASN65 ASP22 GLN36 GLU31 GLY117 GLY21 ILE61 ILE8 LEU23 LEU68 NAP201 PHE32 PHE35 PRO62 SER60 THR137 THR57 TYR122 VAL116 VAL9
Current overlap12Native recall0.57
Jaccard0.48RMSD-
HB strict3Strict recall0.60
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

Protein summary

200 residues
Protein targetT02Atoms3128
Residues200Chains2
Residue summaryLYS:374; LEU:361; GLU:240; VAL:224; ARG:192; PHE:180; ILE:171; PRO:168; ASN:140; SER:132; TYR:126; GLN:119; ASP:108; MET:102; THR:98; GLY:91

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:NAP201

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
144 1.8555715740885987 -1.17427 -31.8707 8 17 0 0.00 0.00 - no Open
175 2.069423808981815 -0.973654 -25.8254 7 16 12 0.57 0.60 - 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 -25.825kcal/mol
Ligand efficiency (LE) -0.9565kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.924
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 383.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.21
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 23.22kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 86.94kcal/mol
Minimised FF energy 63.72kcal/mol

SASA & burial

✓ computed
SASA (unbound) 587.9Ų
Total solvent-accessible surface area of free ligand
BSA total 511.4Ų
Buried surface area upon binding
BSA apolar 383.1Ų
Hydrophobic contacts buried
BSA polar 128.4Ų
Polar contacts buried
Fraction buried 87.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 74.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1535.0Ų
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 1677.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 596.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)