FAIRMol

ulfkktlib_3174

Pose ID 13727 Compound 1841 Pose 169

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T21
T. cruzi R5P T. cruzi
Ligand ulfkktlib_3174
PDB3K7O

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
26.2 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 1.00, Jaccard 0.88, H-bond role recall 0.56
Burial
88%
Hydrophobic fit
70%
Reason: no major geometry red flags detected
1 protein-contact clashes
EcoTox / ADMET GDS: UNSAFE UL GreenDrugScore ML model
ECOscore
0.768
aquatic tox · BCF · biodeg.
GDS₃ (3-block)
0.511
ADMET + ECO + DL
ADMETscore (GDS)
0.485
absorption · distr. · metab.
DLscore
0.403
drug-likeness
P(SAFE)
0.15
GDS classification
ADMET alerts (in-silico)
hERG Low Ames Clear DILI Low
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.378 kcal/mol/HA) ✓ Good fit quality (FQ -11.05) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (88% SASA buried) ✓ Lipophilic contacts well-matched (70%) ✗ High strain energy (26.2 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (6)
Score
-24.810
kcal/mol
LE
-1.378
kcal/mol/HA
Fit Quality
-11.05
FQ (Leeson)
HAC
18
heavy atoms
MW
262
Da
LogP
1.15
cLogP
Final rank
3.6818
rank score
Inter norm
-1.372
normalised
Contacts
16
H-bonds 11
Strain ΔE
26.2 kcal/mol
SASA buried
88%
Lipo contact
70% BSA apolar/total
SASA unbound
440 Ų
Apolar buried
273 Ų

Interaction summary

HBD 1 HBA 7 HY 3 PI 3 CLASH 1

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 4.

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.
Name3K7OContacts14
PoseOpen native poseHB0
IFP residues
ARG137 ARG141 ASN103 HIS102 HIS138 ASP10 CYS69 GLY70 GLY74 HIS11 ILE73 PRO12 SER71 TYR46
Current overlap14Native recall1.00
Jaccard0.88RMSD-
HB strict5Strict recall0.42
HB same residue+role5HB role recall0.56
HB same residue5HB residue recall0.62

Protein summary

305 residues
Protein targetT21Atoms4646
Residues305Chains2
Residue summaryARG:576; ILE:532; VAL:512; GLU:420; ALA:360; PHE:240; HIS:238; LYS:220; THR:210; LEU:190; PRO:168; TYR:168; GLY:154; SER:154; ASP:144; ASN:112

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
209 -0.6927778079183833 -1.92938 -35.2716 12 11 0 0.00 0.00 - no Open
206 1.6990620298917396 -1.62375 -29.0413 9 9 0 0.00 0.00 - no Open
206 2.2744497918634607 -1.91652 -34.6469 13 12 0 0.00 0.00 - no Open
223 2.9677104985955465 -1.21593 -22.1767 5 13 0 0.00 0.00 - no Open
169 3.6818453760047807 -1.37155 -24.8096 11 16 14 1.00 0.56 - 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 -24.810kcal/mol
Ligand efficiency (LE) -1.3783kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.046
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 18HA

Physicochemical properties

Molecular weight 261.7Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.15
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 26.20kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 116.77kcal/mol
Minimised FF energy 90.57kcal/mol

SASA & burial

✓ computed
SASA (unbound) 440.4Ų
Total solvent-accessible surface area of free ligand
BSA total 387.8Ų
Buried surface area upon binding
BSA apolar 272.7Ų
Hydrophobic contacts buried
BSA polar 115.1Ų
Polar contacts buried
Fraction buried 88.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 70.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2055.6Ų
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 2482.0Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 751.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)