FAIRMol

Z25107081

Pose ID 14203 Compound 1566 Pose 645

DB fairmolDocking 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 Z25107081
PDB3K7O

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
12.5 kcal/mol
Protein clashes
0
Internal clashes
7
Native overlap
contact recall 0.86, Jaccard 0.75, H-bond role recall 0.56
Burial
83%
Hydrophobic fit
55%
Reason: 7 internal clashes
7 intramolecular clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Daphnia EC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Algae IC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Low Ames Clear DILI Low
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.395 kcal/mol/HA) ✓ Good fit quality (FQ -11.44) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (83% SASA buried) ✗ Moderate strain (12.5 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-26.508
kcal/mol
LE
-1.395
kcal/mol/HA
Fit Quality
-11.44
FQ (Leeson)
HAC
19
heavy atoms
MW
292
Da
LogP
2.64
cLogP
Final rank
1.3545
rank score
Inter norm
-1.497
normalised
Contacts
14
H-bonds 10
Strain ΔE
12.5 kcal/mol
SASA buried
83%
Lipo contact
55% BSA apolar/total
SASA unbound
483 Ų
Apolar buried
219 Ų

Interaction summary

HBD 1 HBA 6 HY 3 PI 3 CLASH 0

HBD/HBA · H-bonds (geometric)

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

No clash · clashes detected for this pose.

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 overlap12Native recall0.86
Jaccard0.75RMSD-
HB strict6Strict recall0.50
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
637 -0.12491101091613598 -1.50432 -29.0327 2 10 0 0.00 0.00 - no Open
624 0.859553254517949 -1.84028 -30.5415 8 11 0 0.00 0.00 - no Open
645 1.3544903360149785 -1.49695 -26.5081 10 14 12 0.86 0.56 - no Current
644 1.6425695927885842 -1.20951 -21.2053 7 13 0 0.00 0.00 - no Open
638 2.036705655377867 -1.58228 -28.5129 11 17 0 0.00 0.00 - no Open
644 2.4572488566700317 -1.44642 -26.4617 8 13 0 0.00 0.00 - no Open
632 2.5202235143508624 -1.84946 -32.4157 10 14 0 0.00 0.00 - no Open
641 5.406612215688473 -1.36205 -24.0266 14 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 -26.508kcal/mol
Ligand efficiency (LE) -1.3952kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.436
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 19HA

Physicochemical properties

Molecular weight 292.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.64
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 12.49kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 41.44kcal/mol
Minimised FF energy 28.95kcal/mol

SASA & burial

✓ computed
SASA (unbound) 482.7Ų
Total solvent-accessible surface area of free ligand
BSA total 399.7Ų
Buried surface area upon binding
BSA apolar 219.5Ų
Hydrophobic contacts buried
BSA polar 180.2Ų
Polar contacts buried
Fraction buried 82.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 54.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2003.3Ų
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 731.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)