FAIRMol

Z62457426

Pose ID 14063 Compound 2845 Pose 505

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
T21
T. cruzi R5P T. cruzi
Ligand Z62457426
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
15.5 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.93, Jaccard 0.81, H-bond role recall 0.44
Burial
75%
Hydrophobic fit
89%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.874 kcal/mol/HA) ✓ Good fit quality (FQ -7.94) ✓ Good H-bonds (4 bonds) ✓ Deep burial (75% SASA buried) ✓ Lipophilic contacts well-matched (89%) ✗ Moderate strain (15.5 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (14)
Score
-21.840
kcal/mol
LE
-0.874
kcal/mol/HA
Fit Quality
-7.94
FQ (Leeson)
HAC
25
heavy atoms
MW
392
Da
LogP
5.51
cLogP
Final rank
3.3112
rank score
Inter norm
-0.994
normalised
Contacts
15
H-bonds 5
Strain ΔE
15.5 kcal/mol
SASA buried
75%
Lipo contact
89% BSA apolar/total
SASA unbound
596 Ų
Apolar buried
396 Ų

Interaction summary

HBD 2 HBA 2 HY 3 PI 4 CLASH 2

HBD/HBA · H-bonds (geometric)
HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. 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: permissive.
Name3K7OContacts14
PoseOpen native poseHB0
IFP residues
ARG137 ARG141 ASN103 HIS102 HIS138 ASP10 CYS69 GLY70 GLY74 HIS11 ILE73 PRO12 SER71 TYR46
Current overlap13Native recall0.93
Jaccard0.81RMSD-
HB strict4Strict recall0.33
HB same residue+role4HB role recall0.44
HB same residue4HB residue recall0.50

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
541 1.3196649161199685 -0.987849 -22.8321 2 15 0 0.00 0.00 - no Open
466 1.3985249373606856 -1.33785 -32.581 6 16 0 0.00 0.00 - no Open
489 1.513546778006337 -1.4689 -35.9171 6 16 0 0.00 0.00 - no Open
553 2.22572140854956 -0.975659 -19.8615 1 14 0 0.00 0.00 - no Open
505 3.3112091296955013 -0.994174 -21.8403 5 15 13 0.93 0.44 - 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 -21.840kcal/mol
Ligand efficiency (LE) -0.8736kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.942
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties
Molecular weight 392.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.51
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)
Strain energy (ΔE) 15.48kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 1.17kcal/mol
Minimised FF energy -14.31kcal/mol

SASA & burial

✓ computed
SASA (unbound) 596.2Ų
Total solvent-accessible surface area of free ligand
BSA total 445.1Ų
Buried surface area upon binding
BSA apolar 396.2Ų
Hydrophobic contacts buried
BSA polar 48.9Ų
Polar contacts buried
Fraction buried 74.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 89.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2215.9Ų
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 2482.0Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 812.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)