Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
3D complex viewer
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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
39.7 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.81, Jaccard 0.81, H-bond role recall 0.50
Reason: no major geometry red flags detected
3 protein-contact clashes
3 intramolecular clashes
50% of hydrophobic surface appears solvent-exposed (6/12 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Weak
Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.100 kcal/mol/HA)
✓ Good fit quality (FQ -9.86)
✓ Strong H-bond network (6 bonds)
✓ Deep burial (70% SASA buried)
✗ Very high strain energy (39.7 kcal/mol)
✗ Geometry warnings
✗ Internal clashes (6)
Score
-26.398
kcal/mol
LE
-1.100
kcal/mol/HA
Fit Quality
-9.86
FQ (Leeson)
HAC
24
heavy atoms
MW
371
Da
LogP
-0.09
cLogP
Final rank
4.1690
rank score
Inter norm
-1.138
normalised
Contacts
13
H-bonds 11
Interaction summary
HBA 6
HY 3
PI 2
CLASH 3
Interaction summary
HBA 6
HY 3
PI 2
CLASH 3
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.
| Name | 6FXS | Contacts | 16 |
|---|---|---|---|
| Pose | Open native pose | HB | 0 |
| IFP residues |
ARG140
ARG144
ASN106
HIS105
HIS141
ARG46
ASP13
CYS72
GLY73
GLY75
GLY77
HIS14
ILE15
ILE76
SER74
TYR49
| ||
| Current overlap | 13 | Native recall | 0.81 |
| Jaccard | 0.81 | RMSD | - |
| HB strict | 7 | Strict recall | 0.58 |
| HB same residue+role | 5 | HB role recall | 0.50 |
| HB same residue | 5 | HB residue recall | 0.50 |
Protein summary
302 residues
| Protein target | T12 | Atoms | 4598 |
|---|---|---|---|
| Residues | 302 | Chains | 2 |
| Residue summary | ARG:576; ILE:456; VAL:448; GLU:360; ALA:340; LEU:304; TYR:252; HIS:204; PRO:196; THR:196; GLY:182; LYS:176; ASP:168; PHE:160; MET:153; SER:121 | ||
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:CSD72
All stored poses for this docking hit
| Pose | Final rank | Inter norm | Score | HB | CT | CT overlap | CT recall | HB role rec. | RMSD | Excluded | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 345 | 2.3852300086674956 | -1.22883 | -27.1471 | 9 | 14 | 0 | 0.00 | 0.00 | - | no | Open |
| 314 | 2.517801636797984 | -0.942176 | -24.1381 | 5 | 13 | 0 | 0.00 | 0.00 | - | no | Open |
| 272 | 2.9189537056135753 | -1.1672 | -29.7247 | 13 | 13 | 0 | 0.00 | 0.00 | - | no | Open |
| 414 | 3.1764200655621546 | -1.06469 | -24.8485 | 7 | 16 | 0 | 0.00 | 0.00 | - | no | Open |
| 297 | 3.248504433051989 | -0.969391 | -16.4093 | 6 | 17 | 0 | 0.00 | 0.00 | - | no | Open |
| 274 | 3.710791772393639 | -1.07629 | -24.7513 | 9 | 15 | 0 | 0.00 | 0.00 | - | no | Open |
| 383 | 3.8800478154472353 | -1.20228 | -28.5869 | 11 | 16 | 0 | 0.00 | 0.00 | - | no | Open |
| 258 | 4.050558324957515 | -1.18293 | -28.8656 | 12 | 22 | 0 | 0.00 | 0.00 | - | no | Open |
| 259 | 4.168971048980509 | -1.13785 | -26.3976 | 11 | 13 | 13 | 0.81 | 0.50 | - | no | Current |
| 364 | 4.531136784780454 | -1.24281 | -28.4071 | 7 | 15 | 0 | 0.00 | 0.00 | - | no | Open |
| 247 | 4.9387540833797265 | -1.05098 | -20.2639 | 12 | 13 | 5 | 0.31 | 0.20 | - | no | Open |
| 285 | 5.825536396152312 | -1.3346 | -31.8099 | 16 | 21 | 0 | 0.00 | 0.00 | - | no | Open |
Molecular metrics
RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
Scoring & efficiency
Docking score
-26.398kcal/mol
Ligand efficiency (LE)
-1.0999kcal/mol/HA
Score / heavy atom count
Fit quality (FQ)
-9.857
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count
24HA
Physicochemical properties
Molecular weight
371.4Da
Lipinski: ≤ 500 Da
LogP (cLogP)
-0.09
Lipinski: ≤ 5
Rotatable bonds
8
Conformational strain (MMFF94s)
Strain energy (ΔE)
39.74kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy
-65.70kcal/mol
Minimised FF energy
-105.44kcal/mol
SASA & burial
✓ computed
SASA (unbound)
563.8Ų
Total solvent-accessible surface area of free ligand
BSA total
396.6Ų
Buried surface area upon binding
BSA apolar
172.5Ų
Hydrophobic contacts buried
BSA polar
224.1Ų
Polar contacts buried
Fraction buried
70.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio
43.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA
-2010.8Ų
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
2454.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA
763.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)