Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
3D complex viewer
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject
SASA cached
Promising but geometrically suspicious
Binding strong
Geometry low
Native strong
SASA done
Strain ΔE
49.5 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.93, Jaccard 0.68, H-bond role recall 0.56
Reason: strain 49.5 kcal/mol
strain ΔE 49.5 kcal/mol
2 protein-contact clashes
36% of hydrophobic surface appears solvent-exposed (8/22 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Reject
Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.818 kcal/mol/HA)
✓ Good fit quality (FQ -7.81)
✓ Strong H-bond network (8 bonds)
✓ Deep burial (74% SASA buried)
✓ Lipophilic contacts well-matched (84%)
✗ Extreme strain energy (49.5 kcal/mol)
✗ Geometry warnings
✗ Many internal clashes (18)
Score
-23.713
kcal/mol
LE
-0.818
kcal/mol/HA
Fit Quality
-7.81
FQ (Leeson)
HAC
29
heavy atoms
MW
384
Da
LogP
3.00
cLogP
Final rank
3.3425
rank score
Inter norm
-0.905
normalised
Contacts
18
H-bonds 10
Interaction summary
HBA 8
HY 2
PI 3
CLASH 2
Interaction summary
HBA 8
HY 2
PI 3
CLASH 2
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
Native ligand reference
★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
| Name | 3K7O | Contacts | 14 |
|---|---|---|---|
| Pose | Open native pose | HB | 0 |
| IFP residues |
ARG137
ARG141
ASN103
HIS102
HIS138
ASP10
CYS69
GLY70
GLY74
HIS11
ILE73
PRO12
SER71
TYR46
| ||
| Current overlap | 13 | Native recall | 0.93 |
| Jaccard | 0.68 | RMSD | - |
| HB strict | 6 | Strict recall | 0.50 |
| HB same residue+role | 5 | HB role recall | 0.56 |
| HB same residue | 5 | HB residue recall | 0.62 |
Protein summary
305 residues
| Protein target | T21 | Atoms | 4646 |
|---|---|---|---|
| Residues | 305 | Chains | 2 |
| Residue summary | ARG: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
Molecular metrics
RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
Scoring & efficiency
Docking score
-23.713kcal/mol
Ligand efficiency (LE)
-0.8177kcal/mol/HA
Score / heavy atom count
Fit quality (FQ)
-7.806
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count
29HA
Physicochemical properties
Molecular weight
384.4Da
Lipinski: ≤ 500 Da
LogP (cLogP)
3.00
Lipinski: ≤ 5
Rotatable bonds
4
Conformational strain (MMFF94s)
Strain energy (ΔE)
49.47kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy
133.90kcal/mol
Minimised FF energy
84.43kcal/mol
SASA & burial
✓ computed
SASA (unbound)
647.6Ų
Total solvent-accessible surface area of free ligand
BSA total
475.9Ų
Buried surface area upon binding
BSA apolar
398.3Ų
Hydrophobic contacts buried
BSA polar
77.5Ų
Polar contacts buried
Fraction buried
73.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio
83.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA
-2253.7Ų
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
760.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)