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 mixed
SASA done
Strain ΔE
57.1 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.48, Jaccard 0.40, H-bond role recall 0.00
Reason: strain 57.1 kcal/mol
strain ΔE 57.1 kcal/mol
1 protein-contact clashes
35% of hydrophobic surface appears solvent-exposed (7/20 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 (-0.624 kcal/mol/HA)
✓ Good fit quality (FQ -6.25)
✓ Deep burial (72% SASA buried)
✓ Lipophilic contacts well-matched (74%)
✗ Extreme strain energy (57.1 kcal/mol)
✗ Geometry warnings
✗ Minor protein-contact clashes (3)
✗ Many internal clashes (19)
Score
-21.220
kcal/mol
LE
-0.624
kcal/mol/HA
Fit Quality
-6.25
FQ (Leeson)
HAC
34
heavy atoms
MW
475
Da
LogP
0.55
cLogP
Final rank
1.8842
rank score
Inter norm
-0.770
normalised
Contacts
14
H-bonds 8
Interaction summary
HBD 2
PC 1
HY 7
PI 1
CLASH 1
Interaction summary
HBD 2
PC 1
HY 7
PI 1
CLASH 1
HBD/HBA · H-bonds (geometric)
HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 1.
PC · Polar contacts (possible, no H geometry)
HBD?/HBA? — heavy-atom distance only, H geometry unavailable. May be real H-bonds.
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 | 3CL9 | Contacts | 21 |
|---|---|---|---|
| Pose | Open native pose | HB | 0 |
| IFP residues |
NDP301
ALA32
ARG97
ASP52
GLY157
ILE45
LEU94
LYS57
MET53
PHE55
PHE56
PHE91
PRO88
SER86
THR180
THR83
TYR162
VAL156
VAL30
VAL31
VAL87
| ||
| Current overlap | 10 | Native recall | 0.48 |
| Jaccard | 0.40 | RMSD | - |
| HB strict | 0 | Strict recall | 0.00 |
| HB same residue+role | 0 | HB role recall | 0.00 |
| HB same residue | 0 | HB residue recall | 0.00 |
Protein summary
511 residues
| Protein target | T09 | Atoms | 8170 |
|---|---|---|---|
| Residues | 511 | Chains | 2 |
| Residue summary | LEU:1064; ARG:840; LYS:572; GLU:570; VAL:528; PHE:460; ILE:456; ALA:440; PRO:420; THR:406; TYR:357; ASP:312; GLN:289; ASN:238; SER:231; GLY:224 | ||
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:NDP301
All stored poses for this docking hit
| Pose | Final rank | Inter norm | Score | HB | CT | CT overlap | CT recall | HB role rec. | RMSD | Excluded | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 377 | 1.8841664189840277 | -0.769525 | -21.2201 | 8 | 14 | 10 | 0.48 | 0.00 | - | no | Current |
| 448 | 3.071887405802105 | -0.852423 | -21.1023 | 6 | 15 | 0 | 0.00 | 0.00 | - | no | Open |
| 364 | 3.133688206135927 | -1.02712 | -22.5304 | 7 | 19 | 0 | 0.00 | 0.00 | - | no | Open |
| 453 | 4.086047927141944 | -0.700167 | -14.205 | 3 | 15 | 0 | 0.00 | 0.00 | - | no | Open |
| 320 | 4.52394464358143 | -1.02112 | -24.6335 | 11 | 20 | 0 | 0.00 | 0.00 | - | no | Open |
| 478 | 5.104203299647547 | -0.685287 | -16.0435 | 8 | 18 | 0 | 0.00 | 0.00 | - | no | Open |
| 345 | 5.2886042849095505 | -0.850662 | -20.1556 | 10 | 18 | 0 | 0.00 | 0.00 | - | no | Open |
| 320 | 5.993348980737754 | -0.738643 | -19.1252 | 12 | 19 | 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
-21.220kcal/mol
Ligand efficiency (LE)
-0.6241kcal/mol/HA
Score / heavy atom count
Fit quality (FQ)
-6.245
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count
34HA
Physicochemical properties
Molecular weight
475.4Da
Lipinski: ≤ 500 Da
LogP (cLogP)
0.55
Lipinski: ≤ 5
Rotatable bonds
8
Conformational strain (MMFF94s)
Strain energy (ΔE)
57.09kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy
183.50kcal/mol
Minimised FF energy
126.41kcal/mol
SASA & burial
✓ computed
SASA (unbound)
717.2Ų
Total solvent-accessible surface area of free ligand
BSA total
513.1Ų
Buried surface area upon binding
BSA apolar
378.1Ų
Hydrophobic contacts buried
BSA polar
135.1Ų
Polar contacts buried
Fraction buried
71.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio
73.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA
-3269.0Ų
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
4428.5Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA
1716.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)