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
Weak
SASA cached
Weak or marginal quality
Binding strong
Geometry high
Native strong
SASA done
Strain ΔE
11.8 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.81, Jaccard 0.71, H-bond role recall 0.67
Reason: no major geometry red flags detected
1 protein-contact clashes
41% of hydrophobic surface appears solvent-exposed (9/22 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 (-0.817 kcal/mol/HA)
✓ Good fit quality (FQ -7.96)
✓ Strong H-bond network (6 bonds)
✓ Deep burial (87% SASA buried)
✓ Lipophilic contacts well-matched (81%)
✗ Moderate strain (11.8 kcal/mol)
✗ Geometry warnings
✗ Many internal clashes (15)
Score
-25.331
kcal/mol
LE
-0.817
kcal/mol/HA
Fit Quality
-7.96
FQ (Leeson)
HAC
31
heavy atoms
MW
414
Da
LogP
2.17
cLogP
Final rank
4.1308
rank score
Inter norm
-0.841
normalised
Contacts
20
H-bonds 12
Interaction summary
HBD 5
HBA 1
HY 7
PI 1
CLASH 1
Interaction summary
HBD 5
HBA 1
HY 7
PI 1
CLASH 1
HBD/HBA · H-bonds (geometric)
HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 6.
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.
| 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 | 17 | Native recall | 0.81 |
| Jaccard | 0.71 | RMSD | - |
| HB strict | 4 | Strict recall | 0.57 |
| HB same residue+role | 4 | HB role recall | 0.67 |
| HB same residue | 4 | HB residue recall | 0.67 |
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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 14 | 1.4086447847594457 | -0.880345 | -26.6043 | 9 | 19 | 1 | 0.05 | 0.00 | - | no | Open |
| 11 | 1.6715321785787283 | -1.25498 | -39.5123 | 6 | 13 | 0 | 0.00 | 0.00 | - | no | Open |
| 13 | 2.417113267721793 | -0.984453 | -29.2173 | 6 | 15 | 0 | 0.00 | 0.00 | - | no | Open |
| 12 | 3.2811040289228566 | -0.84101 | -20.5016 | 5 | 15 | 0 | 0.00 | 0.00 | - | no | Open |
| 11 | 4.1307790689011 | -0.841465 | -25.3309 | 12 | 20 | 17 | 0.81 | 0.67 | - | no | Current |
Molecular metrics
RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
Scoring & efficiency
Docking score
-25.331kcal/mol
Ligand efficiency (LE)
-0.8171kcal/mol/HA
Score / heavy atom count
Fit quality (FQ)
-7.961
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count
31HA
Physicochemical properties
Molecular weight
414.5Da
Lipinski: ≤ 500 Da
LogP (cLogP)
2.17
Lipinski: ≤ 5
Rotatable bonds
9
Conformational strain (MMFF94s)
Strain energy (ΔE)
11.82kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy
19.58kcal/mol
Minimised FF energy
7.76kcal/mol
SASA & burial
✓ computed
SASA (unbound)
709.5Ų
Total solvent-accessible surface area of free ligand
BSA total
616.1Ų
Buried surface area upon binding
BSA apolar
499.7Ų
Hydrophobic contacts buried
BSA polar
116.4Ų
Polar contacts buried
Fraction buried
86.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio
81.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA
-3342.1Ų
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
1677.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)